Outdoor Board LED green (once) and red (once) blink alternately after startup - Incorrect connection of outdoor terminal block

What does F1 mean?

After the initial 'startup' sequence, if the outdoor unit's LED1 (green) blinks once and LED2 (red) blinks once alternately, it indicates an incorrect connection of the outdoor terminal block (L1, L2, S1, S2, S3).

• Incorrect connection of outdoor terminal block (L1, L2, S1, S2, S3).

Click steps to track your progress.

1. 1

   Turn off the main power supply to the unit.

2. 2

   Carefully check the connections of the outdoor terminal block (L1, L2, S1, S2, S3) and ensure they are correct.

3. 3

   Restore power and re-check the display.