Left/Upper lamp blinks 7 times — Outdoor control system abnormality

What does Left/Upper lamp 7-time blink mean?

This indicates a fault within the outdoor unit's control system, possibly related to its P.C. board memory. The unit may not operate normally.

• Outdoor control system malfunction
• Cannot read data from outdoor P.C. board memory
• Faulty outdoor electronic control P.C. board or inverter P.C. board

Click steps to track your progress.

1. 1

   Refer to the outdoor unit service manual for detailed troubleshooting.

2. 2

   Check the blinking LED patterns on the inverter P.C. board.

3. 3

   Replacement of the outdoor electronic control P.C. board or inverter P.C. board may be needed.