YOU ARE THE BEST!!!!!!!! i wish i could like this vid 1000000 times. fortunately I had an extra blue wire ran to the furnace that was already hooked up to the furnace, but there was no C connection, it was connected to B which was labeled as 24com. I did a half assed google on "B 24com"and concluded it was the common hookup. now my nest is getting a 200ma constant charge, which is higher than the 100ma charge I heard someone else report, never the less it is finally functioning as advertised. thank you again, i have been so frustrated about this the past 24hrs. I am going to link this video to the nest reviews on amazon now to help everyone else out.

Thank you! I have a 4 wire system and my nest kept dying but now switching the common green like you said....viola!! You know more than nest tech support does.

Hook It Up, I just purchased the E thermostat and was also running into the four wire, no power issue. Found your video to be extremely helpful. Moved the blue fan to C and moved it to C on the circuit board. Power charging the device and now there are no issues. Nice editing and comedy in your video. Respect and now a FBM.

Thank you so much for helping me set up my Nest thermostat. I watched several videos for my first generation nest thermostat and then I came across your video. It was so simple. I watched your video once and quickly caught on to what you were saying. I switched one wire on the heater and one wire on the thermostat and I am up and ready to go. Thank you so much for your time.

I'm pumped now. I pulled my thermostat and saw 4 wires, but then a blue wire tucked away. I went to the furnace and see it is connected. So I have 5 wires. I have a C wire. Now I will for sure get a nest. After doing a little searching, I see people have problems with no common wire with the smart stats, so glad I gained a little knowledge from this video and from other sites just knowing about the constant power a smart stat needs.

We had a R Y W and G. The nest caused our furnace to short cycle, turning on and off. We didn't have a C common wire. Nest support couldn't help and told us to exchange our Nest. We tried that. We also tried charging it with the USB overnight because forums led us to believe it was a power problem. Tried this and it worked! It was our last ditch effort before taking it back to the store, so thanks!

@jenkinsjadem

6 жыл бұрын

Dean Beaudoin did it come with a usb charger ?

This video was extremely helpful. It solved my Nest issue with the heat not coming on due to no common wire. I switched the G wire to the C connector on the Nest, and bam! No more annoying fan control and now my heat works properly. Thank you!

@Poop121234

5 жыл бұрын

Does that still work for you since u last did it?

Real nice of NEST to tell me about this video before , I like many others had only 4 wires and I called a contractor who said he was unable to run a common wire to my nest thermostat, I took my nest back to the store , I didn't throw it like you did :-{ . oh well maybe ill try it again if this works.

Thank you for the video!!! This helped us get our nest up and running again.

This helped tremendously. I spent 2 hours in an on-line chat session with nest. I had a 2-wire system attached to an 1960 something thermostat with the mercury bulb. Nest told me that the thermostat was not compatible and that I would need to hire a contractor. Did some research and found that I needed a new wire allowing me to have a "common wire" to supply a consistent low-level stream of electricity to my nest. I threaded the new wire thought the wall and to my furnace, followed the wiring instructions in this video and everything is working perfectly. Nest support sucks, but don't give up. If I can do this, anyone can.

5 years later this video still relevant and helpful. thanks fam.

Thank you! I was messing around lastnight for hours trying to get it to work. I called nest and they told me it's not compatible with my condo hvac. I spoke with my brother who said it's probably a common wire issue but he didn't have time to come and look at it. Your video solved my problem!

Super helpful! I previously had a technician come out who told me that the unit needed a common wire. I don't know why he didn't install one. The video simply and clearly explained how to fix the problem. I'm not all that handy, but I can follow directions. My place is finally warm. Thanks!

@HookItUp

9 жыл бұрын

your very welcome !!

@ddcc66

2 жыл бұрын

@@HookItUp Boiler system with 3 zones valves upstairs one control the AC and has the E79 error

THIS VIDEO SAVED ME !!! Here it is YEARS later and it is still helping us THANK YOU ...

@freddyalcaras

7 жыл бұрын

Robert du Plaine does it work on the 3rd generation?

