Brother you just saved me a $200 service call, and gave me an excuse to get one of those nice app based thermostats. Plus it's my birthday today. It started off bad, but seeing that I saved at least $200, and learned a bit about my furnace, that's the best gift I've gotten all day.
I don't know ANYTHING about hvac..but recently had a recharge since i have a slight leak. I'm sure many have told you already but I just have to say, THANK YOU so much for all your videos. I've watched them to learn and understand what's going on so I can educate myself. You are doing the community such a service. You are concise, clear and don't spend your time wasted on technical jargon. IMO, that demonstrates how well you know and and understand what you do. Please don't ever stop sharing whatever you do, you are so absolutely appreciated by the community!
Wow! I can't believe what I've learned in less than one hour here. Thanks. I am an electrical and computer engineer, but until today, my central air system was just a big "black box" to me! Glad to have that cleared up.
OMG THANK YOU!! I tested the board numerous times, everything had power but the inducer didn't have power. Finally I found your video and jumped it using a paperclip and BOOM the furnace turned on and was making heat. Ordering a new thermostat now, thank you so much!
Jay, after replacing the control board didn't solve the no heat problem and numerous other checks using your vids, I verifieded with a paper clip at the furnace and then the thermostat that it is the thermostat that I replaced a few months ago either was bad then or more likely I didn't throw the breaker and ruined it. I have just ordered another Tstat. Thanks for all your help. You saved me again and never have had to spend the money on a teh visit
Man, you saved me! My thermostat was bad. Weird because I bought a honeywell cheapo several months ago. What happened is I turned on ac for the first time and heat seemed to come on and so did the compressor at the condenser. I turn off the thermostat and seemed like 7 to 8 minuets before it finally turned off. Anyway, I jumped red and yellow and boom , my ac is throwing cold air. I will be at home depot in the morning. Thanks man for this video and all your videos. I learned alot tonight.
So glad I found this video. I thought my contactor or short cycle relay was bad. After watching this and jumping the terminals I determined I had a bad t-stat. New batteries didn't fix it. New one installed today and everything works! Thanks for posting this.
Great video. Thanks much! As a suggestion, I would first start with red and green wire (fan) with the jumper since there is no timer or limit switch on that circuit. By using the red and yellow (A/C) you might turn on the timer/limit switch because the A/C compressor has a high and low side for pressure and possibly damage the A/C unit. If you activate the A/C timer/limit switch, the A/C unit may not operate until the time/limit switch times out.
Watched Several of his videos ... They are exceptionally informative in layman terms. His simple details on the videos leave little to question... My hats off to him! and thanks for saving me a wait and a service call.
Just wanted to say thank you. Ac went out on my 8 year old house. Replaced capacitor and contactor because they are the least expensive parts but unit wouldn’t kick on. Turns out had a bad ecobee thermostat I bought after building new home.
I am very appreciative....you deserve to be recognized for the help you offer....believe me without your video I would literally bake in my apartment....I live in Arizona and someone I live with took the cover from the thermostat so I would have to suffer the heat.....Yes crazy right? But that person only wants to see me suffer...and be hurt....or have to struggle....anyway enough about that! Your awesome and I just want you to know that I am so grateful and could never thank you enough! You are needed for your knowledge in this matter. Thank you! Thank you! Thank you!
Great job! You are a very good teacher. Explained the essential elements of the problem/solution in a easy to understand and concise manner. Thank you!
Thanks, Jay. Great video. It helped me to determine my thermostat is bad. I had a power outage this morning. When power was restored my ac fan came on blowing harder than usual. I turned the thermostat to off and the fan continued to run. Only after shutting off the circuit breaker did the fan stop. So I did your test using a coated paperclip and snipping off the coating at each end of the paperclip. I jumped from R to Y and turned breaker back on. Outside unit came on to cool. I have been a subscriber for months! Thank you for helping so many people such as myself.
You Sir are a blessing Thanks so much for sharing. A friend had her condenser fan making noise so we ordered a new one but shot some lube into the shaft and now it is quiet 2 days now. that was a diff vid of yours
Thanks for saving me from freezing, you are simply great. Everything you said worked as in your video, my heater is now running and the house is getting warm. If I understood right putting jumper wire between R and Rc will make both cool and heat work. Before I had the wire in Rc only and AC worked fine but heat didn't.
RC and RH are separated to accommodate systems that have two transformers. If you only have one transformer, you terminate to either one and have them jumped together. Most stats will have a factory jumper already installed as most systems have only one transformer.
One very important thing he forgot to mention is NOT TO JUMP "R" to "C" or be VERY careful not to touch the "R" to "C" as this will burn the fuse on the control board or trip the low voltage fuse inside the furnace. In most cases you will not even know you did this as it will not spark or anything. The fuse is like a car fuse that sits in a slot on the control board or sometimes a button on the housing where the control board sits.
R is usually the hot wire with 24 volts and C is the neutral wire, so if they touch it is like putting a wire from one hole in an outlet to another in the same outlet !! but because the voltage is 24 and not 110 or 220, it usually will not spark and not electrocute someone.
Yeah I just accidentally jumped R to C (red to blue in my case). Thanks for revealing the fuse in my furnace. Found it. Going to the auto shop tomorrow for a replacement 3A blade fuse.
Thank you for this great video (and series) Jay. My A/C wasn't starting up, so after some investigation I determined that the major components in the AC unit appeared to be fine but the contactor switch wasn't engaging. I viewed your video on the top ten reasons for that not working and landed here. I jumpered my thermostat and sure enough the contactor engaged and the unit started cooling so I knew with confidence that the thermostat was faulty. As a bonus I found an unused fifth wire running to my thermostat that I was able to connect to common on the furnace control board so that I could get a WiFi enabled replacement that didn't require batteries (it might even be the same Honeywell unit you have pictured in the video). I should also mentioned that the unit I replaced seemed otherwise fine - the display looked okay and the furnace fan was still blowing (I did replace the batteries as a cheap test anyway but it didn't help). So it would appear that a single system is capable of failure on a thermostat without the others necessarily being bad too. Thanks again - I loved being able to figure this out by myself without making a service call (or buying replacement parts at random to see if that might be the solution).
Glad to hear you were able to track down the problem and get it fixed! People like you are the best :) Many people would only watch one video for a couple minutes and then comment right away asking, "My AC doesn't turn on, what do I do?" You actually took the time to watch the needed videos and figure it out. Congrats on repairing it yourself! Next time around it will be easier ;) Thank you for commenting and sharing your experience!
Thank you again !!! You explained everything very simply on how to trouble shoot the thermostat , to eliminate the thermostat from the AC or the heating. I did this at my niece's house and found the problem was the thermostat . Thanks again !!!
