My nest thermostat will not go into defrost mode. At night if the outside temp falls below 40° my outdoor unit will get a layer of ice and cold air will blow inside the house. I had someone look at it and they told me it's the thermostat not sending the signal to defrost. What do I do? I have 6 wires Y, C, G, O/B, R, and W2.
Thanks for reaching out. A couple question to help you troubleshoot further:-
If everything was working before you installed the Nest thermostat, it is very likely that you did not installed it correctly and you'll have to recheck your installation. I've included a step-by-step guide to help with that.
Hope that helps! 🙂
Thanks for reaching out. I'm sorry for the delay. I just want to confirm if you were able to try the recommendation of listairee. Also, do you see any messages or code on your thermostat screen?
I appreciate your help, @listairee.
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