XX-03 — Compressor high pressure switch fault

What does XX-03 mean?

The high-pressure switch for a compressor (e.g., B1) has activated, likely due to low condenser flow, a blocked valve, fan issues, or high entering air/water temperature. The compressor will be shut down.

• Low condenser fluid flow rate.
• Blocked condenser valve.
• Faulty condenser fan.
• High temperature of air/water entering the condenser.

Click steps to track your progress.

1. 1

   Check for and clear any blockages in the condenser.

2. 2

   Ensure condenser fans are operating correctly.

3. 3

   Verify the temperature of fluid entering the condenser.

4. 4

   If the issue persists, consult a technician.