Upper lamp blinks 7 times — Outdoor Control System Error

What does Upper lamp blinks 7 times mean?

The upper lamp on the indoor unit blinks seven times, indicating an error in the outdoor control system. This means the inverter P.C. board or the outdoor electronic control P.C. board cannot properly read data from its nonvolatile memory.

• Faulty inverter P.C. board in the outdoor unit
• Faulty outdoor electronic control P.C. board
• Data corruption within the nonvolatile memory of the outdoor control board

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power supply breaker.

2. 2

   Wait for at least 30 seconds, then turn the main power supply back on.

3. 3

   Press the RESET button on your remote controller.

4. 4

   If the error persists, contact a qualified service technician for inspection and potential replacement of the outdoor unit's control board.