Thank you so much for your complete tutorial! The last two years our machine hasn't been working properly, and now we know why and my son and I fixed it.
Thank you for doing this. I have two of these & one needed a new heater. The other failed this year and the heater is working. I'll have at it as you did. Thanks for breaking the ground so I don't have to reinvent the wheel.
@@DavinDesborough Thanks. Job done. I split the halves of the engine and it was packed full of crud which I dremeled out. The ignitor was actually working so I left it in. The gas jet was plugged up so I took that apart and cleaned it out. For some reason the propane tank valve didn't release so I switched tanks and this one was fine. I used deoxit on all the electrical contacts to keep corrosion down & Put a strip of tape over each of the four case screw holes as mud dobbers had packed the slots with crud. When reassembled it started in a very few minutes. After seeing how it's done I'll just do a cleaning every winter and have it good as new for each spring. Thanks again!
I just thinking the same way. India needs these things badly . The original company or another one made it in india little bit cheaply so that we can afford it .I want to build one with little bit design changes . I have some small ideas , maybe I will use faul smelling Attar / perfume made from rotten fish etc . Instead of propane gas cylinder we can use biogas .
Thanks for taking the time to publish this video. I had mine mostly apart and determined I needed a new igniter (which was also the error code). Your video gave me the confidence to fully disassemble, clean and inspect. I found the inside of the chamber corroded and the drain plugged, so I got it all cleaned up. I also bought some 8-32 nylon screws (from an electronics supplier) to hold the thermistor in place (which I found with the head broken off). It’s all back together and running fine. Note that I have an old Liberty model, where the igniter is soldered directly into the circuit board, so I cut the plug off the new unit and soldered it in.
This video saved my Mosquito Magnet and me a lot of money. My igniter crumbled when I removed it. Found another on Ebay for $29.00. My Chamber was also corroded and filled with Earwigs.
Thanks! And I totally agree about UA-cam. I started creating videos to pay forward the knowledge I received from other creators. Glad you got something out of this. Have a great day!
Thanks for tearing the whole thing down even though you probably could have stopped at the thermocoupler. I have a lot more confidence being able to troubleshoot easy to solve issues to keep mine up and running. I just spent $70 to have my jet cleaned.
Thanks for the video! Just bought a 2nd hand unit for 100€ in Finland. Looking into the probable malfunction before i even have my hands on the unit yet. People like you make the world a better place, at least for us makers : )
@@DavinDesborough checklist: -heater is glowing -solenoid is activating -solenoid gas valve is really clean -thermistor is reading ~150K ohms in room temp, ~30K ohms when heating with a jet torch for a bit - seems reasonable (running resistance should be around 5K ohms..?) -propane is coming out(cannot light it with jet torch though, too high flow for that?). Have you taken apart your gas jet? Does it have any other parts inside it besides the jet itself and a "copper mesh" - nothing under the mesh? Former models used to have some channeling made with a screw with a "mushroom" looking part that restricted the gas flow or something like that. The screw used to have a groove to be opened with a flathead screwdriver. I only get the fast flashing red ledalthough everything looks good, only the gas flow is suspicious - although it looks exactly the same as yours when you light it up.
@@iikkakonola I have separated the jet from the mesh and there was nothing in there, or I didn't notice it if there was. If you try running it with the cover off, does the metal get appreciably hotter? Is so, then you have ignition, but it isn't getting the right signal from the thermistor. I'll need to change the tank on mine soon, and I'll try to get some readings from the thermistor when I do so we have something to compare.
Hi, I did a complete service on my Mosquito Magnet patriot Plus today. Your video has been very helpful. Thank you very much. I have a suggstion. In the back of the fire chamber t is a spring with an opening on each side. Use a flat screwdriver on each side and press out the spring. Best way to clean the chamber is to disassemble it frrom the chamber and then you are able to take all filters out. Clean the chamber for carbon, use a brush to clean the ffilters and clean the wall inside the chamber for carbon build up. Inside it used to build up a lot of carbon. I took out at least 100 gram carbon. Now my Mosquito Magnet Patriot is working like a charm.
An excellent video. Interesting to see how simple this machine is. I cleaned mine ( chamber was pretty dirty ). Igniter switch and gas valve work but I still get red light. I am assuming it might be circuit board or heat sensor. Still testing but am very comfortable taking it apart and putting it back together after watching your video. Really do appreciate videos such as this one !
Glad it helped! As for the continued issue, take some sandpaper to the metal probe for the temp sensor. In my recent history, getting the oxidation off of that has made it fire up no problem.
The little clean out port in the front that you screw in the co 2 can to blow the line out is just a tire valve. I just use my compressor and a air chuck.
Thank you for making this video. I was having trouble finding one that showed the combuster being disassembled. Mine seems to be functioning fine but not catching any mosquitoes. Mosquito Magnet suggested taking it apart and cleaning it. They didn't mention corrosion but obviously that's probably what my problem is. I just wanted to see how much of a hassle it was going to be. Thank you also for not editing out the part when you discovered the connector had come undone. If it did come undone while you were working on it then it'll probably happen to me too. I'll now know to be watching out for it. Two thumbs up for a great video!!!
Thanks! I would recommend just taking out and cleaning the thermistor first. I think corrosion building up on that can effective keep the unit shut down by not letting the sensor get hot enough in the time allotted for startup. If the plastic screw breaks when you try to remove it, use high-temp silicone (eg for engines) to stick the thermistor back in. Just use it sparingly. Good luck!
@@DavinDesborough Mine comes on and seems to be running the way it's supposed to. The red light blinks on and off during warm up and then turns solid red after it's been on for a while. I let it run for two days and only caught five mosquitoes. All the screens look clean from the outside. That's why the Rep suggested taking it apart, including the combuster. I'm guessing the thermistor should be okay or I wouldn't get a solid red light. I'll let you know what I find when I have a chance to open it up. It's been in in storage for a long time so I wouldn't be surprised if it has a mouse nest inside the housing. Thanks again for the video, it's appreciated.
@@KX220R Mine was doing that. I recalled a video about cloths dryer screens plugging, mine held water and the cloths were taking way longer to dry. I scrubbed the screen with a soft brush and soapy water and the dryer worked fine after cleaning. So I tried it with the basket and side screen on the M M, and it worked better also.
Thank you for your video. I really appreciate it. When I first purchased this machine it worked just like you stated. The second year of operation was less reliable and required CO2 cartridges and a ridiculously expensive CO2 cartridge attachment to clean out the propane burning unit. From this point on the operation was sporadic and VERY frustrating. I also found that the mosquito magnet CO2 cartridges where expensive to purchase and it was suggested that every time I swapped out the propane tank, I was required to use a CO2 cartridge to clean out the working parts. I did this as per Mosquito Magnet instructions. All in all it cost me about $100 to $150 to run for the first season. This expense excludes the purchase of above mentioned equipment ie the cartridges and attachment. In year 3 (this year) I fired up my mosquito magnet and spent an entire day trying to get it running. As the warranty on this useless machine had expired after the first year I had no issue opening it up. After watching a few UA-cam videos I diagnosed a problematic "Thermistor" I believe this temperature probe regulates the internal temperature of the mosquito magnet and keeps it running. I went online to purchase a replacement part and found that there are no available parts for the mosquito magnet. The only item they allow to be sold online is the igniter part (on ebay) I called the mosquito magnet service people and was rudely informed that they do not have part numbers or are able to send me any parts at all. I was referred to a service center in Canada. Although Mosquito Magnet worked well for a year and caught basket loads of mosquito's the subsequent years year of operation were terrible. I paid $400 for something that has a shelf life of approximately a year to two years max. There is absolutely no customer service or parts available. I WOULD NOT BUY THIS PRODUCT. Its finicky and expensive to run! I will be posting this to other mosquito magnet youtube videos sites in order to warn other people of this gimmick. If anybody wants to purchase my broken mosquito magnet and resides in Ontario please let me know and maybe I'll be able to re coop some lost money:)
Richard W's comment matches my experience almost exactly. I will say, that first year, it was unbelievable how many mosquitoes the unit caught. I was very impressed. Since I bought it in late spring, my warranty was still valid when it failed to start the next spring. I spent the second summer shipping the unit back and forth to Mosquito Magnet "for free". All summer...there is a new shorter warranty period when they send it back to you, but it didn't matter. I would literally get it back, follow the startup directions to a tee and watch that fast blinking red light after multiple attempts. Another trip to the UPS store....all summer and fall. I swear I think they just slapped a new label on it and sent right back to me each time. In the fall of the second summer I just gave up and decided to fix it myself. Here I am at the start of year 3. I've done everything you did prior to watching this video and have determined that it is the thermistor. If not, it's the circuit board. I was hoping to find a company for a replacement thermistor. If it's the circuit board I'm screwed. Mosquito Magnet would never sell you one of those. It's a one year product folks. Don't take my word for it. Just do a little searching. If your handy, you bought a yearly task and likely some part replacements. If your not, budget for a new unit each year. Does anyone know of a reliable unit in competition with Mosquito Magnet?