Thanks for your explanation. I found this jumper wire by my air handler after an HVAC inspection. I thought something might had come loose, now I know they were probably using it to test it.
Thank you for your Videos. They have helped me out a lot. And no the video was straight forward, and not confusing at all. We DIY People appreciate your work.
U deserve more than words of million thanks... If I wanted to install a new ther... how difficult is it ? I never had to replace one b4 I got 4 wires, Red Green White n Yellow
My Symptom: Air Conditioning working fine with no Issues. But when I would turn on the heat I would get a wiring error on the Nest E103 W1. Note: the Compressor would short cycle in heat mode but not in cooling mode. After about 10 minutes of this I would get the crossed wrenches symbol on the Nest. This system has been working for 4 plus year prior to the error message. Love your AC videos! FYI I have a 5 Ton Trane handler and a Trane Model 4TWX8060A 1000CA Compressor. When I jumped the R1 and W1 to by-pass the Thermostat it blew the 5 amp fuse in the air handler. Not sure what I did wrong? However, once I got the fuse replaced I abandoned the thermostat by-pass test and re-did the R1, Blue Common, and W1 connections at the compressor and now all seems to be working. Thank you for all the helpful videos!!!
You are the best on how you explain the process of troubleshooting. I have question for you. One Smart termostat Nest was set to Heating. But the system turned on the AC during winter and caused the evaporator to freeze. For troubleahooting:- 1. Y1 is removed from the circuit board at furnace, and removed the Nest thermostat face. Y1 still connected on terminal plate of thermostate. And It read 24v on Y1 at furnace side while termostate is not even covered. If Y1 is removed from termostate terminal, it has no voltage down the Furnace side Y1. I believed the Y1 is getting power at terminal plate of thermostat. Which means RC was creating direct connection to Y1. What do you think?
Another excellent video but sadly nothing happened on jump. Have been going step by step at least I can rule out the thermostat. No fuse in sight, connector works when pushing in, have a Payne and no obvious or accessible float valve when I tried to check. The mystery continues thanks for sharing your expertise
Thank you so much! After watching three of your videos and following the trouble shooting suggestions I found: 1) we had an abandoned mouse nest in the outside A/C unit 2) our thermostat is faulty. I’m off to get a replacement now! Thank you again for saving me a ton of money and not having to make a service call!
So, replacing the thermostat made the outside unit start working again, but the air blowing through the vents still isn’t cold. :( Guess it’s time to call a repair guy?
@@kyla1828 My guess would be that the compressor outside is not coming on. Only the fan is running which makes it look like it's working normally. Perhaps a chewed wire or a bad capacitor? It is up to you though.. I have plenty of videos on the topic that you can use to track down the problem or it's time to call out a tech
There certainly are things that are much easier to understand, than they are to explain! You did a very fine job. (I even got it the first time, before the well summarized recap. Thank you for taking the tine to share!
What if you are going from an older 4 wire thermostat to a newer thermostat that specifies a green, fan wire? The new thermostat is the Honeywell 6580 that you showed on video. The HVAC is a Rheem
You sir are a wealth of knowledge! I'm subbed! I am having these issues at present and came across your channel and have been watching the videos you posted. My furnace just started short cycling recently and I am trying to troubleshoot it with out calling for repair but that option isn't off the table. I have a lennox elite g50uh. I don't have the on/off switch at the furnace so I have to trip the breaker. I cleaned the flame sensor though it really didn't look that dirty as compared to what the videos have shown it can look like but problem remains. I will replace it since it doesn't cost much and see if that fixes it. Blower fan starts, the igniter lights,, I get flame but it turns itself off. It either turns itself off quickly or turns on but stops shortly thereafter. I've wanted to replace the thermostat to something a bit more modern (and I'm not sure if this is the problem).
Thanks Pal. I have an 𝗢𝗟𝗗 Perfection furnace. Built like a tank, very simple. No heat so first I changed out the thermocouple, nope. Then checked out the transformer which was within spec. Next was the Baso switch, nada....I'm running out of stuff 𝙄 can do before I have to call a repairman. Didn't think the thermostat would be bad. But as a last ditch effort I checked it out per your video. 𝙎𝙪𝙘𝙘𝙚𝙨𝙨 !! the burners came on. Now to return the Baso switch and get a new thermostat.....𝙏𝙃𝘼𝙉𝙆𝙎!! Oh yes, 𝙇𝙞𝙠𝙚𝙙 𝙖𝙣𝙙 𝙎𝙪𝙗𝙨𝙘𝙧𝙞𝙗𝙚𝙙
Well done and thank you for that awesome tip. My unit is not working and your advice, gives me more time to consider options. Great safety comments too, really appreciate you!! I do have a question, my issue with my AC is I accidentally disconnected the wires from the outdoor unit to the sensor. And the wiring the installer did was to connect to the same outdoor safety switch that brings the line to the load. I can't find any advice on how to reconnect the sensor wires.
Thank you for the great video. I have a question with regard to the bypass. You mentioned that it is better to turn the furnace switch off After you find out if the thermostat is getting power to do the bypass. How can the motherboard gets power to turn on things if you switch the furnace off, am I missing something?
FYI, It just started getting warm and my A/C stopped cooling/working , the Cool temp was set to 83 and the current temp in house was 85. The fan in the house was working but I went outside to see if the compressor/fan were going but it was NOT. So, it was NOT being turned on by the thermostat ( or the fan/compressor/capacitors were bad ). So, I changed the batteries ( 2 AAs ) and then tried to turn on the Thermostat but it stayed in the OFF position no matter what the COOL or HEAT setting was. So I went to chatGPT AI and it said to press the RESET button on the thermostat ( using a small screwdriver to push into the reset hole ). Voila , the Thermostat re-booted and I was able to set the Cool temperature and startup the A/C. So, with a good DIY attitude and Jay you can fix things too !
Thanks for putting your info out there, helped me get my furnace going again, for zero dollars out of my pocket. Trouble shooting is the hard part. Swapping parts is easy.
Thank you Dude!! Just replace my thermostat and the technician did not do a by pass from R to RC and my AC turned on. The oil provider ROB here in NY is charging mr for 125 dollars diagnostics and 215 per hour of labor and plus for parts and blah blah blah!! I just did it my self bypassing..
love the video. There is no power to my thermostat after checking with a meter and all breakers are good. There is power to the outside condenser. Any ideas of what to check next? This is a split system heat pump.
I wish I could’ve seen this video before .. I remember I didn’t know what to do and i call an ac service.. but im glad i did subscribe to see all videos and learn more from a professional..
