OPERATION INDICATOR lamp blinks 7 times — Outdoor control system error

What does OPERATION INDICATOR 7 blinks mean?

The indoor unit's upper lamp blinks seven times, indicating that the system cannot properly read data from the nonvolatile memory of the inverter P.C. board or the outdoor electronic control P.C. board. This suggests an issue with the outdoor unit's main control boards.

• Corrupted data on the inverter P.C. board
• Corrupted data on the outdoor electronic control P.C. board
• Malfunction of the inverter P.C. board or outdoor electronic control P.C. board

Click steps to track your progress.

1. 1

   Turn OFF the power supply to the unit at the circuit breaker for at least 30 seconds, then turn it back on.

2. 2

   If the problem persists, the inverter P.C. board or the outdoor electronic control P.C. board may need replacement.

3. 3

   Contact a qualified technician for further diagnosis and repair.