High pressure blockage or complete refrigerant leakage detected

What does High pressure blockage error mean?

This self-diagnostic error indicates either a blockage in the high-pressure side of the system or a complete loss of refrigerant. This will prevent the unit from operating.

• The outdoor unit service valve is not fully open.
• Problem with refrigerant pipe connections.
• Electronic Expansion Valve (EEV) not operating correctly.
• Complete refrigerant leakage from the system.

Click steps to track your progress.

1. 1

   Ensure the outdoor unit service valve is fully open.

2. 2

   Check all refrigerant pipe connections for leaks or damage.

3. 3

   Power cycle the air conditioner to reset the system.

4. 4

   If the issue persists, a qualified technician should inspect the EEV and check for refrigerant leakage.