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Nest Thermostats

Blog Posts

Troubleshoot a W5 Code on Nest Thermostat Read more

Nest Renew: How do you save energy during the Holiday season? Read more

Forum Posts

Need help with setup? Troubleshoot common Nest Thermostat problems

Here are some steps I recommend to resolve issues during the setup of Nest Thermostats.Before trying these stepsMake sure you're using the correct app for setup. Need help checking which model you have? Use the Google Home app to set up the following...

David_K by Platinum Product Expert
  • 0 replies
  • 6 kudos

Resolved! Error M20/E298

Thermostat keeps saying "no power" and giving error codes M20 & E298 no matter what I do. I correctly installed the c-wire power connector. There are no shorted fuses on my control board. My furnace is powering just fine.When I look at the equipment ...

Chergirl9 by Community Member
  • 12 replies
  • 2 kudos

Resolved! Radiators from 1 of 3 zones turning on for no reason

I have 3 nest 3rd gen learning thermostats for zoned 3 story house. Gas heating with rads and water. It’s summer so the heating should not be switching on but the last few weeks we have noticed that the middle level rads come on even though it’s not ...

Tqon by Community Member
  • 3 replies
  • 0 kudos

Wiring help

 I have a white wire in the B port, throwing me off. Any advice? I have baseboard heading and central a/c system. Thanks

Rz21 by Community Member
  • 6 replies
  • 0 kudos

H71 error Nest - no lights on heat link

Earlier today I started getting the h71 error on both my thermostats. They are usually connected to 2 heat links. Both heat links have no lights.I've checked the fuse/trip switches. I've tried resetting. Nothing works.I've got a 3 year old and no hot...

Storm26 by Community Member
  • 3 replies
  • 0 kudos


I need help wiring up my nest thermostat with a heat pump furnace 

Jgretz02 by Community Member
  • 1 replies
  • 0 kudos

Resolved! Is the wiring backwords?

I give up. I am a pretty savvy electrical trouble shooter, but I am stumped. I wired in the Learning Nest, and nothing I do gets the AC to come on. The blower always works, and I've even been able to get the heater to work (when I wire it to the AC l...

watersjc by Community Member
  • 21 replies
  • 0 kudos
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