Hi again Madara! :) Thanks for subscribing and watching my videos! Hopefully from now on you will be able to fix all the problems yourself! With all the self-learning you are doing, I am sure you will figure out any future problems.
Jay, help! Today I noticed that he AC unit wouldn’t come on at all, so here are the steps I did: First, I took readings with my multimeter at the thermostat. 24 volts Then I checked outside at the contactor and I had 24 volts going in. Came back to the thermostat and thought it could be a broken thermostat. So I created a little jumper cable like you said (running red to yellow), and bingo! The AC unit came on. So this indicated that I may have a bad thermostat...then, I messed up. Even though the compressor and the fan came on, I still didn’t notice any air blowing out of the vents in the living space. So I thought, oh, I must have to connect the red to the green one (fan) and the yellow (AC) together. Then I thought, “well, I might as well connect blue, yellow, green, and red together.” So I twisted all of them together (but first I shut off the disconnect). Then I flipped the disconnect on and now I have nothing. And when I went back to separating them and putting them back into their designated spot in the thermostat now I got nothing. No voltage, and the thermostat is completely dead now. Now I don’t know where to go...perhaps I blew a fuse or something? Any words of wisdom?
Hey Nick! Sorry to hear about your troubles! It sounds like either your thermostat may be bad or perhaps weak batteries? It would have been okay if you wired G, R, and Y together.. But G is for fan, R is a hot wire (24v) and C is a common. By connecting R and C, a direct short is created. Most likely your 3 amp fuse is blown. It should be in the furnace control board. After you replace the fuse or reset the little 3 amp breaker, I would watch this video next as to why the blower is not coming on: ua-cam.com/video/JSgLGTAbDF8/v-deo.html
You should look up heat pump thermostat wiring since it seems like that's what you have. Here's a short summary: RC is power to cooling, RH is power to heating. These two are often jumpered together (internally or with a jumper), as if you only have one R terminal. O or B is for the reversing valve O or B is the common. Just look what color wire goes to C in the furnace to confirm. Y is cooling W is heat G is fan
You're right the RC/RH are jumpered together. I followed your advice and when I connected the R and the Y, the AC started running so I have a problem with my thermostat
Awesome video. It worked. Just one question and it's probably a stupid one. That's all I need to do until they can come fix the thermostat right? It's running now and will continue to run until I flip the switch. Is that a safe way to run it?
Jay, I need to test my thermostat because my thermostat is blank. I enjoy your videos and have learned a lot. My problem is I have a carrier thermostat-infinity. This thermostat doesn’t have the normal nomenclature it has ABCDS1S2. There is only four wires green,yellow,white,and red. I am afraid to use my multimeter since I don’t know which wire to touch.
Thank you so much I tried what you suggested, saved me a service call of $70.i installed a new thermostat.I didn't turn switch on back to gas or oil, I guess I shorted. Any ideas on a decent thermostat please. I bought a cheap 25 guess goofed lol
As long as it works, it doesn't really matter which one you get :) I personally like thermostats with less buttons. Unfortunately I don't have any recommendations for you though..
That was a good advice but I have a question for you my furnace keeps short cycling and never gets up to intended heat what should I look for and can I jumper this to bring house heat up
Thanks for sharing the info. The water leaked from the roof on my wall and the thermostat got wet. I thought the unit would start working after drying, but it didn't even after completely drying the unit. I changed the battery as well but it didn't turn on. Does that mean the thermostat has gone bad? The unit is "Honeywell VisionPRO 8000 Programmable Thermostat". Your comment is much appreciated.
My AC turns on and cools the house, but DOESN'T turn back on to cool the house again when it heats up again. Any idea what that can be from? Thank you for taking your time to read this and your videos are great!
Sounds like something is wrong with the thermostat. If it has batteries I would try replacing them first. If problem persists, then likely the thermostat is defective. Only way to check for sure would be to check voltages in the furnace with a meter.
@@WordofAdviceTV Thank you for the reply first off! I'm gonna swap out the batteries tonight and most likely purchase a new smart thermostat in the very near future.
Thank you for your vids - super helpful and appreciated. I have a problem with no power to my thermostat but power at the board. Happened last night during a rain storm - probably unrelated but not sure why it would just stop working like that. The breaker is fine and the board is getting power. Thermostat connection reading 27 volts at the board. I also checked if the the water pump was working or if the float tripped anything but it appears fine. Any suggestions on what else I should look into? Regardless, thank you for these vids. Really helps to understand 👍
Thank you so much for the video! I have no display on our thermostat which means I can't get our heat to come on obviously. The breaker seems okay however I simply cannot get any power to the thermostat? In your video you said once you use to jumper cable if nothing happens then you know it's not your thermostat. Not sure if I heard that wrong but wouldn't it be the opposite if nothing happens then something's definitely wrong with no power or display on thermostat? Thank you in advance and sorry for the inconvenience.
If you jumper R to W at the thermostat and the furnace turns on that means the thermostat is bad or the batteries are dead on it. If nothing happens, then the problem is in the furnace. The furnace is supposed to send 24 volts to the thermostat and maybe it is not doing that for some reason. Have you watched my Top 10 Furnace Problems video? That one has a lot of furnace problem scenarios. One of them may be what you are experiencing :)
I would like to say thank you. Your video was easy to understand and very informative. After following the steps you described i was able to determine that i had a faulty thermostat. Once again thank you.
Exactly what I was looking for; thanks, esp. for the excellent camera work. As a bonus, I get to buy a new toy: magnetic jumper; never knew that was a thing.
Rc 24v power from cooling tranformer R24v power fro heating transformer ycomperssor contacter y2 compressor conttacter stage 2 g fan e merfncy aux het rely lseds out put when set to em heat c 24v comon ..
Hello and thanks for the help! I need to bypass the 2 speed fan control with capillary on my ancient central air unit until the new switch arrives. Blue,black and red wires. Thank you
Before replacing the thermostat or something else check for obstructed drain water duct kicking the sensor off. Just remove the plug with 2 wires some where around the pvc tube. It may help
Thank you so much for your explanation! You saved me a service call at the very least and possibly being upsold into a new system. My confidence level has risen!
Great video....if you jumped the thermostat it works..so what is wrong then..is it your thermostat or something else? That is the issue I am having. My screen shows room temperature and nothing else...but when jump A.C. comes on. Should I change my thermostat?
If you have gas heat, you only jumper red to white as the white call will energize heat and the fan without green being jumped. Because gas heat fires the gas first while delaying the fan, the fan will be brought on by time delay. if you have a heat pump, wire red,green,yellow,orange....those four together will call for the indoor fan, the compressor and the reversing valve.
