When you see error code 434 on your Lennox XP25 heat pump, it means a complete loss of communication with the inverter, disrupting the system's performance and ability to provide reliable heating and … [Read more...]
Lennox XP25 Heat Pump Error Code 429: Inverter DC Link Low Voltage Detected
You're experiencing an error code 429 on your Lennox XP25 heat pump, indicating an inverter DC link low voltage issue. This can be caused by low mains voltage, a faulty DC link capacitor, or an … [Read more...]
Lennox XP25 Heat Pump Error Code 425: Compressor Running at Minimum Speed Due to Low Ambient
You're experiencing error code 425 on your Lennox XP25 heat pump, which means the compressor's minimum speed is triggered by low ambient temperatures, typically below 40°F. You'll need to verify the … [Read more...]
Lennox XP25 Heat Pump Error Code 422: Compressor Top Cap Switch Overtemperature
You're experiencing an error code 422 on your Lennox XP25 heat pump, indicating a compressor top cap switch overtemperature issue. This can substantially impact your system's performance and … [Read more...]
Lennox XP25 Heat Pump Error Code 423: Inverter Circuit Problem Detected
You're facing an error code 423 on your Lennox Heat Pump Model XP25, indicating an inverter-detected circuit problem. It's vital to address this issue to prevent further damage. You'll need to … [Read more...]
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