12-time blink 2.5 seconds OFF — Compressor phase current abnormality

What does 12-time blink 2.5 seconds OFF mean?

The outdoor unit LED blinks 12 times with a 2.5-second pause. This indicates that each phase current of the compressor cannot be detected normally.

• Compressor phase current detection failure
• Inverter/compressor malfunction

Click steps to track your progress.

1. 1

   Turn off the power to the air conditioner at the circuit breaker.

2. 2

   Reconnect the compressor's connector to ensure a proper connection.

3. 3

   Restore power and attempt to run the unit.

4. 4

   If the error continues, a qualified technician should check the inverter/compressor system.