You're encountering a defrost mode issue with your Lennox Heat Pump Model XP25, indicated by Error Code 453. This code signifies a problem with the system's ability to function correctly. You'll need … [Read more...]
Lennox XP25 Heat Pump Error 452: Low Pressure Switch Open Detected
You're facing a low pressure switch open error on your Lennox XP25 heat pump, indicated by error code 452. This error typically occurs during winterizing or air conditioning modes and signifies a … [Read more...]
Lennox XP25 Heat Pump Error Code 445: Low Compressor Discharge Temperature Detected
You've noticed your Lennox heat pump, model XP25, is displaying error code 445 - a low discharge temperature issue that can't be ignored. This error affects the system's overall efficiency and … [Read more...]
Lennox XP25 Heat Pump Error Code 442: Compressor Top Cap Switch Lockout Triggered
When your Lennox XP25 heat pump displays error code 442, it's indicating a compressor top cap switch strikes lockout, a critical system fault that requires prompt attention to prevent further damage … [Read more...]
Lennox XP25 Heat Pump Error Code 440: Compressor Slowdown Due to High Heat Sink Temperature
When your Lennox XP25 heat pump displays error code 440, it means the compressor has slowed down due to a high heat sink temperature. This could be caused by refrigerant leaks, clogged air filters, … [Read more...]
