Upper lamp blinking seven times — Outdoor control system memory error

What does Upper lamp blinks 7-time blink 2.5-second OFF mean?

The system cannot properly read data from the non-volatile memory of the inverter P.C. board or the outdoor electronic control P.C. board. The unit will not operate.

• Corrupted data in outdoor control board memory
• Faulty inverter P.C. board
• Faulty outdoor electronic control P.C. board

Click steps to track your progress.

1. 1

   Replace the inverter P.C. board or the outdoor electronic control P.C. board.

2. 2

   Refer to the outdoor unit service manual.