Thanks for the info! I had to rewire my furnace to make it work but I finally got it. I almost took it back to the store glad I watched your video!

Thanks for this helpful video! I almost returned my Nest Thermostat thinking it was defective. Nest should pay you for this video!

Perfect, Thank you so much for this video, my nest was turning the heat on and off and then restarting, always happens in the middle of the night, called nest and they said I needed a common wire ran from my furnace all the way directly to the nest, I switched this wire as you showed and it worked great !!!!, Thank You SOOOO Much !

@HookItUp

9 жыл бұрын

your welcome

Thanks for taking the time to put this video together. We have two Lennox furnaces and I first came across your instructions when installing the Nest on the upstairs zone. This and installing the Nest took about 20 minutes, (plus the 30 or so minutes of being extra careful I was doing it everything according to your and Nest's instructions). Today I'm stalling the second Nest. Thanks again!

Thank you for sharing your knowledge. Very helpful, indeed. I was ready to take the thermostat back.

I didn't even know having more than four wires was a thing, I opened my furnace and saw 4 unused wires, the blue wire got elected as my 5th wire and now I have a common! Thanks again.

It just AMAZES me that I can find almost anything on Google ... I bought the Nest Thermostat ... and after installing it was useless ... I went through the Nest Troubleshooting apparatus ... even called to speak to a Tech ... They were no help at all. So I Googled NEST THERMOSTAT PROBLEM ... and I got this hit . After two weeks of trying every imaginable fix ... It took ten minutes to do The Common Wire fix as described here and BAM ... it works perfectly

Thank GOD for this video! I have been on the phone with Nest for a combined 3 hours and had two technicians come out paying $250.00 total. Both wanted to run a new line with 5 wires. I have 3 nests and we would have had to cut sheetrock all over to do this. NOT AN OPTION FOR ME. I had to call the last tech back out and make him watch the video. THAT WAS A CHALLENGE! After watching the video, i was up and running in ten minutes. THANK YOU SO MUCH!!!!!!

Great video, thank you very much!!! I was about to purchase a new Nest thermostat because of the battery discharge issue when I found it. Did the G to C swap both in the thermostat base and in the furnace exactly as it is in the video (1:25 - 1:50) and it worked like a charm - the battery is fully charged now. My only suggestion will be to add "solving the battery issue" somewhere in the video title for people who are not aware that the missing common wire is causing the battery discharge when the thermostat gets older.

I've had the Nest thermostat for about a year and have not had a problem with it until the other morning when I woke up and it was 45 degrees in the house. The Nest lost power at 3 a.m. I pulled it off of the wall and pushed it back in and it worked, but would not connect to Wifi due to the battery no longer charging. I pulled the Green wire out of the G in the Nest as well as the furnace, and put it in the C (common wire). It now works great and it is fully charged. Thanks for posting this!!!

@HookItUp

5 жыл бұрын

Yeah the nest uses "power robbing" some newer furnace control boards will tolerate it for some time but eventually when the load of the thermostat becomes greater than the amount of power the board can supply then the furnace says "nope, no more for you" in the case of the heating season where the t-stat cycles on and off frequently.

Thanks for helping help! You were on point with the common wire problem. No more dropped internet connection and 🔋 power stays at a constant 3.93 volts. I do miss controlling the fan separately, but I barely use that feature.

Great info. Solved my charging problem! Best video of this type I’ve seen. Thanks!

Had the HVAC guy out here, even called NEST/Google - told me I had to put the old thermostat on or just do without A/C. The bypass worked like a charm!! Appreciate the tip!

@HookItUp

5 жыл бұрын

Nest is so behind, I had a whole series done for them but Tony Fadell's team decided they didn't want to pay me because I was a little guy (I'm guessing), so I never published it, but you can look him up you will see exactly who I'm talking about. I'm glad to help you out,if you don't mind, let nest know that this is the video that prevented you from returning the nest, and got your system working, thanks

Oh man thank you so much. My Nest Thermostat E would run the fan all the time even if the thermostat was off. Spent an hour with Nest on the phone and nothing. They concluded that my base plate was bad lol. I don't know anything about A/C but I could tell that was not the problem. Came across your video. Thank you so much for explaining the function of the green cable. I switch the cable to be a common wire and problem solved.

