That board is the spwm genarator & it creates the signal which turns on & off the mosfets in the h bridge to generate the ac voltage from 300v dc . U can get these boards everywhere they are standard on all pure sine inverter with a construction like this.
Even though it's an inexpensive unit, it should actually work to spec w/o the buyer having to repair it every time it's turned on. Lucky for us it was you and not someone who'd just send it back.
Nice having the right equipment to use in hand. Been wanting a Thermo Cam for a long time. Never did anything about it. Best I could do on that one would be Freeze Spray.
Maybe you can buy a cheaper IR camera for your phone? The one in this video is now around $160 with the coupon code. It's very useful for engines, electrical panels, etc. Thanks for watching!
Excellent video ! A standard 120VAC outlet should never have a load higher than 15A continuous. Not perfectly accurate, but that would be about 1,800W. 14 AWG wire would be appropriate for that load. The second outlet should have its own 14 AWG wire. These outlets should be labeled 15A maximum current. The barrier strip connection should use a 10 AWG wire for minimal voltage drop.
Finding out if they provide spare parts is something worth while. Even though it is a low cost unit, it's not like it was $49.99. They should be willing to at least sell you a replacement board. I think that chip is available though. Still, even if it is, they should still support this nearly 300 dollar device with replacement sub assemblies.
I looked up the IC, and only found 1 supplier in China. To make sure they're well matched, I'd replace all of them if one or two was faulty. I messaged the company to see if I can get a board and mosfets shipped to me. Thanks for watching!
the blown mosfet comment likely answered a question i asked WFCO. two months use (charging cell phone) on a brand new WF-5110r it failed, fault light no power at the inverter outlet. pass through fine. WFCO said call us, hmmm call the dealer of the rv they recommended after my detailed explanation
Thanks for going back and reviewing it. Nice follow up and diagnostics. Reliable company are usually pretty good about sending parts to fix the problem. They'd rather send parts than a new unit if they can help it. I've seen them almost completely replace anothers whole inverter except for the coils/transformers.
You've probably figured this out already since the video is a few months old, but the problem is almost certainly a shorted output FET, one or more of those 4 TO3's and not the control board. Try ohming them out. Once shorted the FET gate pulls a lot of current and heats up the driver IC. These normally sell for few dollars each if you get the Chinese ones off of eBay (which is likely what they used in this inverter anyway). With those output FETs matching isn't important as long as they are reasonably close in characteristics. I've repaired dozens of inverters like this one.
@@electronicsNmore I have several burnt fets on output, I looked up numbers and tried to find fets that would work in place of originals, would you by any chance know of fets that I could use in place of them?
If I designed the inverter, I wouldn't have told people it's OK to short the output. Rather than use a protection circuit, just use a 25 or 30A push button circuit breaker on the AC output. If I fix my unit or get a swap, I'm adding it. Thanks for watching!
@@electronicsNmore What's wrong with you. Just lie and save the $.02 of the wire like those cheapskates did. I mean, that's the norm, right Lie, cheat, scan, half-ass and all the other norms of greedy profiteers... No wonder it's going to hell in a hand basket...Grrrrr Is nothing sacred anymore?
All inverters I have opened up have been either the N-channel Mosfet, transistors and such components. It is a lie that they explode or are noticeable. I just wanted to add it was this video that made me search threw entire board. All those need to come out to be tested and 😅😅😅no they don't explode or show signs of failure in most cases.
Thank you for sharing this, I have a 3,500 watt inverter and I wanted to replace a couple of MOSFETs . The part number of my inverter is FB38N20D P038D and I found one on Amazon with part number FB38N20D P826D, could I use these or are they a different number all together?
its your egs002 driver board. That driver drives the fets on the heat sink. There could still be an output fet blown and nothing wrong with the driver board that is showing the hotspot.
Hi Alan. I agree 100% about the MOSFET. I think there may be one or more damaged, along with the board. I'd have to test them before powering up with a new board. After I made the video, I allowed the unit to run a little longer, and the board started cooking. :-)
Right, Sillumin: "The SLM2110 is a high voltage, high speed power MOSFET and IGBT drivers with independent high and low-side referenced output channels." Not available from any of my usual sources, but probably if you were in Shenzhen you could find bins of them like candy.
