09-01-2021 09:58 AM
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Original Poster: Chuck Bukhari
I’ve had the Nest Learning Thermostat for over a year and everything was working fine until 2 days ago, the fan started turning on and off then when I did the troubleshooting on the nest unit I got the error codes e103 and t102. The cables are correct as the diagram, and I even removed the Y1 and installed it again but no luck