When you see error code 142 on your Lennox SL22KLV heat pump, it means the heat pump setting is incorrect. You'll need to check your thermostat settings, ensuring they match the current season and … [Read more...]
Lennox SL22KLV Heat Pump Error 141: Sensor Fault Detected (Defrost/Indoor/Outdoor)
If you're experiencing error code 141 on your Lennox heat pump model SL22KLV, it indicates a compressor lockout problem, likely due to a faulty temperature sensor, stuck reversing valve in defrost … [Read more...]
Lennox SL22KLV Heat Pump Error Code 140: Reverse Cycle Fault Detected
When your Lennox SL22KLV heat pump displays error code 140, indicating a Reverse Cycle Fault, you need to address the issue promptly to avoid damage and expensive fixes. Check your thermostat settings, … [Read more...]
Lennox SL22KLV Heat Pump Error Code139: Short Cycling Detected (Rapid On/Off Cycling)
If you're encountering error code 139 on your Lennox heat pump model SL22KLV, indicating short cycling or unit cycling too quickly, it's likely due to a range of possible causes including a clogged air … [Read more...]
Lennox SL22KLV Heat Pump Error Code 133: High Outdoor Temperature Causing Overheating
When your SL22KLV Lennox heat pump displays error code 133, it means high outdoor temperature, which you'll want to address promptly to prevent further issues with your HVAC system. This error can … [Read more...]
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