@@Sylvan_dB Just buy a egs002 board from ali or just the chip. You would do well with a scope to check the driver switching. I have looked at many cct schematics for these boards and just a word of caution. some manufactures change the pinouts of this driver board just to make life more difficult
FLIR cameras are getting affordable. Back in the 90's I'd used a $50,000 thermal camera. Then upgraded to a Fluke Fusion that was significantly better but only cost $9,000. The camera you use doesn't offer very good resolution but it's still hard to believe it only costs $160.
Doug, what do you think of the build quality of this inverter? Such as how the components were soldered to the boards, if possible, the components themselves. Thanks! Great video!
Honest opinion, and not because I included a product link(You don't have to use it), For the money, it's a great deal, but do not try short circuiting the output unless you added a 25 or 30A push button circuit breaker. The circuit board is 2mm, which is thick, the copper on the board also appears to be decent thickness. The rear side of the board has very wide traces covered in solder, and all the wires appear to be copper, not copper plated aluminum. Soldering connections look fine. Glad you liked the video.
@@electronicsNmore I subbed to your channel because of your honesty. You could have been "shady" by not mentioning that you got the inverter from the company and could have not published the video after it failed, your subscribers would have not known. If I am not mistaken(saw this video a long time ago), there is a UA-camr named DavidPoz who had an issue with a Reliable inverter getting damaged when the trigger is released from a running a chop saw. Thanks for the reply. Keep up the great work!
Unlike many other popular channels(especially solar), that make videos for the purpose of selling products and give viewers the illusion they do it to be nice, I view all product sales as an "Added Bonus" to support my channel, because it's definitely underfunded for the amount of work I do. I don't make videos just to sell a product. People upload goof off videos and make thousands per week, meanwhile I help countless people save a lot of money, educate them, and get very little in return. People forget that YT is a FT job for me. The company must've made changes to handle the collapsing magnetic field from inductive devices. The 15A rated worm drive saw in the video had no problems, and I tested it several times. Thanks for watching!
Hello sir, I've got a POWEDRIVE 3000 that only puts out about 80 or so wats before cuts out, it's only 1.5 years old Any suggestions what could be the problem?
They have tried very hard to improve their products, while maintaining an affordable price, I am thinking I may buy one in a year or so, if they contenue to make improvements. Great video!
I like the inverter, but they shouldn't be telling people it can tolerate a short circuit on the output. If you buy one, add a 25 or 30A push button circuit breaker to the AC output, and replace the wire to the receptacle with #10. Glad you liked the video!
I love the detailed explanation and responses. I will definitely share and subscribe. I have the same inverter and I am wondering when I add my 25 and 30 amp breaker would you put that on the inside going to the outlet or run that from the outside of the input?
Stop the video at 2:54 you can see the red hot wire is attached to the outlet neutral leg, it then goes to the hot terminal tab. This creates a lot of avoidable damage to electronics and the unit.
A link is posted in the video description area. If you decide to buy using the link, you can try the 10% off code below. Thanks for watching! BGAFF10OFF
Good Evening... I got the same inverter... almost the same issue. See attached photo.. the upper right components are burnt... I was wonder if you send me a pic of the component numbers... hopefully I can find some online Dang. I can't send the pic
So 1/10 the voltage requires ten times the amperage to achieve the same wattage. Hence the thicker wire on output vs input. In an inverter, there's even more of a difference when you account for the inevitable losses caused by the electronic circuitry. This is why long range electrical transmission lines are stepped up to thousands of volts, so.tje I²R losses have a minimal effect.