@HookItUp

5 жыл бұрын

Yes please convey that to nest verbally or via message, they are very greedy and did not want to pay my cost to make more help videos on their products, very unfortunate.

Thank you! Helped me a ton and got my Nest working. You Da MAN!

IT WORKED!!! You're the best, man! My Nest thermostat needed a common wire, so I used the green wire as you suggested. Worked perfectly!!! And you're right - the fan went on and off as it should. A local Nest PRO wanted to charge me a minimum of $300 to fix it. I just fixed it myself for free, thanks to you! THANK YOU!!!

Just purchased a new Sensi Touch screen WiFi Thermostat and my Rheem AC Unit has 4 wires only. After watching this great video I now have a fully functioning system with this G to C Wire swap. Thanks for posting this. 2 thumbs up

This video was spot on. I did exactly as described and it works perfect now.

I love how you produced this video. Well made.

Thank you! Confirmed fix with my 4 wire system and switching Green to Common both at furnace and on Nest. Thanks for saving me about $200!!

Finally, sensible instructions. I moved my green wire to C, problem solved.

Thank you so much! This was such a great explanation!

Thank you so much. I was having trouble with an ecobee3 not having a common wire and the pek was not working correctly with the ac, so I ditched it and put the green wire as the common on both the circuit board and thermostat wirings as you said, and it worked great. You're pure genius!

Thanks man this helped me out 2 years ago to install it. And helped me out today when I swapped it out for a normal thermostat before selling my house. Hope all is well.

Great video!!! Thank you very much for taking time to help so many people!!!👍🏼

This is a great DIY video. Thank you! I spent hour on phone with Nest Tech Support, which is amazing then elevated to Sr. Support who told me I needed common wire. Luckily, I have a blue wire in bundle; however, I was told I needed Nest Pro to complete installation. Now that I've watched this video, I've got it! Thanks!

Man. Just replaced my 20 year old furnace that had a nest on it. New furnace fan ran constant. Allot of hours trying to figure its out. Then came across your video. Worked!!!! Thanks for the help.

@HookItUp

5 жыл бұрын

You're very welcome

You just saved my family a cold night. Thanks a million!

Thank you for this video. Im on the fence about a Nest because I don't have a C wire, but this makes me think I should give it a try.

Awesome! Spot on :) In my installation I used Blue instead of green and labeled it on the thermostat end.

Wanted to give thanks to this video! nest worked great for tail end of winter then spring, when started to use AC it would trip every few hrs my breaker. Was about to put old thermostat back on and found this great video. Problem solved added common, worked like a charm! Thanks!!!

You are a life saver . Thanks man.

Perfect fix. Thank you Logan utah

We just installed a new thermal pride OH8 and tried to add the nest but because of the common wire problem system wouldn’t operate correctly and I was thinking I needed another transformer or a jumper wire from jeep to see you solve my problem thank you very much!

Thanks so much. Nest support could not figure it out but this certainly did. Worked like a charm. Oddly the thermostat upstairs still uses the fan wire and does not have the same issue, very odd. Same units and everything.

You are the man. This video did the magic for me. Within 10 minuted after this my Nest thermostat started showing 3.9 power from 3.5

@bnick25352535

4 жыл бұрын

is your unit still running good with this fix

Thank you AC wizard, I just did a job last week and after watching your video it works.

OMG - this happened to me New Year's Day on Long Island during record cold snap. Had to endure usual HVAC tech complaints of Nest. After heat restored and he left, was ready to run new wiring from thermostat to furnace if it happened again. Thanks for making this video - saved the day, night and New Year's.

Great video! Just what I was looking for! Well actually I was looking for how to install the add a wire adapter. But this is much better!

I just came across this video in doing some homework to install either the Nest or the Ecobee. If I could buy you a beer I would, thank you!

Super to the point video which I really appreciate. This information really helps. Thank you so much!