So if a thermostat isnt energizing G on the thermostat side. Can I bypass it by wiring G to C? Or do I have to jumper G to energize with cooling/heating respectively based on season?
Rob, thank you for adding your two cents. It was appreciated and I don’t have any emotional connection to whether you care about me or not… (like Others.)
I have a NEST upstairs and downstairs. Upstairs is an American standard Golds furnace and the heat has been working fine and the AC worked fine at the close of summer. I just had carpet installed upstairs and the installers turned the heat way up as they said it helps with the carpet settlement. It went up to about 77 degrees and we usually keep it at 70. They left at night and we turned on the AC since it was so hot and the fan came on but the compressor downstairs did not and does not even hum when trying to turn on. I did your measurements from the last video and the relay measured .8 ohms. Ordered a new relay anc cap and new relay measures 14 ohm and cp also good. My control board upstairs has a 5 v fuse but it is not blown? I have 28V going to red terminal; and white terminal going to the NEST. Back downstairs, I pulled leads off the relay and measure volts there when AC engaged on nest and I only get 10V??? If I measure leads upstairs where 28 v is, it is 24V. As you showed, I event used the unused pair of wires going from upstairs to downstairs relay and still only 10V downstairs. I can manually push in the relay and both the fan and the compressor come on???? I even tried swapping the NEST from downstairs with upstairs. 24v transformer tests good. MY NEST downstairs is wired different than upstairs but both have been working for over 8 years. Downstairs AV unit is different brand. Control board? Why did 5V fuse not blow when original relay shorted?
Great Video!! Before I tackle the Thermostat and Control Board. When I switch to fan only the blower does not come on. When I switch to Heat "Auto or On" the fan does not come on but the furnace is fired up and working. Fan may be on but really can't feel it. When I switch to AC and auto the blower works great. Does the blower have a different speed when in Heat mode? Seems it should be blowing more air into the house like when in AC mode. Thanks for a reply!!
Hi, your videos are super helpful. When I jumper AC at the control board the AC does turn on, but when I jumper at the thermostat only the fan kicks on. The outside unit does nothing. Based on what you said in the video this would suggest this is not a thermostat issue?
Your help with determining the thermostat wasn't faulty made me think it was probably a fuse in the furnace. Sure enough it was. It costed $1.69 for a fuse, rather than a service call that would have costed $50-$100.
Love your channel I just replaced my units battery and contactor it was working for a day but this morning I went to check on it because for some reason it was not turning on and there was a little wire that was broken so I reconnecting it but my air has yet to turn back on?
Great video. So for the nest I have it says I need a common wire. I bout the 24 v adapter. Plug the white n black into C and the white into R with the red wire too tight?
hello,I im glad to find your tech support,I have a ladyfriend who has a trane x401,from 06,there was a big thunderstorm in florida ,2 weeks ago,and the thermostat does not come on,no display,so I ordered one from ebay plugged it in,still no display,i did not ask her if the outside unit ,with the fan&motor came on anyway,there is a cut off switich on the wall,so i piulled out the copper fuse,put it back in,still no display,,,the wire in the thermostat has say,6 wires,,one of them is the hot wire& one is nutreal,does this cable go up to the attic,in a cutout box with a transformer to another cable to get the 24v needed for the thermostat,and go back to the breaker,,so is the problem on the circuit board in the main unit outside,is there a fuse or a reset button on this,thanks for any help on this,,dan diorio,,
Thank you for your very useful video series. I have a question for you, my Carrier AC stop working without notice, my thermostat is working. I checked capacitors and they look fine. The only thing I saw was that the LED light on the board is off. Could it be a bad board? Thank you in advance
Hey that's exactly what my situation is. I replaced the batteries & it appears to be working but no longer lights up. Did you ever get it figured out? My husband is off working & it's 87° inside my house right now!
thnak you so much for all your clear videos,you are actually helping lots of poor people,god bless you always my friend,cheersssss.......
Brother you just saved me a $200 service call, and gave me an excuse to get one of those nice app based thermostats. Plus it's my birthday today. It started off bad, but seeing that I saved at least $200, and learned a bit about my furnace, that's the best gift I've gotten all day.
Happy Birthday bro!!! :) Glad to hear the video helped you figure out the furnace problem and get it fixed! Enjoy the new thermostat and stay warm!
I don't know ANYTHING about hvac..but recently had a recharge since i have a slight leak. I'm sure many have told you already but I just have to say, THANK YOU so much for all your videos. I've watched them to learn and understand what's going on so I can educate myself. You are doing the community such a service. You are concise, clear and don't spend your time wasted on technical jargon. IMO, that demonstrates how well you know and and understand what you do. Please don't ever stop sharing whatever you do, you are so absolutely appreciated by the community!
lol that’s what I’m saying It’s green ground?
Dear Jojo, The technical jargon is still education.
Wow! I can't believe what I've learned in less than one hour here. Thanks. I am an electrical and computer engineer, but until today, my central air system was just a big "black box" to me! Glad to have that cleared up.
Dear Rick, Really? With your lofty credentials you were still dazed and daunted. I pitty the elders who may touch the *third rail!*
OMG THANK YOU!! I tested the board numerous times, everything had power but the inducer didn't have power. Finally I found your video and jumped it using a paperclip and BOOM the furnace turned on and was making heat. Ordering a new thermostat now, thank you so much!
Jay, after replacing the control board didn't solve the no heat problem and numerous other checks using your vids, I verifieded with a paper clip at the furnace and then the thermostat that it is the thermostat that I replaced a few months ago either was bad then or more likely I didn't throw the breaker and ruined it. I have just ordered another Tstat. Thanks for all your help. You saved me again and never have had to spend the money on a teh visit
Man, you saved me! My thermostat was bad. Weird because I bought a honeywell cheapo several months ago. What happened is I turned on ac for the first time and heat seemed to come on and so did the compressor at the condenser. I turn off the thermostat and seemed like 7 to 8 minuets before it finally turned off. Anyway, I jumped red and yellow and boom , my ac is throwing cold air. I will be at home depot in the morning. Thanks man for this video and all your videos. I learned alot tonight.
So glad I found this video. I thought my contactor or short cycle relay was bad. After watching this and jumping the terminals I determined I had a bad t-stat. New batteries didn't fix it. New one installed today and everything works!
Thanks for posting this.
PERFECT! EXACTLY what I was looking for! Our thermostat broke (new one won't be here for a few days) but our AC was fine! Just needed to turn it on!!!
