11-25-2021 08:50 PM
I installed my new Nest Learning Thermostat and connected the 3 wires (Power, AC, Heat) The furnace turns on and heats when it is supposed to but when it turns off the fan runs continuously on low speed instead of turning off. This didn't happen with my old thermostat.
11-25-2021 09:38 PM
... it is a 2 stage furnace.