@@DavinDesborough Hi Davin, Thanks for the educational video! My case is similar to Richard W in that I think I need a new thermocouple/thermister for a my Patriot MM. The wire has come separate from the metal portion of the thermocouple/thermister and I'm not sure how to fasten (glue?) it back. Do you know where I might be able to acquire a thermocouple/thermister? Thanks much! John
Great video, thanks! Couple of design changes on mine - the solenoid has a circlip rather than a nut holding it on, and the thermocouple had a plastic sleeve insert insulating it from the main alloy body. (I wonder if this was to prevent sacrificial corrosion from the thermistor? No corrosion around it at all and it was fairly clean - unlike every video I've seen so far. Unit is a UK version and about 4 years old. The filter basket inside the injector does get very mucky - I used nail varnish remover which seemed to clear it up. Still not working, but getting there :)
I know this is an older video but I really like that screwdriver. Where can I get that set? Also great video. I bought two used ones, one for us and one for my in-laws. I took them apart following your video and they work great. Thank you so much for making this.
Thanks for this. Considering buying this device, but I understand now that knowing how to maintain the thing is imperative. BTW, that's one giant mosquito you got flying by in the background (12:00).
It really works well and I would still recommend them if you don't mind taking them apart every couple years. I have not seen anything better to date. And yes, I am glad that mosquito, flew by instead of paying a visit. :-)
you need to buy octanol too, they fit inside a tube and that's where the magig happens. The unit burns propane to generate CO2 and heat to mimic an animal but they need the octomol so that the midge pinpoints the tube and gets sucked in.
Thanks for the amazing video. We followed your tutorial step by step and having cleaned all the parts and ensured it all works disassembled it still isn’t firing up and we’re getting the dreaded fast blinking light.
Does it get warm during the "starting" phase? If so, it is lighting up, but not registering the heat change. I need to further investigate replacing the thermistor, because I think that is the problem for many people.
@@johnm9569 You won't find an official part. You'll need to get an axial thermistor (like this www.digikey.com/en/products/detail/littelfuse-inc./303JG1F/10261286) and mount it in the metal probe. The issue is what thermistor value to get? When I clean my trap this spring (been too busy thus far) I will take some measurements to try and figure that out. Sorry I can't provide more help now.
@DavinDesborough I just bought this from a person who said they used it once. I'm getting the red flash. The inside is spotless and looks brand new. The ignitor lights red hot, the nozzle produces gas after the click verified with a lighter, but it still turns off after about 15 min. I've cleaned everything and lightly sanded both the ignitor and the thermistor.
@@johnm9569 If you leave the plastic off, do you feel the metal getting hotter during those 15 minutes? If there is combustion, it will get warm to the touch.
Davin, outstanding video! Thanks so much for what you've done here. This trap kills bugs like nothing else, when it's working; so it's definitely worth learning how to do good upkeep on it. I've had my trap for 3-4 years (**), and had to send it back three times for maintenance. (Last time, they sent me a replacement, refurbished unit.) Now, a year after the replacement, mine is down again. Very finicky device. But with your video, I have plenty of hope that I can repair it myself. Going to give it a shot this week. I've already taken out and cleaned the nozzle -- mine was black on the "filter" end with carbon buildup. I cleaned it pretty well with rubbing alcohol, and the quick clear cartridge seems to flow freely through it. But in the meantime, I noticed that it's very hard to find out what are the correct part numbers for replacement parts. Do you have a list of them? Or advice on how to identify them? I haven't found good resources. If you are able, I think it would be great to post a list of the most obvious parts: the nozzle, the thermister, the solenoid/valve... anything else?
First off, thank you and I wish you luck! As for replacement parts, that is indeed tough. MM seems to have tight control over them and limits them to dealers. You can find some things on ebay. The only part I have had to replace is an igniter, which you can find there. MY advice is to watch local listings or even keep an eye out on trash day as people tend to get fed up with these devices and get rid of them. If you are lucky, you could get another unit for free or cheap and use it for parts (or fix it up and have 2).
@@DavinDesborough You are fight about getting them cheap ;-) I got one at a flea market for $15 ;-) he said it would not start this year, I figured spare parts. Got it home and apart and it looked like they ran it without the basket in place, it was so full of bugs the fan could not spin. Out of the 4 I have it is the best one ;-)
I just had my patriot apart as well. I can see it igniting and the catalytic igniting inside, however it won’t stay lite. I cleaned the igniter and thermocouple. I’m wondering if I have a defective thermocouple as it won’t register enough heat to stay on? Do have a part number for the thermocouple? Second question. Is there any way of cleaning the brass gas tip? I’ve got a tip cleaner kit, but that hole is so small.
You can get them on Amazon: amzn.to/3lEDTgL, though they seem to be out of them now. I'd try again in the spring. Otherwise, you can always go to mostuitomagnet.com
Hi David, a follow-up to my earlier post today. Tried to clean, lightly sand a second time but I’m still getting the dreaded flashing red light. Also called the Mosquito Magnet hotline but representative stated they do not sell replacement parts. They offered me 15 % off the cost of a new replacement unit, or indicated I had to ship at my cost to one of there three service reps either in PEI, Manitoba or Saskatchewan to get it fixed An expensive proposition since I live in Ontario. All this to say I am not very impressed with customer support. Will try to give it another clean, or perhaps call one of the service centres to see if they can just ship the part I need. Thanks again.
This is the the bad side of the machine for sure. Is the machine getting warm at all during the tail end of the startup cycle? If so, then you have combustion and there is something wrong in the temp sensor. If it stays cold, then I would go back to the gas jet and soak it in some carb cleaner or something to make sure it isn't clogged. Best of luck!
I am not sure what the model number is. I can say you won't be able to get an official part as Mosquito Magnet does not sell replacement parts. You should be able to use something like this: www.amazon.com/SHP-MOS1-Mosquito-Magnet-Ignitor/dp/B0C4QFW972. A Google search will provide other sources for ignitors too. Good luck!
just for the record. There are no flames with these units. It's platinum-based catalytic process which is why the efficiency is over 99%. Carbon Dioxide, Water Vapor and heat.
Sorry for the late response. You won't be able to order one as the company does not sell parts to the public. I can not find my purchase from way back when. I have looked around and can not find anything either. Basically, you would just need to buy a bare thermistor and put it in. I need to take one apart again and try to determine what thermistor is being used (resistance/temperature). That said, have you tested yours with a multimeter? If you heat it up and the voltage changes, it is probably OK. I will point you to this video: ua-cam.com/video/60F9IkjqUVE/v-deo.html. I think his idea of securing it with a metal screw is a good one. It would help to bring more heat to the thermistor. the only down side would be the possibly of corrosion between dissimilar metals.
Very good video should there be a need to take this apart! I have recently purchased the same machine and I was surprised how low the vacuum was. To a point where I thought it must be broken. Unfortunately the whole of internet has not been able to answer my question. Should I feel any suction if I put my hand in front of the funnel?
There should be some air moving, but not not a strong vacuum. Apparently, mosquitos have a natural reaction to fly up when startled or trying to escape. That puts them right into the bell and they ride the airflow into the basket. Just to be sure, check that the door to the basket is fully closed or that will cause airflow issues.
Side note for who it concerns, those igniters are EXTREMELY easy to break. Had torpedo heater that i was trying to fix and igniter was bit stuck, got it out but it snapped in process. Then tried to measure what kind of voltage board puts out, but moment i turn it on, mosfet exploded so it needs to have load on it, so consider this when trying to repair. In this case its low voltage while mine was 230v heater. edit: got mine most likely fixed solenoid seemed to be bit stiff from storage, needed to take it apart. On 2013 model getting the peace sit properly is a pain and if i recall right you should never put grease on to help it slide, least certain types of grease. There should be products that works with natural gas though. I just carefully push it in place with parrot pliers being careful not to damage the O-ring. Cleaned the thermocouple and it seems to work now, gotta do more testing since i got this unit for free from E-waste pile. Also when you need to replace the gas line, see how it sits in place and when putting new one in place check it sits properly, mine got new line in old ends and sleeve didnt go trough the hole being bit larger so needed to remove some plastic to get it sit right. Otherwise the top wont sit properly same with unit internals and there is air flow issues. Mind replacing and sealing the airways so it can properly suck mosquitos in.