Great video. Thanks much! As a suggestion, I would first start with red and green wire (fan) with the jumper since there is no timer or limit switch on that circuit. By using the red and yellow (A/C) you might turn on the timer/limit switch because the A/C compressor has a high and low side for pressure and possibly damage the A/C unit. If you activate the A/C timer/limit switch, the A/C unit may not operate until the time/limit switch times out.
Thank you my friend have no words to express how much I appreciate all of your help, you have saved me a lot of money.
Wishing you the best.
Watched Several of his videos ... They are exceptionally informative in layman terms. His simple details on the videos leave little to question... My hats off to him! and thanks for saving me a wait and a service call.
Just wanted to say thank you. Ac went out on my 8 year old house. Replaced capacitor and contactor because they are the least expensive parts but unit wouldn’t kick on. Turns out had a bad ecobee thermostat I bought after building new home.
I am very appreciative....you deserve to be recognized for the help you offer....believe me without your video I would literally bake in my apartment....I live in Arizona and someone I live with took the cover from the thermostat so I would have to suffer the heat.....Yes crazy right? But that person only wants to see me suffer...and be hurt....or have to struggle....anyway enough about that! Your awesome and I just want you to know that I am so grateful and could never thank you enough! You are needed for your knowledge in this matter. Thank you! Thank you! Thank you!
Great job! You are a very good teacher. Explained the essential elements of the problem/solution in a easy to understand and concise manner.
Thank you!
Thanks! Happy to hear you liked the video :)
Thanks, Jay. Great video. It helped me to determine my thermostat is bad. I had a power outage this morning. When power was restored my ac fan came on blowing harder than usual. I turned the thermostat to off and the fan continued to run. Only after shutting off the circuit breaker did the fan stop. So I did your test using a coated paperclip and snipping off the coating at each end of the paperclip. I jumped from R to Y and turned breaker back on. Outside unit came on to cool. I have been a subscriber for months! Thank you for helping so many people such as myself.
This channel has saved me so much money. Tip this guy!
You Sir are a blessing Thanks so much for sharing. A friend had her condenser fan making noise so we ordered a new one but shot some lube into the shaft and now it is quiet 2 days now. that was a diff vid of yours
Thanks for saving me from freezing, you are simply great. Everything you said worked as in your video, my heater is now running and the house is getting warm. If I understood right putting jumper wire between R and Rc will make both cool and heat work. Before I had the wire in Rc only and AC worked fine but heat didn't.
Happy to help! Yes, that is correct. Some thermostats have Rh as well. (power to heating). Glad to hear you got the heat going again! Stay warm! :)
RC and RH are separated to accommodate systems that have two transformers. If you only have one transformer, you terminate to either one and have them jumped together. Most stats will have a factory jumper already installed as most systems have only one transformer.
One very important thing he forgot to mention is NOT TO JUMP "R" to "C" or be VERY careful not to touch the "R" to "C" as this will burn the fuse on the control board or trip the low voltage fuse inside the furnace. In most cases you will not even know you did this as it will not spark or anything. The fuse is like a car fuse that sits in a slot on the control board or sometimes a button on the housing where the control board sits.
Excellent comment.
What color is "C"?
R is usually the hot wire with 24 volts and C is the neutral wire, so if they touch it is like putting a wire from one hole in an outlet to another in the same outlet !! but because the voltage is 24 and not 110 or 220, it usually will not spark and not electrocute someone.
Yeah I just accidentally jumped R to C (red to blue in my case).
Thanks for revealing the fuse in my furnace. Found it. Going to the auto shop tomorrow for a replacement 3A blade fuse.
I just jumped R and my entire board sparked and went blank…uggghhh
Thank you for this great video (and series) Jay. My A/C wasn't starting up, so after some investigation I determined that the major components in the AC unit appeared to be fine but the contactor switch wasn't engaging. I viewed your video on the top ten reasons for that not working and landed here. I jumpered my thermostat and sure enough the contactor engaged and the unit started cooling so I knew with confidence that the thermostat was faulty. As a bonus I found an unused fifth wire running to my thermostat that I was able to connect to common on the furnace control board so that I could get a WiFi enabled replacement that didn't require batteries (it might even be the same Honeywell unit you have pictured in the video). I should also mentioned that the unit I replaced seemed otherwise fine - the display looked okay and the furnace fan was still blowing (I did replace the batteries as a cheap test anyway but it didn't help). So it would appear that a single system is capable of failure on a thermostat without the others necessarily being bad too. Thanks again - I loved being able to figure this out by myself without making a service call (or buying replacement parts at random to see if that might be the solution).
Glad to hear you were able to track down the problem and get it fixed! People like you are the best :) Many people would only watch one video for a couple minutes and then comment right away asking, "My AC doesn't turn on, what do I do?" You actually took the time to watch the needed videos and figure it out. Congrats on repairing it yourself! Next time around it will be easier ;) Thank you for commenting and sharing your experience!
I have a Honeywell stat and have a jumper between r an e.g. or r and rc is that. Correct karl
@@WordofAdviceTV l
Thank you again !!! You explained everything very simply on how to trouble shoot the thermostat , to eliminate the thermostat from the AC or the heating. I did this at my niece's house and found the problem was the thermostat . Thanks again !!!
Thanks for your explanation. I found this jumper wire by my air handler after an HVAC inspection. I thought something might had come loose, now I know they were probably using it to test it.
Thank you for your Videos. They have helped me out a lot. And no the video was straight forward, and not confusing at all. We DIY People appreciate your work.
Thank you, sir. I learned a lot today. Keep doing good work. You're a great teacher.
U deserve more than words of million thanks... If I wanted to install a new ther... how difficult is it ? I never had to replace one b4 I got 4 wires, Red Green White n Yellow
My Symptom: Air Conditioning working fine with no Issues. But when I would turn on the heat I would get a wiring error on the Nest E103 W1. Note: the Compressor would short cycle in heat mode but not in cooling mode. After about 10 minutes of this I would get the crossed wrenches symbol on the Nest. This system has been working for 4 plus year prior to the error message.
Love your AC videos! FYI I have a 5 Ton Trane handler and a Trane Model 4TWX8060A 1000CA Compressor. When I jumped the R1 and W1 to by-pass the Thermostat it blew the 5 amp fuse in the air handler. Not sure what I did wrong? However, once I got the fuse replaced I abandoned the thermostat by-pass test and re-did the R1, Blue Common, and W1 connections at the compressor and now all seems to be working.
Thank you for all the helpful videos!!!
Thank you so much....I was with out a.c. I did this and it worked...Im changing the t-tat tomorrow
You are the best on how you explain the process of troubleshooting. I have question for you.
One Smart termostat Nest was set to Heating. But the system turned on the AC during winter and caused the evaporator to freeze.
