Upper lamp blinks 5 times - Outdoor power system abnormality

What does 5-time blink (2.5-second OFF) mean?

The upper operation indicator lamp blinks five times with a 2.5-second pause. This error indicates repeated issues with the outdoor unit's power system, such as overcurrent protection trips or startup failures.

• Outdoor unit overcurrent protection triggered
• Outdoor unit compressor startup failure
• Faulty outdoor power system component

Click steps to track your progress.

1. 1

   Refer to the 'How to check of inverter/compressor' section.

2. 2

   Consult the outdoor unit service manual for specific diagnostics.

3. 3

   Check the stop valve on the outdoor unit.