Troubleshooting steps
Check refrigerant charge, clean condenser, verify airflow
HVAC Error Codes
Lennox E34 Error
High discharge temperature
Details
Lennox E34 error indicates high discharge temperature. Low refrigerant charge, dirty condenser, poor airflow. Check refrigerant charge, clean condenser, verify airflow.
Error typeerror
MeaningHigh discharge temperature
Typical causesLow refrigerant charge, dirty condenser, poor airflow
SolutionsCheck refrigerant charge, clean condenser, verify airflow
Severityhigh
Catalog references
Where this appears
LennoxE34
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What causes E34 error?
Low refrigerant charge, dirty condenser, poor airflow
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