I have a Patriot model; after checking critical components like igniter and thermistor, finally down to gas solenoid valve; I injected 12 volts into its input wiring and heard a click, so assume it works. Looks like no 12 volts coming from board, and no continuity from board solder joints to output pins (for solenoid activation) so assuming corrosion on solder joints is the problem. This unit has been outside in the rain for ten years, and not sure how they would expect the electronics to function in such a harsh environment. Hope I am on the right track; will desolder and re-solder the board solder joints next.
What I think often happens is that the thermistor gets old or the probe is too covered in corrosion. Either way, the machines does not read the proper resistance and does not think it has started. What I like to do it try to run it. If it lights, the metal of the heat exchanger will warm up fairly fast. If you feel that warmth and then it still shuts off, it must be the thermistor (or the wiring related to it). I hope you got it working again. Sorry it took so long to respond.
This video is impressive! I just tried one 5 weeks ago. After following all the directions in setting up, the red flash was blinking fast. I returned it and was replaced. I followed the directions again...the red flash was steady and stayed for 2 weeks. Just 2 days ago, I noticed the red flash was blinking fast. I thought the propane gas was out so I replaced it with a new one. I installed it again but it is doing the same thing - the red flash was blinking fast. This is a brand new unit. Do you think there’s something wrong in the installation or it’s in the machine? Thanks
It's hard to think that there is anything wrong with how you assembled it or your environment (unless you live far, far north and it is still really cold overnight). I would call MM and see what they say. They will probably swap out the head of the unit as you have the issue on multiple propane tanks. Good luck!
You said you replaced the thermocouple before. Did you just use a generic universal one? Or did u manage to get a mosquito magnet one same one as came out? Or was it slightly different universal one that you replaced?
It was a long time ago.... I believe I found one on eBay or Amazon that was listed as compatible. Unfortunately I am not finding the order. One thing to note, it is actually a thermistor, not a thermocouple (I was wrong in the video). The part number is MM490016, but I have not found a current US seller. When I clean the machines this spring, I need to try and measure the ones I have to see what their ohm value is. Worst case, I plan to buy a "variety pack" of on Amazon and just try out different values. For example: amzn.to/3V2kgUW (affiliate link, does not cost you anything, supports the channel)
Just found a brand new liberty plus at a thrift store, only part I’m missing is the ac adapter to plug into the charge port on the back. Any idea what adapter would work?
otherwise a nice idea, but creating this much CO2 indoors would end problems with mosquitoes in a way that people inside house are suffocated by morning : )
Other than the igniter, I have never needed a replacement part. From looking around, it seems they strictly control their replacement parts. You are, unfortunately, going to need to find suitable replacements on your own, or find a machine that someone is getting rid of and scavenge parts from it.
I noticed you put it to work immediately after the repair. Did you use any Octenol bait in the bottom compartment or does the machine do just fine in attracting Mosquitos w/CO2 only? - Thanks.
I do run the Octenol as it seems to help. I bought a bunch of it during an off-season sale, so it does not cost me much. It will still work without it, but it seems like I catch more with it. Good luck!
Where to buy it from online ? Is it available on Amazon ? Also please let us know about its cost price and maintenance/running cost if any... Thanks in advance...
They have them on Amazon amzn.to/30YDv51. I think they are usually more available in the spring. You could also just go to company website: www.mosquitomagnet.com/mosquito-magnet-patriot-plus-mosquito-trap-mm4200b Running cost is a tank of propane every few weeks. It uses a small amount of electricity too. If you want to lure more in, there is an optional attractant you can buy as well. Check the company website on that. Thanks for watching!
Hi, this is very good video indeed. we are thinking of getting one. But there are a lot of negative reviews. Most of them said catching at beginning but not reliable over time. Some people said broken after 2 summers. We will be using this outside US, so we couldnt get service from Manufacturer. Just curious how reliable this is.
I would agree with the impression you have. They are great at the start, but will start acting up. I have three different models and they all take the sort of maintenance I show in this video (see the other videos in my channel). If this does not scare you off, then get one, because they work great when they are working. If you want something that is more of a dependable appliance, this isn't it. Thanks for the compliment, and good luck!
@@BurmeseExplorer I agree with Davin. I absolutely love this trap when it's working, and it kills bugs by the truckload. BUT, it's a very finicky unit, and you should definitely expect to have to repair it once a year. Hope you're happy with it.
@@BurmeseExplorer I truly hope you have had a good experience, but my hunch is that this year you will experience regret in having bought it. I am not trying to be mean. Believe me, I wish you the best, but if your experience is like most, you are on the verge of bitterness and resentment towards Mosquito Magnet. For your sake, I hope I am wrong.
Hey man, I got a used mosquito magnet that isn't working, Ive checked EVERYTHING, ignitor lights up, thermistor is registering ohms and is going up and down depending on the heat if I blow warm air on it, thermistor is completely clean and new looking, propane is coming out nicely, gas orifice isn't blocked, solenoid clicks and opens gas, new propane tanks tried 2 different ones, everything is clean and seems to be working, but it's keep flashing fast red. I believe it's not actually igniting the propane. I don't really feel warmth at the front nozzle. Do you feel warmth at the front where the fan is sucking in? I'm thinking possibly the ignitor is weak and not igniting the propane? I can definitely smell the propane and the ignitor is definitely glowing completely red. It's just not wanting to run. I can't really feel any heat. Any advice? Do u think the ignitor is just too weak to ignite the propane?
If it is glowing red, I would think it is hot enough, but I suppose that is possible. One thing to try to start it with the plastic off. The metal will absolutely be warm to the touch if it is running. You said you cleaned everything, but have you tried blowing out the catalytic converter (the tube inside the metal housing at 13:53)? If that is clogged, or not really reacting due to contaminates, it could be hampering the unit from getting hot enough. These are absolutely finicky machines, which is unfortunate given how effective they are when working. Good luck and feel free to send updates or further questions!
@@DavinDesborough Yes I have tried starting with the plastic off and on. Ive tried feeling the metal housing and I dont really feel any heat at all. It never gets to the solid red light though. So something is not allowing it to start. It doesnt seem like the propane is igniting, or its not staying lit long enough to feel heat. Maybe the thermister is shutting it down pretty fast before it heats up? I was checking the ohm resistance on my thermister and it was at like 250 k ohm I believe . Is that normal? Do you know what your ohm reading is on your working thermister? Yes I did take apart the metal housing and cleaned up the cata converter. I didnt see any blockages or debris in there. I blew it out but not with a compressor, just with my mouth. I scrubbed the metal parts a bit as there were some build up but not much. To give you an idea, my thermister was quite clean when I pulled it out, nothing like yours was, so the internals werent very dirty. I have no idea why its not starting, everything looks good, the igniter lights up, the propane flows, the thermister "works" and it registers heat. I dont really know if maybe the resistance is too high and not meeting the requirements, or maybe the igniter is not getting hot enough to ignite the propane. I am stumped... Ive checked and done everything in your video and all the components seem to be working
@@Interrogreat If you tested like I did at 28:40 then the gas side of the equation seems OK. We still have snow, so I have not done the maintenance on my trap yet. I will do some tests on the thermistor when I take it apart this spring. I believe they are generally specified at 25 Celsius (so roughly room temperature) and 250k would be a reasonable value. I would also measure resistance at the pads on the back of the connector where the thermistor plugs in. The value may be a bit different as it will be in circuit, but should be in the same general range. While there, look for any corrosion on the board, especially around the solder pads of any of the chips. Clean with isopropyl alcohol if you see any grunge.
I would guess the thermistor might be going. Overnight the air cools and it's possibly bringing the temp of the unit down below the cutoff point. That or perhaps the cooler air lowers the propane pressure just enough to not make it through a partially clogged jet. I am just guessing though. Try taking it apart and cleaning it up. In general, that is what does it for me. Good luck!
Correct. By burning propane it produces heat and CO2 to make it look like an animal to mosquitos. When they get too close, they get sucked up by the vacuum and caught in the basket. See my other videos: ua-cam.com/play/PLT2XaZh26IOyYksUGyedUyv2wfEKgdkWe.html
I had that happen too. I used a little high temp rtv silicone to "glue" it in. Just put some under and over the tab. It will hold it and you can pull it out later if need be. If you did manage to clean out the rest of the plastic and put a metal screw, it would probably fuse to the housing over time due to galvanic corrosion (happens when different metals are used). Good luck!
Well, we have replaced the fuel filter, cleaned (sanded off) both the ignitor and thermo coupler. Fired it up yesterday, and it worked for about 6 hrs🤷We were not able to open the catalytic converter as the screws would not release🤷 Any other suggestions?
Sorry, but I don't know precisely what species of mosquitos we have here. That said, I imagine it would catch the females of all mosquito varieties as they are seeking food in the same manner.
