P3
Compressor over-current protection
This code typically points to
- Poor heat exchange
- Fan failure
- Valves not open
- Restriction
- Overcharge
- Control board issue
- Compressor issue
Next checks to confirm
- Verify operating conditions
- Check compressor current
- Evaluate refrigerant circuit
Escalation
Persistent overcurrent threatens compressor.
Reset behavior
Self-clears when condition normalizes.
Urgent
Fix now