Nest Y1 always hot

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Nest Y1 always hot

Post  idean628 on Sun Apr 27, 2014 5:01 pm

Nest Gen2 thermostat, Y-G-Rc-W-C connected to HVAC.  

With Y connected, compressor always runs.  Simply disconnected Y for the winter to debug later, but now I'm trying to get it all to work correctly.

Measures 25V between C and Y, no matter if Nest is set to Heat, Cool, or Off.  It seems to always call for cooling.

Any suggestions?

idean628
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Re: Nest Y1 always hot

Post  id628 on Sun Apr 27, 2014 5:02 pm

Forgot to say, unit is simple Oil heat furnace, simple A/C, forced air.

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