Have a Lennox CB29M-31-2P Heat Pump. AC compressor is working but unit is blowing warm air from the duct. Upon inspection of the coil it was very cold but the bellows transitioning from the plenum seemed warmer than it should be. There were two circuit breakers on the furnace unit 1 30 amp 1 60 amp. I switched one off (30 amp) and it seemed to be the fan. I turned it back on and switched off the the other breaker (60 amp). The AC now seems to be working and is cooling the house. I am using a white Rodgers programmable thermostat not sure the model I think 1F80 Not sure if this is a thermostat issue or something else.