@@DavinDesborough The “Asian tiger mosquito” is now an invasive species in southern Europe, Florida and southern California. You can Google it. It is particularly difficult to trick them into falling in a mosquito trap, I don’t know exactly why. I’ve been looking in social media for confirmation that a system will work on this particular species, but despite manufacturers claims, I have never found any
It is really just the act of forcing air through. If you have an air compressor, you could use it. It wont have as much force, but it may still work. From what I read, those cartridges have an initial PSI of around 800 (or more), so your average home user compressor will be well under that. The only question is if they are actually too weak. I am going to have to try this out now.
@@alainnadeau3421 Will do. Note that you can by any threaded cartridge, it does not need to be from MM. Something like this will work just fine: amzn.to/3w9BsZa.
Hey, I've just picked up an executive model and after about 5 hours it shuts off (not set to turn off either time/temperature) and if I try to restart it shows the battery has died. I've cleaned it, replaced the battery, new gas, co2, everything I can think of but no joy, not showing any errors. Any idea? TIA
If it will always run for about 5 hours and then stop with a low battery warning, then I will have to guess that the thermoelectric generator (TEG) is not supplying power back to the machine. That would mean it is running on only batteries, which quick run out. If you pause my Independence video at about 13:32 (ua-cam.com/video/VzFwGImwR5k/v-deo.html), you can see the TEG on the large heatsink in my right hand. I assume the Executive will have something similar. With all that said, all I can think to do would be to try and measure the voltage it is sending when the unit is running and hot. I don't know what the voltage is supposed to be or where you would get a new one. I mean, you can get one from Amazon (amzn.to/43kv0PD), but I don't know what the right size or voltage would be. Try to find some marking on the one in your machine and see what you can find searching on that. Again, this is all just a guess. Good luck!
Sorry, the fact that you said "I've just picked up an executive model" just jumped out at me. If you just purchased it, try returning it for a new one. If your have picked it up second-hand, then see my other comment. :-)
I have the mosquito magnet patriot plus and it starting blinking fast. We narrowed it down to the thermocouple/ thermistor. Contacted the manufacturer and they said they do not sell this item and that I would have to send it off to be replaced for $110.00. Do you know were I could order this item from? Awesome video
Thermistor assembly is repairable. See diyideasandthought.blogspot.com/2014/12/mosquito-magnet-defender-repair.html You can also find these on ebay. Look for thermistor, 200 kohms, NTC.
Only had mine one season , took it in for the Winter, installed for new season and now have the red fast flasher, for the cost they should perform much longer, very disappointing.
Yes, the engineering seems a bit brittle. I just had to work on mine again. I was running fine all through the spring, but when I changed the propane, it refused to start. Took it apart and blew out all the dead bugs and spider webs, cleaned the corrosion off the metal probe for the thermocouple, and it fired right back up.
Amen. The unit is awful. It works great when it's running, but that is rare after the first season. Pulls 'em in...stops running in less than 24 hours and right back out they go. After year one it's more like a short term Mosquito Hangout location.
@@DavinDesborough I think it’s the Independence model. It is 5+ years old. Last summer I could use the battery for a month and now for 12-24 hours. The battery is brand new. Is it only the fan that needs electricity?
@@leifberglund4668 I believe I might be experiencing the same issue with my Independence. I am going to be troubleshooting it soon, I will report back on what I find. I think the unit is resetting and constantly restarting, thus eating the batteries.
@@DavinDesborough I see forward to hear from you again. I can’t see that the unit is restarting. I wonder if the fan need some oil. Or is it something more that uses electricity? I live in Sweden 70 kilometres north Stockholm in the countryside near the Baltic Sea. Just now we have a lot of mosquitos. More than I can remember.
@@leifberglund4668 The fan is the same sort you'd find in a computer. No oiling it. It most likely has sealed bearings. There is a thermoelectric generator (TEG) pad between the combustion chamber and the heat sink. My guess is that is supposed to help keep the unit powered as long as it is hot. It won't generate 100% of the needed electricity, but probably enough to significantly extend the battery life. My theory is that the TEG is no longer providing electricity. It is going to take some time for me to test this out, but I'll write back when I do.
Sorry, this was caught in the UA-cam spam filter. I would try to measure the voltage at the end of the cable to make sure the power supply brick is still working. If that is good, then you have something potentially more serious wrong inside the device. It would take some careful probing with a multimeter to see where voltage is flowing and what might be dead. Hopefully it is just the power supply.
I did every test you did in this video. Evrything has the same outcome as yours. The insides actually aren't as bad as this one in the video. It gets to the end of the 15 minutes time and blinks fast again. I don't get it.
Leave the top off of it and try starting it. Does the metal warm up? If so, it is starting fine, but not detecting the heat. Sand the metal probe to get all corrosion off of it. If that still does not help, check to be sure the wire has not come loose at the circuit board
Hey Dave thank you for all your wonderful videos about the mosquito magnet. Since I've watched your videos I've decided not to get the mosquito magnet because it looks like a piece of junk that always needs work and it cost too much money. There's got to be better alternatives than this mosquito magnet that always cost a lot of money he always breaks down no thank you
I wanted to put a truthful owners experience out there. When they work, they work great. But they take work to keep running. The main reason I stick with it is that it is very selective and only catches mosquitos. Other traps seem to capture too many bug species. In any case, I am glad they helped you to form an opinion, good, bad or otherwise.
This unit works well but is such a bad design for durability. Worked great first year, put it away in basement for Winter, brought out the following year and would not ignite. Sent back under warranty, by the time I got it back Mosquito season was over and didnt get much use out of it so back in storage it goes. Took it out to fire it up last week and again wont ignite. Piece of shit.
They are fiddly for sure. I usually need to clean mine out and sand off the thermistor probe at the start of the season to get it to stay running. Had they invested a bit more into parts and design, they would be fabulous.
Thank you so much for your complete tutorial! The last two years our machine hasn't been working properly, and now we know why and my son and I fixed it.
Great to hear! Thanks for letting me know, it keeps me motivated to make more videos.
@@DavinDesborough yes, keep at it, I'm an engineer but I always try find a service manual and if that fails, people like you on UA-cam are my friends.
@@Wardyworlds engineers design things, technicians fix their mistakes
Wow, you just saved me 700EUR. I cleaned the thermocouple and it worked again!! Thank you so much!
Glad to hear it helped!
Thank you for doing this. I have two of these & one needed a new heater. The other failed this year and the heater is working. I'll have at it as you did. Thanks for breaking the ground so I don't have to reinvent the wheel.
Good luck!
@@DavinDesborough Thanks. Job done. I split the halves of the engine and it was packed full of crud which I dremeled out. The ignitor was actually working so I left it in. The gas jet was plugged up so I took that apart and cleaned it out. For some reason the propane tank valve didn't release so I switched tanks and this one was fine. I used deoxit on all the electrical contacts to keep corrosion down & Put a strip of tape over each of the four case screw holes as mud dobbers had packed the slots with crud. When reassembled it started in a very few minutes.
After seeing how it's done I'll just do a cleaning every winter and have it good as new for each spring. Thanks again!
@@XJ1100J Awesome! And, yes, just plan on an annual cleaning and you'll be good. It's worked for me anyway.
You gave me the confidence to take mine apart and fix it. Had some corrosion issues, works like new now. Thank you!
Thanks for letting me know! I'm glad it worked for you!
If this gadget comes to sale in india, the owner will be a billionaire with in no time.
Make it in India and become a billionaire
@@Oxycontin. exactly
This is made in China, its banned in india
I just thinking the same way. India needs these things badly . The original company or another one made it in india little bit cheaply so that we can afford it .I want to build one with little bit design changes . I have some small ideas , maybe I will use faul smelling Attar / perfume made from rotten fish etc . Instead of propane gas cylinder we can use biogas .
and what about in time?
Thanks for taking the time to publish this video. I had mine mostly apart and determined I needed a new igniter (which was also the error code). Your video gave me the confidence to fully disassemble, clean and inspect. I found the inside of the chamber corroded and the drain plugged, so I got it all cleaned up. I also bought some 8-32 nylon screws (from an electronics supplier) to hold the thermistor in place (which I found with the head broken off). It’s all back together and running fine. Note that I have an old Liberty model, where the igniter is soldered directly into the circuit board, so I cut the plug off the new unit and soldered it in.
Great to hear! Glad the video helped!
Really good video! I had a 2011 Patriot for 8 years. Took it apart, scraped the carbon out and a new igniter, working again. Fun to play with.
@meeya9129 Where did you get a replacement ignitor? Did you just use like a universal type of ignitor or was it a mosquito magnet specific ignitor?
This video saved my Mosquito Magnet and me a lot of money. My igniter crumbled when I removed it. Found another on Ebay for $29.00. My Chamber was also corroded and filled with Earwigs.
Awesome! Glad it helped and congrats of getting it fixed!
Followed every step of your video. Got it working!!! Thank you!!!
Great news! Glad it helped!
