Had this issue with nest in my 1st house, having it again in another house. Looks like a common pain in the crack with Nest thermostat. Hope this thing finally helps and it doesn't cost another $300, I am freaking tired of dealing with that low battery headache. Was ready to switch back to my 20yo honeywell at some point, it works with no issues

YES! ive been needing this!

Your comment is true nest set up instructions say in the first sentence, only two wires needed. Those who have no issues with the start have a complete heating , ventilation and air conditioning system. That system already has 5 wires designed in warmer climates.

My furnace at home has a gas burner, fan and AC with outdoor condenser. Followed the exact instructions as shown at 3:42 for a heating and cooling system using the Y-wire, but the furnace burner and fan won't come on when I enabled heating and only the outdoor condenser/AC compressor would enable when cooling. I reinstated the Y-wire to the furnace board and used the W-wire instead, and everything now works in both heating and cooling mode.

My boiler does not have a circuit board so am i supposed to follow the white wire that comes from the 24v transformer?

Note to those with zoned systems (multiple thermostats tied to one HVAC system): you will need a separate power connector for each zone/thermostat you have on your system. The power connectors are installed on the output side of the zone controller. Google does not clearly explain this.

Question! We have 3 thermostats in our home - heating only - I have the Nest Power Connector - and I found my HUB for the thermostat - however I am only seeing wiring for TWO of the Three thermostats - Would I still connect this to the hub? Or go direct with the furnace?

Would 1 adapter work for the 3 thermostats I have or will I need one per thermostat?

For boilers or people with zone controls like taco ect.. you ll need a common creator relay. But this google adapter works best when you have an hot air furnace or ac unit. When you have a boiler the way that the common is runs is weird and wont work.

Having a hard time figuring out what to do with that "C" wire. I have a Taco 555 zone valve and I don't want to short anything out! I _think_ I can connect it to the 3rd terminal.

I have been having HVAC issues ever since I installed my Nest. Been about 5 years and the last 3 years the AC does not turn on. We call someone and they just look at the AC and when I mean look I mean with their eyes, they don't even touch anything and the bloody thing works. I think I might need the Nest Power connector, how would we know if we need this? My only indication was that the last HVAC guy last year told me to get an ecobee that came with their own jump box that connected to the furnace circuit board. I looked last year and nothing from Nest until now. They even mentioned possibly running a dedicated 24V power but that was a $600 estimate and these were all best guesses from the HVAC company. When I turn on my AC, it doesn't start. It does not click, I changed the capacitor twice. When HVAC guy came he tested the old and new one and told me the old was still good, so swapped it back. The furnace fan blows the basement air in but no AC fan spins. Any help or suggestions are welcomed. Still wondering how I determine if I need this or if this will resolve my issues.

I have 3 RA832A switching relays, and a unit that I think is the zone controller (it has the X-wires from the RA832A's and 2 dials set for 100 & 180F). I don't see any 24 Vdc available. I have 5 thermostats (2-wire r/w) but I only see 4 wires into the furnace room (the 3 connected to the RA832A's and one which has been cut). I'm at a loss how to proceed with this.

How to install it on multi zone controller? I connect it at the input part or I connect it at each of the zone output line? For example if I have two zones, I have two output lines at the controller, so I need two connectors?

I love it ❣️

I love you google! You are the best search engine ever!!! - Riley

Looks like I'll have to buy one of these. Having some power issues with my Nest.

Will one of these work for multiple thermostats? or do I need one for each thermostat? The wiring on my control board only has one two-wire output that gets spliced and divided to 4 different thermostats.

So glad they came out with this! thank you google

Do you still need to have the batteries in place and change them from time to time after installing this power connector or will it just run off this? I currently have a lux power bridge that powers my lux thermostat and doesn't require any batteries. I'm wondering if the power bridge would do the same. I tried contacting support but they were no help

If you have mulltiple thermostats, does each one require a seperate power adapter?

Shouldn't they turn the temperature DOWN to test? Not up. It was on cooling mode.

How do you install if you have 2 stage cooling only? I have a 2 stage handler and 2 stage compressor.

This is handy.

Can anyone help me? I have a two wire heating only system. On my control board where the thermostats go in, there is no labeled spot for a C wire like the video shows at 3:45 Where do i connect the c wire from the power adaptor if I have no C wire label on my furnace control board. My thermostat wires connect to T and T3 and there are two other slots that are empty labeled 2 and 1.

This is outstanding!!! Excellent work Google!

I got it but it says my W wire isn’t responding I updated the nest thermostat as well to 1.1 and when I put the W and R wire it recognizes both but with the power connector it doesn’t.

Is there a service that will come to your home any do this for you? Seems wayyyy too complicated for what appears to be a simple charger…

Unfortunately doesn't work for me. My AC (cooling only) - option 7 - only has a R and G wires (in addition to C), no Y. I tried running the G through the connector instead and feeding the C into the circuit, but the AC would no longer start after that so had to remove entirely. I guess I need an electrician to fish a C wire through the walls to the thermostat. Bummer as I was hoping this was the fix to this long standing problem.

