cannot connect, wires undetected

[sviscarra]

I've just attempted to install my thermostat.

It keeps saying "no power" and "y c w g r" not detected.

I've turned the breaker off. Waited. Turned it back on and re-attempted the setup thru Google Home app, with the same results.

I cannot get it to recognize the c wire. Or connect to the wifi.

Any help would be appreciated.

 

[David_K]

There's some good steps to try for this here:

Thermostat wire undetected or unconfigured - Google Nest Help

[sviscarra]

the wires are clean.

and unfortunately i cannot access any settings on the thermostat cause it won't connect.

[David_K]

Strange that's it's not detecting any of your wires. Has it ever worked or does it always display that error? Do you know what gauge wire it is? Anything smaller than 22 gauge wire could be too thin for Nest Thermostat to detect.

[sviscarra]

It hasn't connected since I purchased it. Just throws that error.

I believe the gauge is not too small. It appears to fit in the connectors pretty well.

[David_K]

Let me ask a community specialist if there's any further troubleshooting options or steps we can try here.

[Markjosephp]

Hello there,

Thanks for helping here, @David_K.

@sviscarra, It's possible that the system won't supply the thermostat or a particular wire with any power at all, or the common wire may not be properly grounded. But I wanted to stop by and see how I could help.

Please give these steps a try:

1. Make sure that the power to your HVAC system is turned on at the breaker.
2. Remove the C wire and leave it disconnected.
3. Restart the thermostat by removing the batteries for at least 3 minutes to refresh.
4. Try adding it again to the Google Home app.

Please note that you should turn off the power to your HVAC unit at the breaker before touching the wires and let us know how it goes.

Regards,

Mark

[Markjosephp]

Hello sviscarra,

I'm checking back in. Were you able to do the steps above? I'd be glad to hear from you — we'd like to make sure everything is working.

Thanks,

Mark

[sviscarra]

no resolve. sorry the late reply. waiting for the nest power connector to arrive. installed and same issue. nothing.

[sviscarra]

it works! thanks for your help!

[EmersonB]

Hello folks,

@sviscarra thanks for getting back to us and we're glad that it's resolved now. We can consider this one complete so let us know if you have other questions or concerns as I will be locking this after 24 hours. Feel free to start a new thread and we'll be happy to help.

I appreciate the help, Mark and davidking.

Best,
Emerson