...and 100W requires less than 0.9A at 120V, which is why the much thinner wire at the output doesn't inhibit current flow, which is my point..@@electronicsNmore
Yes. I thought of swapping out the IC, and testing each mosfet before powering it back up, but I can't find any suppliers for the IC. My older video below shows my station. Thanks for watching! ua-cam.com/video/YHc3f0nPEFo/v-deo.html
I have this same inverter but I was make different company but I have issues with it too I bought it on Amazon n get a replacement and the replacement can't run my shop vac without shut down and my previous inverter was a 2500 watt that could run everything in my entire house. XYZ INVT 3000W Pure Sine Wave Power Inverter right now I want to return it .
Great Video! I have a Reliable/WZRLB 12v 3000W Unit that I would be willing to pay someone within reason to repair. They offered to send me all the parts to repair it for $35. It has 1 surface mount component that I am not really setup to fix. I bought it used and don't have the option to exchange or return it. I would like to get it going. I cannot find anyone in my area that repairs them. I would be willing to buy the parts from them cover all the shipping and whatever the cost to make it worth repairing for someone as long as it is reasonable. Great video. I see that several Mosfets have blown. Any takers.
Glad you liked the video. If you can't do it yourself, it's really not worth fixing. You may end up paying a person to do the job, and it still may not work. You'd lose not only the parts cost, but labor too.
@@electronicsNmore I feel confident I could replace the mosfets and the board that looks just like yours but there are a couple of surface mount caps that I don’t think can be done with a soldering iron. I have never tried to work with surface mount components but watched a video of a guy doing it and doesn’t look too hard but he had years of practice. I guess I will give it a shot as it is already broke.
I've had this happen to a 2000w and 3000w the 2000w is working just hmmmm the 3000w one keeps blowing up replaced everything not happy mate as they wouldn't do anything to help me fix it shame on them good luck mate
BRAIN WAVE ! Seeing as you are going to be doing some "re-wiring", I recommend using fine stranded, silicone insulated wire. You can buy this is short length on eBay. The fine strands means that the wire is very flexible. The silicon insulation also helps with the flexibility, but mire importantly it can handle high heat better than most other insulations.
I doubt they sent them. I tested out the mosfets and found 2 that were faulty. I replaced them, but there's still a problem. I need a new inverter board.
Thank you very much for the terrific video!
Glad you enjoyed it! Always a pleasure to have you visit my channel to watch my videos. Your support is much appreciated!
That board is the spwm genarator & it creates the signal which turns on & off the mosfets in the h bridge to generate the ac voltage from 300v dc . U can get these boards everywhere they are standard on all pure sine inverter with a construction like this.
NICE TROUBLE SHOOTING PILOT!👍
Hopefully the board, along with a mosfet inspection is the solution. Thanks for watching!
Thanks for this video. It's helped me troubleshoot an issue with one of these inverters. I would love to see the follow-up video showing the repair.
You're welcome Matt
The bad circuit board appears to be an EGS002. Very common inverter board. Available on eBay for under $10. Amazon about $30.
The company is sending a new board. I need to check the mosfets. They will send all the parts to me.
Even though it's an inexpensive unit, it should actually work to spec w/o the buyer having to repair it every time it's turned on. Lucky for us it was you and not someone who'd just send it back.
Agree. I've got some work to do, or an exchange to be made. 😀
Nice having the right equipment to use in hand. Been wanting a Thermo Cam for a long time. Never did anything about it. Best I could do on that one would be Freeze Spray.
Maybe you can buy a cheaper IR camera for your phone? The one in this video is now around $160 with the coupon code. It's very useful for engines, electrical panels, etc. Thanks for watching!
Can't wait to view the grand finale, and to then perhaps, make my final buy consideration! I appreciate your channel! Kudos...
If they don't send the repair parts, I'll have to invoke Plan B. 🤣
The board you pointed out going bad is a EGS002 inverter driver board. You can buy them on Ebay.
Thanks for the info Steve! I have all the other parts on hand. Once I get that board, I'll make a video showing the repair.
Excellent video !
A standard 120VAC outlet should never have a load higher than 15A continuous. Not perfectly accurate, but that would be about 1,800W. 14 AWG wire would be appropriate for that load. The second outlet should have its own 14 AWG wire. These outlets should be labeled 15A maximum current.
