E463 (Red ON, Green Blink, Yellow OFF) — Over current trip / PFC over current error

What does E463 mean?

The outdoor unit's PCB LED displays E463 when an excessive current flow is detected, specifically an overcurrent trip related to the Power Factor Correction (PFC) circuit. This triggers a protective shutdown.

• OLP sensor malfunction
• Electrical overload in the PFC circuit
• Faulty components within the inverter or PFC circuit

Click steps to track your progress.

1. 1

   Turn off the main power to the outdoor unit at the circuit breaker.

2. 2

   Wait for at least 5 minutes for the system to clear any residual charge.

3. 3

   Restore power and attempt to restart the air conditioning system.

4. 4

   If the error persists, contact a qualified technician to check the OLP sensor and PFC circuit components.