Question about Honeywell Programmable Thermostat Heater
My old programmable thermostat got fried on Jan 1 with no stores openned. Managed to find a UPM THM303M thermostat.
We AC and gas furnace with blower. 4 wires coming out of thermo: red, green, white, black.
Prior thermo had red to R, green to G, white to W and I believe black to Y but not 100 % certain.
Installed same layout to new thermo but now blower stays on indefinitely when fan set to auto. When I switch the Cool / Heat switch to the off position, the blower will stop but I don't want the blower/fan on one the furnace stops.
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Posted on Jan 02, 2017
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