E465 (Red OFF, Green ON, Yellow Blink) — Compressor Overload error

What does E465 mean?

The outdoor unit's PCB LED displays E465 when the compressor detects an overload condition, meaning it is working too hard. This can be a protective measure to prevent damage.

• Restricted airflow to the outdoor condenser coils
• Dirty indoor unit air filters
• High refrigerant pressure or incorrect refrigerant charge
• Compressor malfunction

Click steps to track your progress.

1. 1

   Ensure the outdoor unit's condenser coils are clean and free of debris, allowing for unrestricted airflow.

2. 2

   Check the indoor unit's air filters and clean or replace them if they are dirty.

3. 3

   Turn off the main power to the outdoor unit at the circuit breaker for 30 minutes to allow the compressor to cool.

4. 4

   Restore power and attempt to restart the system. If the overload continues, contact a qualified technician.