topic Re: Fan not working in Nest Thermostats

Fan not working

EricDewey — Thu, 20 Apr 2023 23:07:14 GMT

Nest thermostat been working fine for two and a half years. Fan is not coming in for heat, cool or manually turning fan on.

rebooted - still not working

did a factory rest and reinstalled - still not working

called HVAC tech. He said it’s the Nest thermostat as we disconnected and put on basic thermostat and it came right on

Checked all wiring with HVAC tech and all functioning properly

please help

Re: Fan not working

Houptee — Fri, 21 Apr 2023 11:44:33 GMT

It is probably out of warranty. You proved the system works with a std tstat.

Most gas and electric utility companies have an online marketplace and sell the nest with substantial discounts.

Re: Fan not working

EricDewey — Mon, 24 Apr 2023 11:18:47 GMT

Thanks Houptee for the response.

checked my utility company and same price as nest website.

very disappointed that a $200 thermostat only lasted 2.5 years. It’s supposed to help save money on bills not need replacing after a few years.

Nest support team - anything you all can do? Would t you want to know why the thermostat just stopped controlling the fan after 2.5 years?

Re: Fan not working

Jenelyn_O — Tue, 20 Jun 2023 20:28:28 GMT

Hi there,

Thanks for reaching out. I'm sorry for the delay. I know it's been a while now. If your fan works perfectly after installing your old thermostat, your Nest Thermostat fan (G) terminal might be the one at fault. I suggest checking this link to see if there's any promotion for Nest Thermostats.

I appreciate your help, @Houptee.

Best,

Jenelyn

Re: Fan not working

Gnadenthal — Wed, 28 Jun 2023 00:11:39 GMT

I have the same experience. Everything with Nest worked fine for years. Then last week the Nest just stopped activating the fan. We hooked up a regular manual thermostat and everything works fine. There is proper voltage to activate the fan. Seems like planned obsolescence...