This is what I like about youtube I am ignorant of machine like this thanks for sharing each one teach one
Thanks! And I totally agree about UA-cam. I started creating videos to pay forward the knowledge I received from other creators. Glad you got something out of this. Have a great day!
Thank you for your time. The repair session was enligthing !!
Glad you liked it!
Thanks for tearing the whole thing down even though you probably could have stopped at the thermocoupler. I have a lot more confidence being able to troubleshoot easy to solve issues to keep mine up and running. I just spent $70 to have my jet cleaned.
Thanks for the compliment and good luck with your machine!
Thanks for the video!
Just bought a 2nd hand unit for 100€ in Finland. Looking into the probable malfunction before i even have my hands on the unit yet.
People like you make the world a better place, at least for us makers : )
Thank you! As a fellow maker, I try to give back what I can. Best of luck to you!
@@DavinDesborough checklist:
-heater is glowing
-solenoid is activating
-solenoid gas valve is really clean
-thermistor is reading ~150K ohms in room temp, ~30K ohms when heating with a jet torch for a bit - seems reasonable (running resistance should be around 5K ohms..?)
-propane is coming out(cannot light it with jet torch though, too high flow for that?).
Have you taken apart your gas jet? Does it have any other parts inside it besides the jet itself and a "copper mesh" - nothing under the mesh? Former models used to have some channeling made with a screw with a "mushroom" looking part that restricted the gas flow or something like that. The screw used to have a groove to be opened with a flathead screwdriver.
I only get the fast flashing red ledalthough everything looks good, only the gas flow is suspicious - although it looks exactly the same as yours when you light it up.
@@iikkakonola I have separated the jet from the mesh and there was nothing in there, or I didn't notice it if there was. If you try running it with the cover off, does the metal get appreciably hotter? Is so, then you have ignition, but it isn't getting the right signal from the thermistor. I'll need to change the tank on mine soon, and I'll try to get some readings from the thermistor when I do so we have something to compare.
Thanks for making this video very HELPFUL 👍🏼👍🏼.
Glad it was helpful! Good luck if you are about to work on yours.
Hi, I did a complete service on my Mosquito Magnet patriot Plus today. Your video has been very helpful. Thank you very much. I have a suggstion. In the back of the fire chamber t is a spring with an opening on each side. Use a flat screwdriver on each side and press out the spring. Best way to clean the chamber is to disassemble it frrom the chamber and then you are able to take all filters out. Clean the chamber for carbon, use a brush to clean the ffilters and clean the wall inside the chamber for carbon build up. Inside it used to build up a lot of carbon. I took out at least 100 gram carbon. Now my Mosquito Magnet Patriot is working like a charm.
Thanks for the feedback! I'll give that a look next time I have it open.
An excellent video. Interesting to see how simple this machine is. I cleaned mine ( chamber was pretty dirty ). Igniter switch and gas valve work but I still get red light. I am assuming it might be circuit board or heat sensor. Still testing but am very comfortable taking it apart and putting it back together after watching your video. Really do appreciate videos such as this one !
Glad it helped! As for the continued issue, take some sandpaper to the metal probe for the temp sensor. In my recent history, getting the oxidation off of that has made it fire up no problem.
Great video, hopefully mine Will run after doing these steps of maintenamce. Have done it a couple of years ago and it worled then. Thanks
Yes, this is essentially periodic maintenance. Good luck!
The little clean out port in the front that you screw in the co 2 can to blow the line out is just a tire valve. I just use my compressor and a air chuck.
Yes, I have started doing that too one I ran out of CO2 cartidges.
Thanks for the great video tutorial my man!!
Hope it helps! Good luck!
Thank you for making this video. I was having trouble finding one that showed the combuster being disassembled. Mine seems to be functioning fine but not catching any mosquitoes. Mosquito Magnet suggested taking it apart and cleaning it. They didn't mention corrosion but obviously that's probably what my problem is. I just wanted to see how much of a hassle it was going to be. Thank you also for not editing out the part when you discovered the connector had come undone. If it did come undone while you were working on it then it'll probably happen to me too. I'll now know to be watching out for it. Two thumbs up for a great video!!!
Thanks! I would recommend just taking out and cleaning the thermistor first. I think corrosion building up on that can effective keep the unit shut down by not letting the sensor get hot enough in the time allotted for startup. If the plastic screw breaks when you try to remove it, use high-temp silicone (eg for engines) to stick the thermistor back in. Just use it sparingly. Good luck!
@@DavinDesborough Mine comes on and seems to be running the way it's supposed to. The red light blinks on and off during warm up and then turns solid red after it's been on for a while. I let it run for two days and only caught five mosquitoes. All the screens look clean from the outside. That's why the Rep suggested taking it apart, including the combuster. I'm guessing the thermistor should be okay or I wouldn't get a solid red light. I'll let you know what I find when I have a chance to open it up. It's been in in storage for a long time so I wouldn't be surprised if it has a mouse nest inside the housing. Thanks again for the video, it's appreciated.
@@KX220R Mine was doing that. I recalled a video about cloths dryer screens plugging, mine held water and the cloths were taking way longer to dry. I scrubbed the screen with a soft brush and soapy water and the dryer worked fine after cleaning. So I tried it with the basket and side screen on the M M, and it worked better also.
Really good video. Thanks
Thank you for your video. I really appreciate it. When I first purchased this machine it worked just like you stated. The second year of operation was less reliable and required CO2 cartridges and a ridiculously expensive CO2 cartridge attachment to clean out the propane burning unit. From this point on the operation was sporadic and VERY frustrating. I also found that the mosquito magnet CO2 cartridges where expensive to purchase and it was suggested that every time I swapped out the propane tank, I was required to use a CO2 cartridge to clean out the working parts. I did this as per Mosquito Magnet instructions. All in all it cost me about $100 to $150 to run for the first season. This expense excludes the purchase of above mentioned equipment ie the cartridges and attachment. In year 3 (this year) I fired up my mosquito magnet and spent an entire day trying to get it running. As the warranty on this useless machine had expired after the first year I had no issue opening it up. After watching a few UA-cam videos I diagnosed a problematic "Thermistor" I believe this temperature probe regulates the internal temperature of the mosquito magnet and keeps it running. I went online to purchase a replacement part and found that there are no available parts for the mosquito magnet. The only item they allow to be sold online is the igniter part (on ebay) I called the mosquito magnet service people and was rudely informed that they do not have part numbers or are able to send me any parts at all. I was referred to a service center in Canada. Although Mosquito Magnet worked well for a year and caught basket loads of mosquito's the subsequent years year of operation were terrible. I paid $400 for something that has a shelf life of approximately a year to two years max. There is absolutely no customer service or parts available. I WOULD NOT BUY THIS PRODUCT. Its finicky and expensive to run! I will be posting this to other mosquito magnet youtube videos sites in order to warn other people of this gimmick. If anybody wants to purchase my broken mosquito magnet and resides in Ontario please let me know and maybe I'll be able to re coop some lost money:)
Yes, I have said this all along, when they work, they are great, but be prepared to work on them.
Asura 16 Gram CO2 Threaded Cartridges
Get a box of Asura 16 gram CO2 Threaded cartridges & a bike tire inflator tool. (FBA_CO2P-TP01) from Amazon.
Richard W's comment matches my experience almost exactly. I will say, that first year, it was unbelievable how many mosquitoes the unit caught. I was very impressed. Since I bought it in late spring, my warranty was still valid when it failed to start the next spring. I spent the second summer shipping the unit back and forth to Mosquito Magnet "for free". All summer...there is a new shorter warranty period when they send it back to you, but it didn't matter. I would literally get it back, follow the startup directions to a tee and watch that fast blinking red light after multiple attempts. Another trip to the UPS store....all summer and fall. I swear I think they just slapped a new label on it and sent right back to me each time. In the fall of the second summer I just gave up and decided to fix it myself. Here I am at the start of year 3. I've done everything you did prior to watching this video and have determined that it is the thermistor. If not, it's the circuit board. I was hoping to find a company for a replacement thermistor. If it's the circuit board I'm screwed. Mosquito Magnet would never sell you one of those.
It's a one year product folks. Don't take my word for it. Just do a little searching. If your handy, you bought a yearly task and likely some part replacements. If your not, budget for a new unit each year. Does anyone know of a reliable unit in competition with Mosquito Magnet?
@@matthewschneider5688 I have bat houses now. They are free and work very well:)
@@DavinDesborough Hi Davin, Thanks for the educational video! My case is similar to Richard W in that I think I need a new thermocouple/thermister for a my Patriot MM. The wire has come separate from the metal portion of the thermocouple/thermister and I'm not sure how to fasten (glue?) it back. Do you know where I might be able to acquire a thermocouple/thermister? Thanks much! John
Great video, thanks! Couple of design changes on mine - the solenoid has a circlip rather than a nut holding it on, and the thermocouple had a plastic sleeve insert insulating it from the main alloy body. (I wonder if this was to prevent sacrificial corrosion from the thermistor? No corrosion around it at all and it was fairly clean - unlike every video I've seen so far. Unit is a UK version and about 4 years old. The filter basket inside the injector does get very mucky - I used nail varnish remover which seemed to clear it up. Still not working, but getting there :)
Thanks for the details. Good luck getting it running.