For troubleahooting:-
1. Y1 is removed from the circuit board at furnace, and removed the Nest thermostat face. Y1 still connected on terminal plate of thermostate. And It read 24v on Y1 at furnace side while termostate is not even covered. If Y1 is removed from termostate terminal, it has no voltage down the Furnace side Y1.
I believed the Y1 is getting power at terminal plate of thermostat. Which means RC was creating direct connection to Y1.
What do you think?
This is Da' BOMB. Now i don't have to swelter while I'm waiting for our new thermostat to come in. Nice and cool in TN, USA - Thanks!
Another excellent video but sadly nothing happened on jump. Have been going step by step at least I can rule out the thermostat. No fuse in sight, connector works when pushing in, have a Payne and no obvious or accessible float valve when I tried to check. The mystery continues thanks for sharing your expertise
Thank you so much! After watching three of your videos and following the trouble shooting suggestions I found: 1) we had an abandoned mouse nest in the outside A/C unit
2) our thermostat is faulty. I’m off to get a replacement now!
Thank you again for saving me a ton of money and not having to make a service call!
Glad to hear my videos helped! Thank you for watching and commenting!
So, replacing the thermostat made the outside unit start working again, but the air blowing through the vents still isn’t cold. :( Guess it’s time to call a repair guy?
@@kyla1828 My guess would be that the compressor outside is not coming on. Only the fan is running which makes it look like it's working normally. Perhaps a chewed wire or a bad capacitor? It is up to you though.. I have plenty of videos on the topic that you can use to track down the problem or it's time to call out a tech
There certainly are things that are much easier to understand, than they are to explain! You did a very fine job. (I even got it the first time, before the well summarized recap. Thank you for taking the tine to share!
Thanks Man, trying to be an
HVAC Technician!
Great Video! Thanks a lot. I tried jump start and air conditioner is started. Replaced Honeywell thermostat. Saved lot of time and money!!
Awesome! Glad to hear the thermostat bypass helped you pinpoint the problem! Thank you for coming back and commenting, stay cool! :)
What if you are going from an older 4 wire thermostat to a newer thermostat that specifies a green, fan wire? The new thermostat is the Honeywell 6580 that you showed on video. The HVAC is a Rheem
You sir are a wealth of knowledge! I'm subbed! I am having these issues at present and came across your channel and have been watching the videos you posted. My furnace just started short cycling recently and I am trying to troubleshoot it with out calling for repair but that option isn't off the table. I have a lennox elite g50uh. I don't have the on/off switch at the furnace so I have to trip the breaker. I cleaned the flame sensor though it really didn't look that dirty as compared to what the videos have shown it can look like but problem remains. I will replace it since it doesn't cost much and see if that fixes it. Blower fan starts, the igniter lights,, I get flame but it turns itself off. It either turns itself off quickly or turns on but stops shortly thereafter.
I've wanted to replace the thermostat to something a bit more modern (and I'm not sure if this is the problem).
Thanks Pal. I have an 𝗢𝗟𝗗 Perfection furnace. Built like a tank, very simple. No heat so first I changed out the thermocouple, nope. Then checked out the transformer which was within spec. Next was the Baso switch, nada....I'm running out of stuff 𝙄 can do before I have to call a repairman. Didn't think the thermostat would be bad. But as a last ditch effort I checked it out per your video. 𝙎𝙪𝙘𝙘𝙚𝙨𝙨 !! the burners came on. Now to return the Baso switch and get a new thermostat.....𝙏𝙃𝘼𝙉𝙆𝙎!! Oh yes, 𝙇𝙞𝙠𝙚𝙙 𝙖𝙣𝙙 𝙎𝙪𝙗𝙨𝙘𝙧𝙞𝙗𝙚𝙙
Well done and thank you for that awesome tip. My unit is not working and your advice, gives me more time to consider options. Great safety comments too, really appreciate you!!
I do have a question, my issue with my AC is I accidentally disconnected the wires from the outdoor unit to the sensor. And the wiring the installer did was to connect to the same outdoor safety switch that brings the line to the load. I can't find any advice on how to reconnect the sensor wires.
Thank you for the great video. I have a question with regard to the bypass. You mentioned that it is better to turn the furnace switch off After you find out if the thermostat is getting power to do the bypass. How can the motherboard gets power to turn on things if you switch the furnace off, am I missing something?
Great instructions video for thermostat test. Easy to understand.
can you speak slowly For next video please????
Thank you so much. Just got my furnace back on after my thermostat died using a 📎 because of this video 🥳
Sir Jay! thank you so much for spreading the knowledge. Your jumping advice resolved my problem.
FYI, It just started getting warm and my A/C stopped cooling/working , the Cool temp was set to 83 and the current temp in house was 85. The fan in the house was working but I went outside to see if the compressor/fan were going but it was NOT. So, it was NOT being turned on by the thermostat ( or the fan/compressor/capacitors were bad ). So, I changed the batteries ( 2 AAs ) and then tried to turn on the Thermostat but it stayed in the OFF position no matter what the COOL or HEAT setting was. So I went to chatGPT AI and it said to press the RESET button on the thermostat ( using a small screwdriver to push into the reset hole ). Voila , the Thermostat re-booted and I was able to set the Cool temperature and startup the A/C. So, with a good DIY attitude and Jay you can fix things too !
Thanks for putting your info out there, helped me get my furnace going again, for zero dollars out of my pocket. Trouble shooting is the hard part. Swapping parts is easy.
Exactly what I needed to know, beyond clear instructions lol. Thank you!
Thank you Dude!! Just replace my thermostat and the technician did not do a by pass from R to RC and my AC turned on.
The oil provider ROB here in NY is charging mr for 125 dollars diagnostics and 215 per hour of labor and plus for parts and blah blah blah!!
I just did it my self bypassing..
perfect explanation, thank you Sir!
I wanna thank you! This video is so well explained and helped me save so much money. Keep up the great work!
Word of Advice Thank you! Thank you! Thank you! I'm a 69 year old women and I just fixed my air conditioner!
love the video. There is no power to my thermostat after checking with a meter and all breakers are good. There is power to the outside condenser. Any ideas of what to check next? This is a split system heat pump.
I wish I could’ve seen this video before .. I remember I didn’t know what to do and i call an ac service.. but im glad i did subscribe to see all videos and learn more from a professional..
Hi again Madara! :) Thanks for subscribing and watching my videos! Hopefully from now on you will be able to fix all the problems yourself! With all the self-learning you are doing, I am sure you will figure out any future problems.
