04-02-2025 07:33 PM
Could someone please help me set up my 4th Gen Thermostat?
I have a Lennox X15 heat pump and a G50UH-36B gas furnace. The heat pump stopped working many years ago, and our HVAC company bypassed it but could still run the ac. I recently purchased the 4th Gen Thermostat and have been struggling to wire it so that it only controls the gas furnace and the AC—completely bypassing the heat pump.
The previous thermostat was wired as follows:
C = black wire
O = orange
W2 = white
W/E = jumper wire from W2
RH = red
RC = jumper wire from RH
G = green
Y = yellow
Any help would be greatly appreciated!
04-03-2025 03:52 PM
If the heat pump stopped working several years ago, then the A/C could not still work, as the heat pump is the A/C.
The only thing that could work is the Gas furnace.