I know this is an older video but I really like that screwdriver. Where can I get that set?
Also great video. I bought two used ones, one for us and one for my in-laws. I took them apart following your video and they work great. Thank you so much for making this.
Great to hear this helped! The screwdriver set is a Home Depot HDX brand, but I don't see it on the website, so they may not make it anymore.
Thanks for this. Considering buying this device, but I understand now that knowing how to maintain the thing is imperative. BTW, that's one giant mosquito you got flying by in the background (12:00).
It really works well and I would still recommend them if you don't mind taking them apart every couple years. I have not seen anything better to date. And yes, I am glad that mosquito, flew by instead of paying a visit. :-)
😂🤣
you need to buy octanol too, they fit inside a tube and that's where the magig happens. The unit burns propane to generate CO2 and heat to mimic an animal but they need the octomol so that the midge pinpoints the tube and gets sucked in.
Thanks for the amazing video. We followed your tutorial step by step and having cleaned all the parts and ensured it all works disassembled it still isn’t firing up and we’re getting the dreaded fast blinking light.
Does it get warm during the "starting" phase? If so, it is lighting up, but not registering the heat change. I need to further investigate replacing the thermistor, because I think that is the problem for many people.
@@DavinDesborough I'm having the same issue as above. Where can I find the thermocouple?
@@johnm9569 You won't find an official part. You'll need to get an axial thermistor (like this www.digikey.com/en/products/detail/littelfuse-inc./303JG1F/10261286) and mount it in the metal probe. The issue is what thermistor value to get? When I clean my trap this spring (been too busy thus far) I will take some measurements to try and figure that out. Sorry I can't provide more help now.
@DavinDesborough I just bought this from a person who said they used it once. I'm getting the red flash. The inside is spotless and looks brand new. The ignitor lights red hot, the nozzle produces gas after the click verified with a lighter, but it still turns off after about 15 min. I've cleaned everything and lightly sanded both the ignitor and the thermistor.
@@johnm9569 If you leave the plastic off, do you feel the metal getting hotter during those 15 minutes? If there is combustion, it will get warm to the touch.
Davin, outstanding video! Thanks so much for what you've done here. This trap kills bugs like nothing else, when it's working; so it's definitely worth learning how to do good upkeep on it.
I've had my trap for 3-4 years (**), and had to send it back three times for maintenance. (Last time, they sent me a replacement, refurbished unit.) Now, a year after the replacement, mine is down again. Very finicky device.
But with your video, I have plenty of hope that I can repair it myself. Going to give it a shot this week.
I've already taken out and cleaned the nozzle -- mine was black on the "filter" end with carbon buildup. I cleaned it pretty well with rubbing alcohol, and the quick clear cartridge seems to flow freely through it. But in the meantime, I noticed that it's very hard to find out what are the correct part numbers for replacement parts. Do you have a list of them? Or advice on how to identify them? I haven't found good resources. If you are able, I think it would be great to post a list of the most obvious parts: the nozzle, the thermister, the solenoid/valve... anything else?
First off, thank you and I wish you luck! As for replacement parts, that is indeed tough. MM seems to have tight control over them and limits them to dealers. You can find some things on ebay. The only part I have had to replace is an igniter, which you can find there. MY advice is to watch local listings or even keep an eye out on trash day as people tend to get fed up with these devices and get rid of them. If you are lucky, you could get another unit for free or cheap and use it for parts (or fix it up and have 2).
@@DavinDesborough You are fight about getting them cheap ;-) I got one at a flea market for $15 ;-) he said it would not start this year, I figured spare parts. Got it home and apart and it looked like they ran it without the basket in place, it was so full of bugs the fan could not spin. Out of the 4 I have it is the best one ;-)
Hello, I use this model, mosquitoes do not enter at all. What is the reason, help me Heat on the machine 45c.
Did you ever solve your issue?@@apiwatprajuabsook6065
I just had my patriot apart as well. I can see it igniting and the catalytic igniting inside, however it won’t stay lite. I cleaned the igniter and thermocouple. I’m wondering if I have a defective thermocouple as it won’t register enough heat to stay on?
Do have a part number for the thermocouple?
Second question. Is there any way of cleaning the brass gas tip? I’ve got a tip cleaner kit, but that hole is so small.
Once my propane tank for my grill had been slightly left open and mosquitos were all over it, I think they like the smell even without burning it
I have never heard of these devices before. Where are they available?
David Schmidt check home depot or canadian tire depend where u live
You can get them on Amazon: amzn.to/3lEDTgL, though they seem to be out of them now. I'd try again in the spring. Otherwise, you can always go to mostuitomagnet.com
@@DavinDesborough their website is down?
@@keoladacalio No, I just fat fingered the address. The correct URL is www.mosquitomagnet.com/
Ожидаем очередные видео с аппаратом 🔥🔥
Hi David, a follow-up to my earlier post today. Tried to clean, lightly sand a second time but I’m still getting the dreaded flashing red light. Also called the Mosquito Magnet hotline but representative stated they do not sell replacement parts. They offered me 15 % off the cost of a new replacement unit, or indicated I had to ship at my cost to one of there three service reps either in PEI, Manitoba or Saskatchewan to get it fixed An expensive proposition since I live in Ontario. All this to say I am not very impressed with customer support. Will try to give it another clean, or perhaps call one of the service centres to see if they can just ship the part I need. Thanks again.
This is the the bad side of the machine for sure. Is the machine getting warm at all during the tail end of the startup cycle? If so, then you have combustion and there is something wrong in the temp sensor. If it stays cold, then I would go back to the gas jet and soak it in some carb cleaner or something to make sure it isn't clogged. Best of luck!
Thank you for the video. What is the model of the igniter and where can one buy it?
I am not sure what the model number is. I can say you won't be able to get an official part as Mosquito Magnet does not sell replacement parts. You should be able to use something like this: www.amazon.com/SHP-MOS1-Mosquito-Magnet-Ignitor/dp/B0C4QFW972. A Google search will provide other sources for ignitors too. Good luck!
just for the record. There are no flames with these units. It's platinum-based catalytic process which is why the efficiency is over 99%. Carbon Dioxide, Water Vapor and heat.
Davin Thanks for the great video You mentioned a part number and where to get a thermocoupler. Can you give that info? Thanks again
Sorry for the late response. You won't be able to order one as the company does not sell parts to the public. I can not find my purchase from way back when. I have looked around and can not find anything either. Basically, you would just need to buy a bare thermistor and put it in. I need to take one apart again and try to determine what thermistor is being used (resistance/temperature). That said, have you tested yours with a multimeter? If you heat it up and the voltage changes, it is probably OK. I will point you to this video: ua-cam.com/video/60F9IkjqUVE/v-deo.html. I think his idea of securing it with a metal screw is a good one. It would help to bring more heat to the thermistor. the only down side would be the possibly of corrosion between dissimilar metals.
Very good video should there be a need to take this apart! I have recently purchased the same machine and I was surprised how low the vacuum was. To a point where I thought it must be broken. Unfortunately the whole of internet has not been able to answer my question. Should I feel any suction if I put my hand in front of the funnel?
There should be some air moving, but not not a strong vacuum. Apparently, mosquitos have a natural reaction to fly up when startled or trying to escape. That puts them right into the bell and they ride the airflow into the basket.
Just to be sure, check that the door to the basket is fully closed or that will cause airflow issues.
Side note for who it concerns, those igniters are EXTREMELY easy to break. Had torpedo heater that i was trying to fix and igniter was bit stuck, got it out but it snapped in process. Then tried to measure what kind of voltage board puts out, but moment i turn it on, mosfet exploded so it needs to have load on it, so consider this when trying to repair. In this case its low voltage while mine was 230v heater.
edit: got mine most likely fixed solenoid seemed to be bit stiff from storage, needed to take it apart. On 2013 model getting the peace sit properly is a pain and if i recall right you should never put grease on to help it slide, least certain types of grease. There should be products that works with natural gas though. I just carefully push it in place with parrot pliers being careful not to damage the O-ring. Cleaned the thermocouple and it seems to work now, gotta do more testing since i got this unit for free from E-waste pile. Also when you need to replace the gas line, see how it sits in place and when putting new one in place check it sits properly, mine got new line in old ends and sleeve didnt go trough the hole being bit larger so needed to remove some plastic to get it sit right. Otherwise the top wont sit properly same with unit internals and there is air flow issues. Mind replacing and sealing the airways so it can properly suck mosquitos in.
