UE (1302) - High pressure trouble

What does UE mean?

The system has detected excessively high pressure within the refrigerant circuit. This can occur due to various operational issues and will cause the Mitsubishi Electric PUMY Air Conditioner system to stop.

• High refrigerant pressure due to system imbalance
• Malfunction of the outdoor unit fan
• Dirty or blocked outdoor condenser coil
• Refrigerant overcharge

Click steps to track your progress.

1. 1

   Note the error code displayed on the remote controller or outdoor unit.

2. 2

   Visually check if the outdoor unit's fan is running properly and if the condenser coils are clean and free of debris.

3. 3

   Power off the Mitsubishi Electric PUMY Air Conditioner system at the main electrical breaker.

4. 4

   Wait for at least 30 seconds, then restore power to the system.

5. 5

   If the error persists, contact a qualified service technician to diagnose the refrigerant system.