What Causes High Head Pressure?
High head pressure indicates elevated refrigerant pressure on the condenser side of the system.
This condition can trigger safety lockouts.
Common Causes
- Dirty condenser coil
- Failed condenser fan motor
- Refrigerant overcharge
- Non-condensable gases in system
- Blocked condenser airflow
Troubleshooting
- Inspect and clean condenser coil
- Verify condenser fan operation
- Measure refrigerant pressures
- Check ambient temperature conditions
Persistent high head pressure can damage the compressor.
FAQ
Can high outdoor temperature cause this?
Yes, but the system should still operate within design limits.