Why am i getting an e80 error code (no power to Y1 connector) with new (2 weeks) Nest 3rd Gen Thermo

[rgaila]

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Original Poster: Nicholas Buhay 

Checked breaker to AC, its ON.

Checked AC unit, its off (fan not turning); checked fan inside house, its ON

[2t2operator]

Check your water pan to make sure your water sensor has not tripped or is wet?  My unit was working great after I installed the nest thermostat first time in this new house it rained today and when I came home I noticed this error after some troubleshooting I realized my drain pan was not draining and the water sensor had tripped, shutting the system down, once I cleared the water out of the pan the unit began to work again.  Please remember to turn off all power to the unit before touching any part of it.