The barrier strip connection should use a 10 AWG wire for minimal voltage drop.
Looks like one 14ga wire for both. I'll be replacing with #10. Glad you liked the video!
Well now i know what inside the inverter.
A few transistors with a biggg Heatsink. 😄
I love your content 😍.
Glad you enjoy my videos! Please share. Thank you
Nice troubleshooting on your part. Hope that you get the unit working again....👍👍
I hope so too. Thanks for watching Steve!
Great job on figuring out the problem. Even better job knocking out both videos in one week.
Thank you!
Finding out if they provide spare parts is something worth while. Even though it is a low cost unit, it's not like it was $49.99. They should be willing to at least sell you a replacement board. I think that chip is available though. Still, even if it is, they should still support this nearly 300 dollar device with replacement sub assemblies.
I looked up the IC, and only found 1 supplier in China. To make sure they're well matched, I'd replace all of them if one or two was faulty. I messaged the company to see if I can get a board and mosfets shipped to me. Thanks for watching!
Your videos are awesome! The best I have ever seen!
Wow, thanks for the nice comment!
thank for the follow-up - hope you get a replacement board soon .
Thank you for this video, I've just bought one of these inverters, so this short circuit info is good to have.
the blown mosfet comment likely answered a question i asked WFCO. two months use (charging cell phone) on a brand new WF-5110r it failed, fault light no power at the inverter outlet. pass through fine. WFCO said call us, hmmm call the dealer of the rv they recommended after my detailed explanation
Thanks for going back and reviewing it. Nice follow up and diagnostics.
Reliable company are usually pretty good about sending parts to fix the problem. They'd rather send parts than a new unit if they can help it. I've seen them almost completely replace anothers whole inverter except for the coils/transformers.
You're welcome! Time will tell. I messaged them.
@@electronicsNmore may have missed it somewhere but did you get a response
You've probably figured this out already since the video is a few months old, but the problem is almost certainly a shorted output FET, one or more of those 4 TO3's and not the control board. Try ohming them out. Once shorted the FET gate pulls a lot of current and heats up the driver IC. These normally sell for few dollars each if you get the Chinese ones off of eBay (which is likely what they used in this inverter anyway). With those output FETs matching isn't important as long as they are reasonably close in characteristics. I've repaired dozens of inverters like this one.
All FET's removed and tested, only 2 faulty. They were replaced, still no good. Board also toast.
@@electronicsNmore I have several burnt fets on output, I looked up numbers and tried to find fets that would work in place of originals, would you by any chance know of fets that I could use in place of them?
@@electronicsNmore if even one fet fails the unit will not work?
Well, you obviously did something the company seems unable to do and that's troubleshoot their designs. Thanks for letting know what to avoid...
If I designed the inverter, I wouldn't have told people it's OK to short the output. Rather than use a protection circuit, just use a 25 or 30A push button circuit breaker on the AC output. If I fix my unit or get a swap, I'm adding it. Thanks for watching!
@@electronicsNmore What's wrong with you. Just lie and save the $.02 of the wire like those cheapskates did. I mean, that's the norm, right Lie, cheat, scan, half-ass and all the other norms of greedy profiteers... No wonder it's going to hell in a hand basket...Grrrrr Is nothing sacred anymore?
A shame how many companies exaggerate what their product can do.
Thank you for documenting this. Thumbs up.
My pleasure!
Right on. Good job pinpointing the issue.
Thanks for watching!
All inverters I have opened up have been either the N-channel Mosfet, transistors and such components.
It is a lie that they explode or are noticeable.
I just wanted to add it was this video that made me search threw entire board.
All those need to come out to be tested and 😅😅😅no they don't explode or show signs of failure in most cases.
Thank you for sharing this, I have a 3,500 watt inverter and I wanted to replace a couple of MOSFETs . The part number of my inverter is FB38N20D P038D and I found one on Amazon with part number FB38N20D P826D, could I use these or are they a different number all together?
its your egs002 driver board. That driver drives the fets on the heat sink. There could still be an output fet blown and nothing wrong with the driver board that is showing the hotspot.