Thanks for contributing! Keeping these things running is a group project. 🙂
I have a Patriot model; after checking critical components like igniter and thermistor, finally down to gas solenoid valve; I injected 12 volts into its input wiring and heard a click, so assume it works. Looks like no 12 volts coming from board, and no continuity from board solder joints to output pins (for solenoid activation) so assuming corrosion on solder joints is the problem. This unit has been outside in the rain for ten years, and not sure how they would expect the electronics to function in such a harsh environment. Hope I am on the right track; will desolder and re-solder the board solder joints next.
What I think often happens is that the thermistor gets old or the probe is too covered in corrosion. Either way, the machines does not read the proper resistance and does not think it has started. What I like to do it try to run it. If it lights, the metal of the heat exchanger will warm up fairly fast. If you feel that warmth and then it still shuts off, it must be the thermistor (or the wiring related to it). I hope you got it working again. Sorry it took so long to respond.
This video is impressive! I just tried one 5 weeks ago. After following all the directions in setting up, the red flash was blinking fast. I returned it and was replaced. I followed the directions again...the red flash was steady and stayed for 2 weeks. Just 2 days ago, I noticed the red flash was blinking fast. I thought the propane gas was out so I replaced it with a new one. I installed it again but it is doing the same thing - the red flash was blinking fast. This is a brand new unit. Do you think there’s something wrong in the installation or it’s in the machine? Thanks
It's hard to think that there is anything wrong with how you assembled it or your environment (unless you live far, far north and it is still really cold overnight). I would call MM and see what they say. They will probably swap out the head of the unit as you have the issue on multiple propane tanks. Good luck!
Yes
You said you replaced the thermocouple before. Did you just use a generic universal one? Or did u manage to get a mosquito magnet one same one as came out? Or was it slightly different universal one that you replaced?
It was a long time ago.... I believe I found one on eBay or Amazon that was listed as compatible. Unfortunately I am not finding the order. One thing to note, it is actually a thermistor, not a thermocouple (I was wrong in the video). The part number is MM490016, but I have not found a current US seller. When I clean the machines this spring, I need to try and measure the ones I have to see what their ohm value is. Worst case, I plan to buy a "variety pack" of on Amazon and just try out different values. For example: amzn.to/3V2kgUW (affiliate link, does not cost you anything, supports the channel)
Just found a brand new liberty plus at a thrift store, only part I’m missing is the ac adapter to plug into the charge port on the back. Any idea what adapter would work?
That you can buy from the MM store. It has a proprietary connector on it. You might be able to find one used on eBay for cheap. Good find!
they need to make a smaller indoor version.
otherwise a nice idea, but creating this much CO2 indoors would end problems with mosquitoes in a way that people inside house are suffocated by morning : )
where do you find replacement parts? such as the solenoid? can't find online!
Other than the igniter, I have never needed a replacement part. From looking around, it seems they strictly control their replacement parts. You are, unfortunately, going to need to find suitable replacements on your own, or find a machine that someone is getting rid of and scavenge parts from it.
You need a long extension outdoor cord but for under 100 watts, I'd bury it for the mower blade avoidance.
I noticed you put it to work immediately after the repair. Did you use any Octenol bait in the bottom compartment or does the machine do just fine in attracting Mosquitos w/CO2 only? - Thanks.
I do run the Octenol as it seems to help. I bought a bunch of it during an off-season sale, so it does not cost me much. It will still work without it, but it seems like I catch more with it. Good luck!
Where to buy it from online ? Is it available on Amazon ? Also please let us know about its cost price and maintenance/running cost if any... Thanks in advance...
They have them on Amazon amzn.to/30YDv51. I think they are usually more available in the spring. You could also just go to company website: www.mosquitomagnet.com/mosquito-magnet-patriot-plus-mosquito-trap-mm4200b
Running cost is a tank of propane every few weeks. It uses a small amount of electricity too. If you want to lure more in, there is an optional attractant you can buy as well. Check the company website on that.
Thanks for watching!
Hi, this is very good video indeed. we are thinking of getting one. But there are a lot of negative reviews. Most of them said catching at beginning but not reliable over time. Some people said broken after 2 summers. We will be using this outside US, so we couldnt get service from Manufacturer. Just curious how reliable this is.
I would agree with the impression you have. They are great at the start, but will start acting up. I have three different models and they all take the sort of maintenance I show in this video (see the other videos in my channel). If this does not scare you off, then get one, because they work great when they are working. If you want something that is more of a dependable appliance, this isn't it.
Thanks for the compliment, and good luck!
@@DavinDesborough Sure mate! I'm quite handy. I can handle the maintenance. We are going to get one. Again, thanks for your advice. :)
@@BurmeseExplorer I agree with Davin. I absolutely love this trap when it's working, and it kills bugs by the truckload. BUT, it's a very finicky unit, and you should definitely expect to have to repair it once a year. Hope you're happy with it.
Kenneth Wilson Thnaks for tye advice. Just got one, and waiting for propane tank adapter. I am not afraid of maintenance. :)
@@BurmeseExplorer I truly hope you have had a good experience, but my hunch is that this year you will experience regret in having bought it. I am not trying to be mean. Believe me, I wish you the best, but if your experience is like most, you are on the verge of bitterness and resentment towards Mosquito Magnet.
For your sake, I hope I am wrong.
Hey man, I got a used mosquito magnet that isn't working, Ive checked EVERYTHING, ignitor lights up, thermistor is registering ohms and is going up and down depending on the heat if I blow warm air on it, thermistor is completely clean and new looking, propane is coming out nicely, gas orifice isn't blocked, solenoid clicks and opens gas, new propane tanks tried 2 different ones, everything is clean and seems to be working, but it's keep flashing fast red. I believe it's not actually igniting the propane. I don't really feel warmth at the front nozzle. Do you feel warmth at the front where the fan is sucking in? I'm thinking possibly the ignitor is weak and not igniting the propane? I can definitely smell the propane and the ignitor is definitely glowing completely red. It's just not wanting to run. I can't really feel any heat. Any advice? Do u think the ignitor is just too weak to ignite the propane?
If it is glowing red, I would think it is hot enough, but I suppose that is possible. One thing to try to start it with the plastic off. The metal will absolutely be warm to the touch if it is running. You said you cleaned everything, but have you tried blowing out the catalytic converter (the tube inside the metal housing at 13:53)? If that is clogged, or not really reacting due to contaminates, it could be hampering the unit from getting hot enough. These are absolutely finicky machines, which is unfortunate given how effective they are when working. Good luck and feel free to send updates or further questions!
@@DavinDesborough Yes I have tried starting with the plastic off and on. Ive tried feeling the metal housing and I dont really feel any heat at all. It never gets to the solid red light though. So something is not allowing it to start. It doesnt seem like the propane is igniting, or its not staying lit long enough to feel heat. Maybe the thermister is shutting it down pretty fast before it heats up? I was checking the ohm resistance on my thermister and it was at like 250 k ohm I believe . Is that normal? Do you know what your ohm reading is on your working thermister? Yes I did take apart the metal housing and cleaned up the cata converter. I didnt see any blockages or debris in there. I blew it out but not with a compressor, just with my mouth. I scrubbed the metal parts a bit as there were some build up but not much. To give you an idea, my thermister was quite clean when I pulled it out, nothing like yours was, so the internals werent very dirty. I have no idea why its not starting, everything looks good, the igniter lights up, the propane flows, the thermister "works" and it registers heat. I dont really know if maybe the resistance is too high and not meeting the requirements, or maybe the igniter is not getting hot enough to ignite the propane. I am stumped... Ive checked and done everything in your video and all the components seem to be working
@@Interrogreat If you tested like I did at 28:40 then the gas side of the equation seems OK. We still have snow, so I have not done the maintenance on my trap yet. I will do some tests on the thermistor when I take it apart this spring. I believe they are generally specified at 25 Celsius (so roughly room temperature) and 250k would be a reasonable value. I would also measure resistance at the pads on the back of the connector where the thermistor plugs in. The value may be a bit different as it will be in circuit, but should be in the same general range. While there, look for any corrosion on the board, especially around the solder pads of any of the chips. Clean with isopropyl alcohol if you see any grunge.
Any idea why mine starts but the next morning when I check it I get the fast flashing and don't collect many mosquitos which is unheard of in Alaska,
I would guess the thermistor might be going. Overnight the air cools and it's possibly bringing the temp of the unit down below the cutoff point. That or perhaps the cooler air lowers the propane pressure just enough to not make it through a partially clogged jet. I am just guessing though. Try taking it apart and cleaning it up. In general, that is what does it for me. Good luck!