I, for one, welcome our new HVAC thermostat power connector wire label overlords

My Gen 3 suddenly needs daily charging after 6 months of no issues. Do I *really* have to buy this kit and go through all the hassle? My A/C unit is on the roof of my condo and I have no way of accessing it. Can't I just run a MicroUSB cable through the wall instead and keep it powered through the charger?

Will this work with floor heating and would I need the connect also?

How does it even work, anyway? There doesn't seem to be any new wires just magically plugging into the thermostat itself, so how does it detect it and get power from it?

I have a Nest Thermostat (2020) and my installation has the following wires: C, G, Y, O, R. My equipment turns on correctly but I have no power (error N 260) and it quickly disconnects from Wi-Fi. When I do the voltage test it tells me that it has 24 volts.... Could you please tell me if buying the Google Nest Power Connector solved my problem??? Should I cancel the C cable and put the connector? Thank you so much! Daniel

Still confuzzled and looking forward to the review videos. I've got a simple two connector cable coming up from the boiler, currently needing an external power bock to replace the missing C cable for power. Doesn't seem like this will assist without more runs. But maybe I'm dumb.

So how does the thermostat actually get Power if the C wire never actually makes to the thermostat? Mine keeps giving the error the C wire not detected even after install of one of these to the furnace. Also can’t update it because it wants wifi. Can’t get wifi without the C wire….frustrated. I have a 2 wire system R and W. couldn’t I just jump power from R to the C port within the thermostat to give it power?

I'm looking at this video because I'm having a power issue with my nest gen 3 after a year. Constantly says something is wrong with the c wire/no power. Just ended up replacing the whole thing. Waste of money

Can this item help with the E74 "No power to RH" (red wire) fault on the Nest Thermostat?

I thought this looked simple enough but when I got the unit, then looked at all my wiring which looks completely different with 6 wire nuts connecting thermostat wires to other heavier wires going to the unit, I realized this is far beyond my capabilities ☹️ I guess I’ll continue to remove the thermostat and charge on the usb hub til I can find and afford a professional. My thermostat had worked perfectly for about a year but just recently started having low battery issues. I wish Nest would have just put a replaceable battery backup in the unit.

I just started have issues with low battery after 3 years of having my nest.

I have three Nest thermostats and did a direct replacement from the old thermostats with no issues. I just bought a Nest E and it gives me the error. Google offered to send me the power connector for free. I have a boiler with Taco controls and no C-wire. I ordered a 24v adapter but aren't sure how to connect it. Obviously, one wire goes to the C terminal and the other? I assume the R terminal.

I got a Nest Learning 3rd Gen which I installed during the summer. There were only 4 wires in the wall (W, Y, R, G) and no C wire. Nest worked just fine until one day outside temperature went down below zero(C). Now it just gives Error E80, Y1 wire has no power. I have a new HVAC system and well maintained. So the problem is there is no C wire at the thermostat end and nest thermostat is not getting power. Will Nest Power connector resolve the issue?

What happens if i connect old thermostat that doesn't require c wire if i have the google nest power adapter installed?

How can we update the thermostat before we install the connector but we need the connector to install the thermostat

When is this available!!!!????

I should like that hey Google I need a job 🤒🥺

Is this box just a resistor? Because of the way the wiring is, it sounds quite close to this "solution", of course they have you connect the R into it too.. but still... Connect a 220-ohm 5w resistor on the furnace between “C”&”Y”(or”W” if you have a heat only system)

This thing completely failed me. I was connecting a Google Nest 2020 version to a Taco 503-4 switching relay. My other zone has a Google Nest Learning and it doesnt require this thing. The 2020 thermostat still kept saying the stupid power error even though I took a multimeter to it reading 25V.

I need a thermostat nest E version

Where do you buy this? is it free? This should be included with the thermostat. I just purchased my second thermostat, and have had a fuse replaced twice on my unit. #google #nest #googlenest

It took a bit me to under stand why we need a c wire. Basically the heater and thermostat is in series. The heater is going to be taking up most of voltage and the thermostat get not enough. So adding a c wire it in parallel so the voltage is same.

So if you don't have a C connector then this product has zero use? I tried connecting to a simple 2 wire system yesterday to no avail. I'm a bit confused...or dumb...probably both

Does anyone have actual feedback from an installation that worked (or didn't)?

Also Nest power connector

Funny my pre-google nest didn't need this

My air handler doesn’t have control board and this video barely mentions what to do in that scenario

The captions don't match the video; they belong to another Nest video, not this one on wiring.

For me this video is hard to follow. Would be nice to have a human

Why not re-design the next to have a battery????????????

12 pm

What's the point of batteries??

