topic Re: High power readings in Nest Thermostats

High power readings

Katm995 — Wed, 05 Apr 2023 18:45:01 GMT

my power readings for my nest thermostat seem very high. I do not have a c wire installed. I have Y-G-R-W. The picture is when the unit is on. Similar readings when it is off. I also hear a clicking noise when I am close to the thermostat and it’s running. Is this normal or should I be concerned?

Re: High power readings

listairee — Tue, 04 Apr 2023 22:29:21 GMT

Hello @Katm995,

Thanks for reaching out. Here are the ideal power range if there isn't a C wire in your thermostat, according to Google:-

Voc: 29 to 42V
Vin: 29 to 42V when your system is not running (6 to 7V when your system is running)
Iin: 20 to 40 mA

It looks normal for the voltage readings.

Hope that helps! 🙂

Re: High power readings

Katm995 — Tue, 04 Apr 2023 22:34:35 GMT

Mine is over 30 V when it is running. Doesn’t seem like the normal range you listed

Re: High power readings

listairee — Wed, 05 Apr 2023 16:41:23 GMT

Hello @Katm995,

Is it possible for you to provide an image on your wiring to further help you diagnose?

Thank you.

Re: High power readings

Katm995 — Wed, 05 Apr 2023 18:45:47 GMT

I added the pics to the original post

Re: High power readings

zoeuvre — Sat, 08 Apr 2023 22:10:17 GMT

Hi @Katm995,

Thank you for taking the time to contact us. It appears that you're experiencing power-related issues. To better check this, can you please help me with the make and model of your HVAC system?

I'll look forward to your response.

I appreciate the help, @listairee.

Regards,
Zoe

Re: High power readings

Jenelyn_O — Tue, 11 Apr 2023 22:51:34 GMT

Hi there,

Chiming in — I just wanted to know if you still need help. Please let us know, as I'll be willing to assist you further.

I appreciate your help, @listairee and Zoe.

Best,
Jenelyn

Re: High power readings

Jenelyn_O — Wed, 12 Apr 2023 23:20:50 GMT

Hello there,

We haven't heard from you in a while so we'll be locking this thread if there is no update within 24 hours. If you need assistance or want to discuss topics, feel free to start a new thread.

Thanks,
Jenelyn