Left lamp flashes 5 times — Outdoor power system error

What does 5 (5-time flash) mean?

The left Operation Indicator lamp flashes five times, followed by a 2.5-second off period. This indicates that the compressor has stopped due to overcurrent protection or start-up failure protection three consecutive times within one minute after starting.

• Compressor overcurrent protection activated.
• Compressor start-up failure protection activated.
• Problems with the outdoor unit's inverter or compressor.
• Blocked stop valve (on the outdoor unit).

Click steps to track your progress.

1. 1

   Turn off the main power supply to the unit, wait for a few minutes, then turn it back on to reset the system.

2. 2

   Visually inspect the outdoor unit for any obvious obstructions around the fan or coils.

3. 3

   Ensure that the stop valve (on the outdoor unit, typically for refrigerant lines) is fully open. If unsure, do not attempt to adjust and contact a technician.

4. 4

   If the issue persists, refer to the outdoor unit service manual or the 'How to check of inverter/compressor' section (implied in section 10-6) for further diagnosis, which requires a qualified technician.