Thanks so much. This helped me out. Thank god for KZread

Great video. Two things... you can now control the fan separately to come on for as little as 15 minutes to 12 hours. Also in the nest box are sticker labels to wrap around the wires so you know where they go.

Thank you for sharing!

Dude... i love you for this video. I had an unused blue wire that i hooked up to a "C" terminal on my furnace and used in on the terminal block for the Nest. You-da-man

1) Bought a Nest Thermostat for my new home. 2) Took a picture of old thermostat wire configuration. 3) Got the wall plate and base and started working on that. 4) Installed wires on the base based on configuration of old thermostat. 5) Got Nest to work. (Yay) 6) Left new home to sleep in old one. 7) Came back to find Nest lost power. 8) Freaked out. 9) Begin troubleshooting the issue. 10) Found that Nest was below 3.6V 11) Found that I needed to install a "common wire." 12) Freaked out more since I am not an HVAC technician/electrician by trade. 13) Googled some more to see if there was an alternative. 14) Found this video. 15) Took many deep breaths as I was about to go into my furnace. Turned off power to furnace on the breaker box. 16) Found control board with the letters clearly under the wires/grounding screws. 17) Took my trusty screwdriver and switched the G and C cables (after I had moved G to C on Nest) 18) Turned power back on. 19) Ran to the Nest Thermostat. 20) When to Settings>Technical Info>Power and saw battery voltage was climbing up. 21) Breathed many sighs of relief! Almost spent $100 on a Nest Pro! Thank you for this video kind sir!

@GaMeOvErRules

4 жыл бұрын

Your comment makes me feel like I could so this myslef.. I'm just so hesitant to touch the furnace.. I'm having the low battery issue too.

😂 I was laughing so hard but learned a great deal too. Awesome video.

This fixed my power cycling problem last night! BOOM thanks!

I just spent two hours figuring it out without this video. I wish I had seen this video before I discover I had a common wire but it wasn't hooked up to the furnace circuit board

This help my problem! Thank you!

Have a Nest on order and after watching a different install vid checked my wires and I only have 4. Maybe once I take the old thermostat off I'll have more wires in the wall. I never use just the fan anyways, so this tip will help me a ton if I have to do the wire swap

Dude hilariously helpful. I spent >1hr on the phone with Nest that lead to them connecting me to a "Local Pro" who would come snake a new common wire to the thermostat....at my cost. This worked out great, THANK YOU!!

Man, thank you so much! My sys actually had a blue common wire. But every time I put it on, the Nest would NOT even start. So I would run it without the common wire, and the system would continually kick off when it needed more power. Before I made the green wire switch, my power numbers were Voc:36.77 Vin:25.63 Lin:20mA. After switching the green wire, Voc:34.73 Vin:34.73 and Lin:200mA. It made all the difference in the world. It is now running properly, and I really appreciate it. I doubt I will need anything else from your channel, but have subscribed anyway just to help you out for those who do. Thanks again!

Thank you! Thank you! Thank you! (We don't have AC, so I used the yellow as a common wire, but the principle is the same.)

I can confirm this worked with the Nest 3rd gen. Thanks!

Super video, thank you!

Thanks! This morning with temperatures dipped below zero, the Nest had an error code about not getting power and installing a common wire. I was able to move the ground wire to the common wire and all is good once again. Thanks!

@HookItUp

5 жыл бұрын

Same as above but I'll repost here for your convenience. Yeah the nest uses "power robbing" some newer furnace control boards will tolerate it for some time but eventually when the load of the thermostat becomes greater than the amount of power the board can supply then the furnace says "nope, no more for you" in the case of the heating season where the t-stat cycles on and off frequently.

My nest was causing my blower to short cycle while the a/c was on. I followed the instructions in this video and now the blower stays on until the a/c turns off. It works perfect and just in time for summer. Thank you!