Jay, help! Today I noticed that he AC unit wouldn’t come on at all, so here are the steps I did:
First, I took readings with my multimeter at the thermostat. 24 volts
Then I checked outside at the contactor and I had 24 volts going in.
Came back to the thermostat and thought it could be a broken thermostat. So I created a little jumper cable like you said (running red to yellow), and bingo! The AC unit came on. So this indicated that I may have a bad thermostat...then, I messed up. Even though the compressor and the fan came on, I still didn’t notice any air blowing out of the vents in the living space. So I thought, oh, I must have to connect the red to the green one (fan) and the yellow (AC) together. Then I thought, “well, I might as well connect blue, yellow, green, and red together.” So I twisted all of them together (but first I shut off the disconnect). Then I flipped the disconnect on and now I have nothing. And when I went back to separating them and putting them back into their designated spot in the thermostat now I got nothing. No voltage, and the thermostat is completely dead now. Now I don’t know where to go...perhaps I blew a fuse or something? Any words of wisdom?
Hey Nick! Sorry to hear about your troubles! It sounds like either your thermostat may be bad or perhaps weak batteries? It would have been okay if you wired G, R, and Y together.. But G is for fan, R is a hot wire (24v) and C is a common. By connecting R and C, a direct short is created. Most likely your 3 amp fuse is blown. It should be in the furnace control board. After you replace the fuse or reset the little 3 amp breaker, I would watch this video next as to why the blower is not coming on: ua-cam.com/video/JSgLGTAbDF8/v-deo.html
Word of Advice TV , you are the best...nailed it! Thanks for the help!
A little help is much appreciated! On my board I don't have R by itself and C by itself. I have RC, RH, B, O, Y, W, G
You should look up heat pump thermostat wiring since it seems like that's what you have. Here's a short summary:
RC is power to cooling, RH is power to heating. These two are often jumpered together (internally or with a jumper), as if you only have one R terminal.
O or B is for the reversing valve
O or B is the common. Just look what color wire goes to C in the furnace to confirm.
Y is cooling
W is heat
G is fan
You're right the RC/RH are jumpered together. I followed your advice and when I connected the R and the Y, the AC started running so I have a problem with my thermostat
Greatly appreciated this video. You're saving a loved one a lot of money. 🤜🏼💥🤛🏼
Awesome video. It worked. Just one question and it's probably a stupid one. That's all I need to do until they can come fix the thermostat right? It's running now and will continue to run until I flip the switch. Is that a safe way to run it?
very good! stay short in explanation and right to the point! as shorter the videos, the better it helps!
Jay, I need to test my thermostat because my thermostat is blank. I enjoy your videos and have learned a lot. My problem is I have a carrier thermostat-infinity. This thermostat doesn’t have the normal nomenclature it has ABCDS1S2. There is only four wires green,yellow,white,and red. I am afraid to use my multimeter since I don’t know which wire to touch.
Thanks! Now I know my thermostat is busted, so I ordered an new one. Saves paying the HVAC guy. Very clear.
Thank you so much I tried what you suggested, saved me a service call of $70.i installed a new thermostat.I didn't turn switch on back to gas or oil, I guess I shorted. Any ideas on a decent thermostat please. I bought a cheap 25 guess goofed lol
As long as it works, it doesn't really matter which one you get :) I personally like thermostats with less buttons. Unfortunately I don't have any recommendations for you though..
Thank you very much for your vídeos, I appreciate it very much !! Just one question to bypass the thermostat should the unit be off? Thanks
It doesn't have to be off. Just be careful not to touch R to C as that would be a direct short and will burn out the fuse.
Thanks you so much! Your video are very very helpful!
That was a good advice but I have a question for you my furnace keeps short cycling and never gets up to intended heat what should I look for and can I jumper this to bring house heat up
Thanks for sharing the info. The water leaked from the roof on my wall and the thermostat got wet. I thought the unit would start working after drying, but it didn't even after completely drying the unit. I changed the battery as well but it didn't turn on. Does that mean the thermostat has gone bad? The unit is "Honeywell VisionPRO 8000 Programmable Thermostat". Your comment is much appreciated.
My AC turns on and cools the house, but DOESN'T turn back on to cool the house again when it heats up again. Any idea what that can be from? Thank you for taking your time to read this and your videos are great!
Sounds like something is wrong with the thermostat. If it has batteries I would try replacing them first. If problem persists, then likely the thermostat is defective. Only way to check for sure would be to check voltages in the furnace with a meter.
@@WordofAdviceTV Thank you for the reply first off! I'm gonna swap out the batteries tonight and most likely purchase a new smart thermostat in the very near future.
@@jodeci888 Sounds like a plan. Good luck, stay cool! ;)
Thank you again.
Thanks to your video I have heat on a chilly night.
Happy to hear that! :) Thank you for leaving a comment, stay warm!
2:26 is the single most considerate thing i have ever seen in my life. faith in humanity restored.
Thank you for your vids - super helpful and appreciated.
I have a problem with no power to my thermostat but power at the board. Happened last night during a rain storm - probably unrelated but not sure why it would just stop working like that.
The breaker is fine and the board is getting power. Thermostat connection reading 27 volts at the board.
I also checked if the the water pump was working or if the float tripped anything but it appears fine.
Any suggestions on what else I should look into?
Regardless, thank you for these vids. Really helps to understand 👍
Very helpful, thank you!
Thank you so much for the video! I have no display on our thermostat which means I can't get our heat to come on obviously. The breaker seems okay however I simply cannot get any power to the thermostat? In your video you said once you use to jumper cable if nothing happens then you know it's not your thermostat. Not sure if I heard that wrong but wouldn't it be the opposite if nothing happens then something's definitely wrong with no power or display on thermostat? Thank you in advance and sorry for the inconvenience.
If you jumper R to W at the thermostat and the furnace turns on that means the thermostat is bad or the batteries are dead on it. If nothing happens, then the problem is in the furnace. The furnace is supposed to send 24 volts to the thermostat and maybe it is not doing that for some reason. Have you watched my Top 10 Furnace Problems video? That one has a lot of furnace problem scenarios. One of them may be what you are experiencing :)
I would like to say thank you. Your video was easy to understand and very informative. After following the steps you described i was able to determine that i had a faulty thermostat. Once again thank you.
Exactly what I was looking for; thanks, esp. for the excellent camera work. As a bonus, I get to buy a new toy: magnetic jumper; never knew that was a thing.
Thank you for instruction. I have a problem with heating. My AC turns on for cooling but not for heating. I tried bypass thermostat, but no luck.
You did a fantastic job, explained everything well on what was going on with everything. Used your testing method, fixed my issue. Thank you!