Hi Alan. I agree 100% about the MOSFET. I think there may be one or more damaged, along with the board. I'd have to test them before powering up with a new board. After I made the video, I allowed the unit to run a little longer, and the board started cooking. :-)
Right, Sillumin: "The SLM2110 is a high voltage, high speed power MOSFET and IGBT drivers with independent high and low-side referenced output channels." Not available from any of my usual sources, but probably if you were in Shenzhen you could find bins of them like candy.
@@Sylvan_dB Just buy a egs002 board from ali or just the chip. You would do well with a scope to check the driver switching. I have looked at many cct schematics for these boards and just a word of caution. some manufactures change the pinouts of this driver board just to make life more difficult
FLIR cameras are getting affordable. Back in the 90's I'd used a $50,000 thermal camera. Then upgraded to a Fluke Fusion that was significantly better but only cost $9,000. The camera you use doesn't offer very good resolution but it's still hard to believe it only costs $160.
Yes, the resolution isn't high, but it's good enough to get the job done. Worth $160-$175 price range. Thanks for watching Andy!
Doug, what do you think of the build quality of this inverter? Such as how the components were soldered to the boards, if possible, the components themselves. Thanks! Great video!
Honest opinion, and not because I included a product link(You don't have to use it), For the money, it's a great deal, but do not try short circuiting the output unless you added a 25 or 30A push button circuit breaker. The circuit board is 2mm, which is thick, the copper on the board also appears to be decent thickness. The rear side of the board has very wide traces covered in solder, and all the wires appear to be copper, not copper plated aluminum. Soldering connections look fine. Glad you liked the video.
@@electronicsNmore I subbed to your channel because of your honesty. You could have been "shady" by not mentioning that you got the inverter from the company and could have not published the video after it failed, your subscribers would have not known. If I am not mistaken(saw this video a long time ago), there is a UA-camr named DavidPoz who had an issue with a Reliable inverter getting damaged when the trigger is released from a running a chop saw.
Thanks for the reply. Keep up the great work!
Unlike many other popular channels(especially solar), that make videos for the purpose of selling products and give viewers the illusion they do it to be nice, I view all product sales as an "Added Bonus" to support my channel, because it's definitely underfunded for the amount of work I do. I don't make videos just to sell a product. People upload goof off videos and make thousands per week, meanwhile I help countless people save a lot of money, educate them, and get very little in return. People forget that YT is a FT job for me. The company must've made changes to handle the collapsing magnetic field from inductive devices. The 15A rated worm drive saw in the video had no problems, and I tested it several times. Thanks for watching!
Hello sir,
I've got a POWEDRIVE 3000 that only puts out about 80 or so wats before cuts out, it's only 1.5 years old
Any suggestions what could be the problem?
Nice video. Was the inverter ever repaired? Do you know an inverter that has working short circuit protection?
Company never sent the parts.
Thank you for the follow up on this device. Liked,shared. All my best.
You're welcome Bobby! Stay safe.
Awesome. Thanks for the follow up and troubleshooting.
You're welcome! Thanks for watching
They have tried very hard to improve their products, while maintaining an affordable price, I am thinking I may buy one in a year or so, if they contenue to make improvements. Great video!
I like the inverter, but they shouldn't be telling people it can tolerate a short circuit on the output. If you buy one, add a 25 or 30A push button circuit breaker to the AC output, and replace the wire to the receptacle with #10. Glad you liked the video!
I love the detailed explanation and responses. I will definitely share and subscribe. I have the same inverter and I am wondering when I add my 25 and 30 amp breaker would you put that on the inside going to the outlet or run that from the outside of the input?
My 3500 watt inverter in my truck keeps changing the readout from 0 then 1284 under no load. It that a problem?
It still works
Faulty control board likely.
👑
Glad you liked the video Ace!
spwm driver busted. It is using the EG8010 chip. Very chip driver board.
I'd like to swap it out.
Stop the video at 2:54 you can see the red hot wire is attached to the outlet neutral leg, it then goes to the hot terminal tab. This creates a lot of avoidable damage to electronics and the unit.