@@DavinDesborough Thanks
so the propane switch was just unplugged from the board?
Not originally. I think I knocked it loose. Mostly it just needed a good cleaning.
How does it work?is it producing CO2 from the propane to lure them in?
Correct. By burning propane it produces heat and CO2 to make it look like an animal to mosquitos. When they get too close, they get sucked up by the vacuum and caught in the basket. See my other videos: ua-cam.com/play/PLT2XaZh26IOyYksUGyedUyv2wfEKgdkWe.html
@@DavinDesborough Hi there, thanks for the fast reply and links Much appreciated!
When we took the plastic screw out to clean the ignitor, the screw broke. Can we replace with a metal screw or does it have to be plastic🤷
I had that happen too. I used a little high temp rtv silicone to "glue" it in. Just put some under and over the tab. It will hold it and you can pull it out later if need be. If you did manage to clean out the rest of the plastic and put a metal screw, it would probably fuse to the housing over time due to galvanic corrosion (happens when different metals are used). Good luck!
Well, we have replaced the fuel filter, cleaned (sanded off) both the ignitor and thermo coupler. Fired it up yesterday, and it worked for about 6 hrs🤷We were not able to open the catalytic converter as the screws would not release🤷 Any other suggestions?
Damn can’t ship to my state
Does this work for “Aedes” tiger mosquitos? The ones you show do not look like that mosquito species
Sorry, but I don't know precisely what species of mosquitos we have here. That said, I imagine it would catch the females of all mosquito varieties as they are seeking food in the same manner.
@@DavinDesborough The “Asian tiger mosquito” is now an invasive species in southern Europe, Florida and southern California. You can Google it. It is particularly difficult to trick them into falling in a mosquito trap, I don’t know exactly why. I’ve been looking in social media for confirmation that a system will work on this particular species, but despite manufacturers claims, I have never found any
Can you recommend a co2 clean out method without having to buy the cartridges?
It is really just the act of forcing air through. If you have an air compressor, you could use it. It wont have as much force, but it may still work. From what I read, those cartridges have an initial PSI of around 800 (or more), so your average home user compressor will be well under that. The only question is if they are actually too weak. I am going to have to try this out now.
@@DavinDesborough plz keep me posted. The cartridges r getting expensive. Thx
@@alainnadeau3421 Will do. Note that you can by any threaded cartridge, it does not need to be from MM. Something like this will work just fine: amzn.to/3w9BsZa.
Hey, I've just picked up an executive model and after about 5 hours it shuts off (not set to turn off either time/temperature) and if I try to restart it shows the battery has died. I've cleaned it, replaced the battery, new gas, co2, everything I can think of but no joy, not showing any errors. Any idea? TIA
If it will always run for about 5 hours and then stop with a low battery warning, then I will have to guess that the thermoelectric generator (TEG) is not supplying power back to the machine. That would mean it is running on only batteries, which quick run out. If you pause my Independence video at about 13:32 (ua-cam.com/video/VzFwGImwR5k/v-deo.html), you can see the TEG on the large heatsink in my right hand. I assume the Executive will have something similar. With all that said, all I can think to do would be to try and measure the voltage it is sending when the unit is running and hot. I don't know what the voltage is supposed to be or where you would get a new one. I mean, you can get one from Amazon (amzn.to/43kv0PD), but I don't know what the right size or voltage would be. Try to find some marking on the one in your machine and see what you can find searching on that. Again, this is all just a guess. Good luck!
Sorry, the fact that you said "I've just picked up an executive model" just jumped out at me. If you just purchased it, try returning it for a new one. If your have picked it up second-hand, then see my other comment. :-)
@@DavinDesborough ah no, I meant 2nd hand! Thanks for the advice though, I'll check it out.
@@DavinDesborough hey, I replaced the TEG but no joy, same issue. Any other advice? Cheers.
how exactly does it trap the mosquitoes? if they can fly in, what prevents them from flying out?
I think it works like a vaccum......
@@siccbastard4580 how?
@@BattousaiHBr idk I just guessed it would suck the mosquitoes
@@siccbastard4580 but that doesn't tell me how they are kept inside of it after fuel runs out, a vacuum would need to be sustained
@@BattousaiHBr ummmm......... they die?
Most of them?
......perhaps?
do they work on flies?
No. They are specifically designed for mosquitos.
I have the mosquito magnet patriot plus and it starting blinking fast. We narrowed it down to the thermocouple/ thermistor. Contacted the manufacturer and they said they do not sell this item and that I would have to send it off to be replaced for $110.00. Do you know were I could order this item from? Awesome video
Thermistor assembly is repairable. See diyideasandthought.blogspot.com/2014/12/mosquito-magnet-defender-repair.html You can also find these on ebay. Look for thermistor, 200 kohms, NTC.
Thanks for the link!
Only had mine one season , took it in for the Winter, installed for new season and now have the red fast flasher, for the cost they should perform much longer, very disappointing.
Yes, the engineering seems a bit brittle. I just had to work on mine again. I was running fine all through the spring, but when I changed the propane, it refused to start. Took it apart and blew out all the dead bugs and spider webs, cleaned the corrosion off the metal probe for the thermocouple, and it fired right back up.
Amen. The unit is awful. It works great when it's running, but that is rare after the first season. Pulls 'em in...stops running in less than 24 hours and right back out they go. After year one it's more like a short term Mosquito Hangout location.
What can be wrong? My battery only works for a day or couple of days. I have bought a new battery but it still works just a short time.
What model trap do you have? The Patriot Plus does not use a battery. Also, what code is the machine showing? Or is it just dead?
@@DavinDesborough I think it’s the Independence model. It is 5+ years old. Last summer I could use the battery for a month and now for 12-24 hours. The battery is brand new. Is it only the fan that needs electricity?
@@leifberglund4668 I believe I might be experiencing the same issue with my Independence. I am going to be troubleshooting it soon, I will report back on what I find. I think the unit is resetting and constantly restarting, thus eating the batteries.
@@DavinDesborough I see forward to hear from you again. I can’t see that the unit is restarting. I wonder if the fan need some oil. Or is it something more that uses electricity? I live in Sweden 70 kilometres north Stockholm in the countryside near the Baltic Sea. Just now we have a lot of mosquitos. More than I can remember.
@@leifberglund4668 The fan is the same sort you'd find in a computer. No oiling it. It most likely has sealed bearings. There is a thermoelectric generator (TEG) pad between the combustion chamber and the heat sink. My guess is that is supposed to help keep the unit powered as long as it is hot. It won't generate 100% of the needed electricity, but probably enough to significantly extend the battery life. My theory is that the TEG is no longer providing electricity. It is going to take some time for me to test this out, but I'll write back when I do.
Mine doesn't even power up. No red light whatsoever. Anyone know why?
Sorry, this was caught in the UA-cam spam filter. I would try to measure the voltage at the end of the cable to make sure the power supply brick is still working. If that is good, then you have something potentially more serious wrong inside the device. It would take some careful probing with a multimeter to see where voltage is flowing and what might be dead. Hopefully it is just the power supply.
@@DavinDesborough I found out that it was the power supply thanks.
I did every test you did in this video. Evrything has the same outcome as yours. The insides actually aren't as bad as this one in the video. It gets to the end of the 15 minutes time and blinks fast again. I don't get it.
Leave the top off of it and try starting it. Does the metal warm up? If so, it is starting fine, but not detecting the heat. Sand the metal probe to get all corrosion off of it. If that still does not help, check to be sure the wire has not come loose at the circuit board
Love ☝️☑️👉👏👍👌📱
Hey Dave thank you for all your wonderful videos about the mosquito magnet. Since I've watched your videos I've decided not to get the mosquito magnet because it looks like a piece of junk that always needs work and it cost too much money. There's got to be better alternatives than this mosquito magnet that always cost a lot of money he always breaks down no thank you
I wanted to put a truthful owners experience out there. When they work, they work great. But they take work to keep running. The main reason I stick with it is that it is very selective and only catches mosquitos. Other traps seem to capture too many bug species. In any case, I am glad they helped you to form an opinion, good, bad or otherwise.
@Dave's Not Here Man These machines are not set and forget, that is for sure. Good luck!
Hello, I use this model, mosquitoes do not enter at all. What is the reason, help me Heat on the machine 45c.
This unit works well but is such a bad design for durability. Worked great first year, put it away in basement for Winter, brought out the following year and would not ignite. Sent back under warranty, by the time I got it back Mosquito season was over and didnt get much use out of it so back in storage it goes. Took it out to fire it up last week and again wont ignite. Piece of shit.
They are fiddly for sure. I usually need to clean mine out and sand off the thermistor probe at the start of the season to get it to stay running. Had they invested a bit more into parts and design, they would be fabulous.
Bill gates wants your location. 😀 He worked hard to gm mosquito to kill (depopulation).