Outdoor Board LED1 (green) blinks three times and LED2 (red) blinks seven times alternately - Compressor overcurrent breaking (Start-up locked)

What does UP mean?

During startup or operation, the outdoor unit's LED1 (green) blinks three times and LED2 (red) blinks seven times alternately, indicating compressor overcurrent protection activation, potentially due to a locked compressor during startup.

• Compressor overcurrent breaking (startup locked).
• Compressor motor winding fault.
• Power supply issue.

Click steps to track your progress.

1. 1

   Check for looseness, disconnection, or incorrect connection of the compressor wiring.

2. 2

   Measure resistance values among terminals on the compressor using a tester.

3. 3

   Check if the power supply voltage is stable and within the specified range.

4. 4

   If the issue persists, a qualified technician should inspect the compressor.