Great Video...worked for me. Thank you very much!!!

thanks man! much appreciated. i'm going to try this. my AC was intermittently turning on and off. had to put my battery powered honeywell back on the wall. i'll look at my furnace for G and connect green wire. i don't need to control the fan, as long as it goes on and off with the nest i'm fine. i see you're in Chicago. me too. beautiful GSD. Our girl is 4 months old.

thankyou so much, i had the c wire adapter overnighted and still didnt work because I have 2 y cables.. but just switching the green over fixed it and saved me 25$! amzing this video still holds up 8 years later😂

Thank you! This was the solution to the e74 error code that my Nest Thermostat was giving me after installation. I called Nest support first and sadly they weren't able to help me at all. So glad I found this video. Once watching it, it took me all of 5 minutes to make the recommended wiring change. My Nest Thermostat is now working properly!

@A1bert00

7 жыл бұрын

Jason Stum im gettin the e74 code too. just wondering i do the common wire its just not wire in. can i just use that instead of the green wire

excellent video! helped me out a bunch! thank you!

Worked. Great Video. Thanks!

You're the best. Awesome video. Stoked to follow!

Great video! This was really helpful and fixed my problem.

Dude you solved my issue. THanks man

Very Helpful!!

Great Video, just solved my issue. Thanks guys.

Great video. Thank you!

Thank u sir your video was very helpful

Thanks for clearing this up, My current Carrier thermostat's Y cable is black, so I'm assuming they used whatever copper wire they had when installing the Furnace. I was worried it was something else.

Great video. Thanks a lot

Great video ! Just to add clarity here the "C" Common wire is needed to supply power to the nest thermostat. So make sure this wire runs to "C" on the furnace circuit board. If you have a thermostat that is battery powered you may not have this extra wire, so you will need to add it..

Thank you!!!

This is great. Going to try the common wire fix. This thing has been turning the fan on and off every few minutes when I run that ac. I LOVE the nest but I don't want to destroy my furnace.

Great Video and explanation, helped solve my issue with the missing common wire. BUT I disagree with the discussion on the value of independent fan control. Large volumeous homes or homes with separate sources of heating, like fireplaces can benefit from intermittent fan circulation independent to the furnace cycle. Thanks for the help and explanation!

Thank you so much. Yes so I wasn’t sure if this applied to me or not. My nest would turn off every couple mins. It would say starting again in 2:45 or something and then it would just be on and off on and off every few mins. So I figured it out. Is your nest power is anywhere around 20mA then you need a common wire. Luckily I noticed a blue wire that wasn’t being used. I opened up the AC unit and it wasn’t connected. I connected it to the C on the mother board then connect to the C on the nest panel. Now I’m putting out 200mA. And my system works great. Also at the same time I found 2 other issues. My nest won’t populate any networks. I found that my WiFi chip is burnt up prolly caused by the on going power issue. If this happens to you. Just contact nest they will be happy to ship you a new display. Also another issue I found was that my AC unit itself was not powering on. After some investigation I found a killswitch on my condensation pan. After draining the water and unclogging the drain line, my AC was back on and kicking. Just some issues I’ve fixed in my house. Hope this helps others.

@benzojay903

5 жыл бұрын

Kai Barlow I had the same issue as you, connected my nest as the instructed, it would say starting again 2:45 and my system would be on and off. I took my green wire (electrical off) and plugged it in the C, did the same on my motherboard. System + Nest working perfectly. I hope this doesnt cause any issues with my Central air in the summer.

I have an old "Breaburn" thermostat [with a C wire] in place already. I LOVE my Nest thermostat and I've owned it for over 4 years ~ and I've lived in a few apartments and condo's in Phoenix during those 4 years. But now I'm faced with a "C Wire" scenario / it's here!!. Are you saying I 'don't need the C wire' at all, and the Red wire will be sufficient for power to the Nest? Should I just "disconnect the [C Wire] and stuff it behind the wall / thermostat? Or just simply tell me "which terminal" on the Nest thermostat that I need to plug the [C Wire] into. (if at all)

Good info. Thanks man

Awesome video. Funny and nice music. I have this problem -- only 4 wires. Going to move the green. Thanks for breaking it down and explaining everything in such detail. Subscribed.

It worked! Thank you.

Great vid worked for me very Thankful N appreciated

Awesome, great video great info THANKS!!

Great help thanksssss