Rc 24v power from cooling tranformer R24v power fro heating transformer ycomperssor contacter y2 compressor conttacter stage 2 g fan e merfncy aux het rely lseds out put when set to em heat c 24v comon ..
Hello and thanks for the help! I need to bypass the 2 speed fan control with capillary on my ancient central air unit until the new switch arrives. Blue,black and red wires. Thank you
Before replacing the thermostat or something else check for obstructed drain water duct kicking the sensor off. Just remove the plug with 2 wires some where around the pvc tube. It may help
just hot wired the thermostat and the furnace works. Thank you.
Thank you so much for your explanation! You saved me a service call at the very least and possibly being upsold into a new system. My confidence level has risen!
Great video....if you jumped the thermostat it works..so what is wrong then..is it your thermostat or something else? That is the issue I am having. My screen shows room temperature and nothing else...but when jump A.C. comes on. Should I change my thermostat?
If your thermostat has batteries, try replacing them first. Otherwise yes, I would replace the thermostat.
If you have gas heat, you only jumper red to white as the white call will energize heat and the fan without green being jumped. Because gas heat fires the gas first while delaying the fan, the fan will be brought on by time delay. if you have a heat pump, wire red,green,yellow,orange....those four together will call for the indoor fan, the compressor and the reversing valve.
So if a thermostat isnt energizing G on the thermostat side. Can I bypass it by wiring G to C? Or do I have to jumper G to energize with cooling/heating respectively based on season?
Nice. Next time dont add your 2 cents. Make your own videos. If your not willing to answer questions dont act like you care.
Rob, thank you for adding your two cents. It was appreciated and I don’t have any emotional connection to whether you care about me or not… (like Others.)
Where did the orange wire come from?
I have a NEST upstairs and downstairs. Upstairs is an American standard Golds furnace and the heat has been working fine and the AC worked fine at the close of summer. I just had carpet installed upstairs and the installers turned the heat way up as they said it helps with the carpet settlement. It went up to about 77 degrees and we usually keep it at 70. They left at night and we turned on the AC since it was so hot and the fan came on but the compressor downstairs did not and does not even hum when trying to turn on. I did your measurements from the last video and the relay measured .8 ohms. Ordered a new relay anc cap and new relay measures 14 ohm and cp also good. My control board upstairs has a 5 v fuse but it is not blown? I have 28V going to red terminal; and white terminal going to the NEST. Back downstairs, I pulled leads off the relay and measure volts there when AC engaged on nest and I only get 10V??? If I measure leads upstairs where 28 v is, it is 24V. As you showed, I event used the unused pair of wires going from upstairs to downstairs relay and still only 10V downstairs. I can manually push in the relay and both the fan and the compressor come on???? I even tried swapping the NEST from downstairs with upstairs. 24v transformer tests good. MY NEST downstairs is wired different than upstairs but both have been working for over 8 years. Downstairs AV unit is different brand. Control board? Why did 5V fuse not blow when original relay shorted?
I liked the way you explained the video. Much easier to understand. I always be watching your HVAC video. It be helping me out. Thanks
New to the channel great video but I have a question I bypass the thermostat and it cuts on but not when I use the thermostat it does nothing
Great Video!! Before I tackle the Thermostat and Control Board. When I switch to fan only the blower does not come on. When I switch to Heat "Auto or On" the fan does not come on but the furnace is fired up and working. Fan may be on but really can't feel it. When I switch to AC and auto the blower works great. Does the blower have a different speed when in Heat mode? Seems it should be blowing more air into the house like when in AC mode. Thanks for a reply!!
Hi, your videos are super helpful. When I jumper AC at the control board the AC does turn on, but when I jumper at the thermostat only the fan kicks on. The outside unit does nothing. Based on what you said in the video this would suggest this is not a thermostat issue?
FIXED! After watching your wiring demo, the previous homeowner messed up the wiring at the control board... Y was connected to G by mistake.
@Kevin High Perfect! Glad to hear you figured it out :) Stay cool!
Your help with determining the thermostat wasn't faulty made me think it was probably a fuse in the furnace.
Sure enough it was. It costed $1.69 for a fuse, rather than a service call that would have costed $50-$100.
Glad to hear you found the problem and it was an easy fix! Stay cool ;)
Thank you what to check next if thermostat is NOT bad?
You are trying to turn on the air conditioner right? I would suggest this video first: ua-cam.com/video/wzAA4dlp_70/v-deo.htmlsi=nomHzJI9Xq4PBv_w
Thank you for the HVAC thermostat test info.
No problem, thank you for watching!
Love your channel I just replaced my units battery and contactor it was working for a day but this morning I went to check on it because for some reason it was not turning on and there was a little wire that was broken so I reconnecting it but my air has yet to turn back on?
Thank you so much for your videos and advice!
Thanks for all your videos especially this one which showed I had a bad thermostat.
You're welcome! Glad to hear you were able to find what the problem is with my videos :) Stay cool!
Great video. So for the nest I have it says I need a common wire. I bout the 24 v adapter. Plug the white n black into C and the white into R with the red wire too tight?
hello,I im glad to find your tech support,I have a ladyfriend who has a trane x401,from 06,there was a big thunderstorm in florida ,2 weeks ago,and the thermostat does not come on,no display,so I ordered one from ebay plugged it in,still no display,i did not ask her if the outside unit ,with the fan&motor came on anyway,there is a cut off switich on the wall,so i piulled out the copper fuse,put it back in,still no display,,,the wire in the thermostat has say,6 wires,,one of them is the hot wire& one is nutreal,does this cable go up to the attic,in a cutout box with a transformer to another cable to get the 24v needed for the thermostat,and go back to the breaker,,so is the problem on the circuit board in the main unit outside,is there a fuse or a reset button on this,thanks for any help on this,,dan diorio,,
Thanks for the good explanations and making clear the purpose of the various terminals and the wire color code..
What a terrific way of explanation 👌
Keep up the good work .
Thank you for sharing!
I TRULY APPRECIATE your vid of CONCISE INSTRUCTIONS 👌🔧 😊
Happy to help! :)
Thank you for your very useful video series. I have a question for you, my Carrier AC stop working without notice, my thermostat is working. I checked capacitors and they look fine. The only thing I saw was that the LED light on the board is off. Could it be a bad board? Thank you in advance
check the fuse. should be 3amp maybe is no good
Hey that's exactly what my situation is. I replaced the batteries & it appears to be working but no longer lights up. Did you ever get it figured out? My husband is off working & it's 87° inside my house right now!
You are THE man! Thanks.
very educative. Thank you regards
Expert always nice I love all your videos Jay. Thank you so much.