OPERATION INDICATOR lamp blinks 5 times — Outdoor power system error

What does OPERATION INDICATOR 5 blinks mean?

The indoor unit's upper lamp blinks five times. This occurs when the compressor stops three times consecutively due to overcurrent protection or startup failure protection within one minute of starting. This indicates an issue with the outdoor power system.

• Overcurrent protection triggered in the outdoor unit
• Compressor startup failure in the outdoor unit
• Stop valve issues on the outdoor unit

Click steps to track your progress.

1. 1

   Refer to 'How to check of inverter/compressor' in the outdoor unit service manual.

2. 2

   Check the stop valve on the outdoor unit to ensure it is fully open.

3. 3

   Turn OFF the power supply to the unit at the circuit breaker for a few minutes, then restore power to reset.

4. 4

   Contact a qualified technician to check the outdoor unit's power system, inverter, and compressor.