08-30-2021 09:26 AM
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Original Poster: Jef 9327
Nest 3rd generation learning thermostat. E80 no power to Y wire. This happened once when installed and the circuit breaker was tripped. 96°F outside. AC is on and producing cold but E80 error persists. It ran for a month so before this incident. Please help.
08-30-2021 09:26 AM
09-08-2021 06:57 PM
Check the water pan, drain could be clogged causing your water sensor to trip shutting your system down. That's what happened to mine. Please remember to turn off all power to the unit before touching it.