WHERE DOES THE GIGANTIC POWER CONNECTOR GO?!?!?! It’s bigger than the thermostat where are you hiding it?!?!?!?!

why didnt i need the c wire for 3 years of use to my nest now it has failed no heat i payed a lot of money for 3 years of service before i could call nest they would help with anything now noting goggle hello and ideals ? iam cold and i charge this thing to give me a few hrs of heat then it dies again what have you done that nest is taking up more power ? turned on the camera ?

if you don’t have a circuit board and no c connection in your ancient HVAC this will not work

Where is this mysterious “panel”? There’s not one inside my house!

But I have a nest protect

Very disappointed! On the website it said that I didn’t need a C wire and now the thermostat is not working… I was so excited about the thermostat and will have to return it. Very upset…

POS. I wish I knew this when I bought the thermostat.

google lied to about the compatibility of their product...now they come out with kluge

Instead of a video, can I just have a wiring diagram at the furnace, please?

So, I installed my Nest and was having issues with the Taco Valve opening and closing. I found it may be the power issue and came upon this device. Thought I was saved. Installed it, and it seemed to work, but then it happened again. The Valve will open and close and open again and stay open even after done heating. This would cause over heating in the house when other zones called for heat. Anyone know how to fix this? I have a Taco SR503 with Taco Sentry zone valves.

Why is it that everywhere else says that the Nest is compatible with most HVAC systems except for high power systems, including most older systems. But on this video the line is now it doesn't work with high or low voltage systems? I bought a Nest & it immediately blew out my HVAC. Now I'm paying to have a repairman to fix my HVAC & I stall the Nest....but honestly I'm starting to think that there's just too much suspicious double talk coming from Nest & I may just need to return it, but a more honest competitor, & look into having Google fess up for it's shoddy product.

This video is a bit confusing. The video shows us they already have a five wire thermostat bundle 1:14. If you have five wires (RGYWC) at your thermostat, you don't need this power connector. Secondly, the video shows you how to install the power connector for a three wire thermostat bundle for a heating and cooling system, but normally thermostat wires have four wires (RGYW).

Whelp. It’s all done. Landlord connected. Nothing works. Says no power. I’m told to update my thermostat. Nest app won’t let me do anything and forces me to open Google Home. Google Home thermostat says Power Out Error. So every fix it tells me to do takes me in a circle. Irritating.

Hi Bottom

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Vague video ... meaning it is not very thorough or descriptive and leaves a lot of questions unanswered!

This video is the poster child of unsafe electrical work practices. OSHA and NFPA70E are the authority on how to safely work on electrical equipment using lock/tag out procedures and verifying absence of voltage. Following the advice of this video will put anyone at risk of electrocution.

Seriously? Advertising that no C-wire required, and here we go 🤷‍♂️ Returning this misleading product. I have very basic 2 wire heating system and it will NOT work without c-wire.

This is not an installation video, it is a PR video. You dont once show what it actually looks like or might look like. you also don't own that for previous years this can cause issues that are vague. I spent a year several service calls and a damaged compressor due to your choice not to be honest and upfront with possibility of failure. I can handle an correctable issue, i cant handle hiding and obfuscating it, then releasing confusing less than useful video to correct it. Please do better, or even, do good.

Google有難うございます！gmail反抗してゴメン☪︎ *.┈┈┈┈┈┈profile┈┈┈┈┈┈☕︎ name: gender: age: like: よろしくですฅ"

Screw nest and google hardware product developers! They suck!

Mine will not work. Wired correctly, doesn't work

This crap is such a knock off scam mine just says go to the google app and the app never picks up the thermostat honestly google with the amount of people there you’d figure you’d be able to make something user friendly instead of changing your search website every month 0-5 starts hate this purchas

Or you could just buy a thermostat that isn’t a complete money racket like Things pile of shit.

This Sucks

WHERE THE HELL IS THE POWER CONNECTOR SET-UP FOR THE CAMERA CAMERA CAMERA? THIS IS THE WORST PATHETIC "OWNERS MANUAL" I'VE EVER SEEN.

I for one very upset that Google did not come into my house, inspect my furnace, give me detailed instructions and increase my IQ so that this would be so easy that I wouldn't want to look up any Google videos. Obviously a conspiracy

I’m HIGHLY disappointed by the entire setup process.

My furnace doesn't have a control board and doesn't have a c/com wire to use which is why I bought this useless item. I guess if you don't have enough wires to the thermostat is useful but it doesn't create a c/com

Very disappointed and Google Nest is a pain now .

Very very poor instructions.

For a multi billion dollar company they could have done something far better than this. What the **** is this PICTURE video? They couldn't have hired a LOCAL technician to come to a LOCAL home and record himself ACTUALLY doing the installation????? Get out of that OFFICE, get some fresh AIR nerds!

Can u pls tell me pixel 5a launch date ?👇

Can u Pls tell me pixel 5a release date?

Why all this when it's easier to add a c wire than to do all this? More wiring than just adding one simple wire to the whole thing. I don't get it