Troubleshooting steps
Check air filter, verify airflow, check refrigerant charge
HVAC Error Codes
Lennox F14 Error
Indoor coil freeze protection
Details
Lennox F14 error indicates indoor coil freeze protection. Low airflow, dirty filter, low refrigerant. Check air filter, verify airflow, check refrigerant charge.
Error typefault
MeaningIndoor coil freeze protection
Typical causesLow airflow, dirty filter, low refrigerant
SolutionsCheck air filter, verify airflow, check refrigerant charge
Severityhigh
Catalog references
Where this appears
LennoxF14
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FAQ
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What causes F14 error?
Low airflow, dirty filter, low refrigerant
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