Upper lamp blinks 7 times - Outdoor control system issue

What does 7-time blink (2.5-second OFF) mean?

The upper operation indicator lamp blinks seven times with a 2.5-second pause. This error signifies that the outdoor electronic control board or inverter P.C. board cannot properly read data from its memory.

• Faulty outdoor electronic control P.C. board
• Faulty inverter P.C. board
• Memory corruption on outdoor control boards

Click steps to track your progress.

1. 1

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

2. 2

   Consult the outdoor unit service manual for specific replacement procedures.

3. 3

   Ensure stable power is supplied to the outdoor unit.