A5-00 — OU: High pressure peak cut / freeze protection problem

• Refrigerant overcharge
• Blocked airflow over the outdoor coil
• Malfunctioning pressure sensor

Click steps to track your progress.

1. 1

   Ensure the outdoor unit's air intake and outlet are clear.

2. 2

   Check for excessive refrigerant levels (requires a technician).

3. 3

   Listen for unusual sounds from the compressor.

4. 4

   Contact a qualified HVAC technician.