When your Lennox heat pump model SL22KLV displays Error Code 121, it indicates a low pressure switch open fault that requires immediate attention to prevent further damage. You'll need to inspect the … [Read more...]
Lennox SL22KLV Heat Pump Error Code 118: Indoor Airflow Restriction Detected (Clogged Filter/Blocked Duct)
When your Lennox heat pump model SL22KLV displays error code 118, you're dealing with airflow issues, likely caused by a clogged filter or blocked duct. Reduced airflow, increased energy bill, and … [Read more...]
Lennox SL22KLV Heat Pump Error Code 117: Faulty Pressure Switch Detected
When your Lennox SL22KLV heat pump displays error code 117, it's a clear indication of a faulty pressure switch, a critical component responsible for monitoring system pressure levels and preventing … [Read more...]
Lennox SL22KLV Heat Pump Error Code 111: System Overvoltage Detected
If you're seeing error code 111 on your Lennox SL22KLV heat pump, it means system overvoltage, which can cause premature wear on electrical components and reduce efficiency. This issue can lead to … [Read more...]
Lennox SL22KLV Heat Pump Error Code 110: System Low Voltage Detected
When your Lennox heat pump model SL22KLV displays error code 110, it's a clear indication of system low voltage, which can be caused by a refrigerant leak, low refrigerant charge, or communication … [Read more...]
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