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Midknight · 09-25-2022

I have two questions.I have an oil burner with central AC, and two zones upstairs and downstairs. If I set the downstairs to either heat or cool will the upstairs Nest Learning thermostat also switch automatically?The second question is my system doe...

Midknight · 10-17-2022

I have one more question about your B/O terminals on the thermostat. What are their functions, in other words, which terminals are connected when in the heat or the cool mode? If B connects to R in the heat mode and O connects to W in the cool mode t...

Midknight · 09-25-2022

I would suspect the contactor in your AC unit is faulty or your start/run capacitor is defective in your AC unit.

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Re: Thermostat turns off & then back on within 1 second