What is your thermal camera name and type? It would be very suitable for me too that kind fault searching... .
A link is posted in the video description area. If you decide to buy using the link, you can try the 10% off code below. Thanks for watching!
BGAFF10OFF
Sometimes that board goes with the mosfet too. Another gentleman repaired one and he had to replace that board and the mosfets.
I suspect the board and one or more mosfets are damaged. I'll definitely test them before powering up.
Good Evening... I got the same inverter... almost the same issue.
See attached photo.. the upper right components are burnt... I was wonder if you send me a pic of the component numbers... hopefully I can find some online
Dang. I can't send the pic
Did your ever get this fixed?
Never sent parts.
@@electronicsNmore Damn shame. Appreciate the effort you put into it.
So 1/10 the voltage requires ten times the amperage to achieve the same wattage. Hence the thicker wire on output vs input.
In an inverter, there's even more of a difference when you account for the inevitable losses caused by the electronic circuitry.
This is why long range electrical transmission lines are stepped up to thousands of volts, so.tje I²R losses have a minimal effect.
Yes. a 100W output at 120V requires around 9.5A at 12V.
...and
100W requires less than 0.9A at 120V, which is why the much thinner wire at the output doesn't inhibit current flow, which is my point..@@electronicsNmore
Don't you have a SMD rework station?
Yes. I thought of swapping out the IC, and testing each mosfet before powering it back up, but I can't find any suppliers for the IC. My older video below shows my station. Thanks for watching!
ua-cam.com/video/YHc3f0nPEFo/v-deo.html
Ya I was thinking you should ad an outlet to the terminals for that test
I never thought of doing that. I figured each 15A receptacle had a 14ga wire.
I have this same inverter but I was make different company but I have issues with it too I bought it on Amazon n get a replacement and the replacement can't run my shop vac without shut down and my previous inverter was a 2500 watt that could run everything in my entire house. XYZ INVT 3000W Pure Sine Wave Power Inverter right now I want to return it .
Yes. In my review video I showed that it wouldn't power up my mitre saw.
@@electronicsNmore yea these inverter are the same exact built but they just changed the color of the shell n give their own Name
That is the drivers buy the 2 you will get it working
Hi why's does all inverters makes alot of noises
How To test the power capacitor
Great Video! I have a Reliable/WZRLB 12v 3000W Unit that I would be willing to pay someone within reason to repair. They offered to send me all the parts to repair it for $35. It has 1 surface mount component that I am not really setup to fix. I bought it used and don't have the option to exchange or return it. I would like to get it going. I cannot find anyone in my area that repairs them. I would be willing to buy the parts from them cover all the shipping and whatever the cost to make it worth repairing for someone as long as it is reasonable. Great video. I see that several Mosfets have blown. Any takers.
Glad you liked the video. If you can't do it yourself, it's really not worth fixing. You may end up paying a person to do the job, and it still may not work. You'd lose not only the parts cost, but labor too.
@@electronicsNmore I feel confident I could replace the mosfets and the board that looks just like yours but there are a couple of surface mount caps that I don’t think can be done with a soldering iron. I have never tried to work with surface mount components but watched a video of a guy doing it and doesn’t look too hard but he had years of practice. I guess I will give it a shot as it is already broke.
I've had this happen to a 2000w and 3000w the 2000w is working just hmmmm the 3000w one keeps blowing up replaced everything not happy mate as they wouldn't do anything to help me fix it shame on them good luck mate
BRAIN WAVE ! Seeing as you are going to be doing some "re-wiring", I recommend using fine stranded, silicone insulated wire. You can buy this is short length on eBay. The fine strands means that the wire is very flexible. The silicon insulation also helps with the flexibility, but mire importantly it can handle high heat better than most other insulations.
Yes, that's good stuff. Thanks for watching!
Still waiting on parts ?
I doubt they sent them. I tested out the mosfets and found 2 that were faulty. I replaced them, but there's still a problem. I need a new inverter board.
👍🌈👍🦋🔊🔊🔊🔊