Outdoor Board LED1 (green) blinks three times and LED2 (red) blinks six times alternately - Abnormality of outdoor fan motor rotational speed

What does UF mean?

During startup or operation, the outdoor unit's LED1 (green) blinks three times and LED2 (red) blinks six times alternately, indicating an abnormality in the rotational speed of the outdoor fan motor.

• Outdoor fan motor rotational speed abnormality.
• Obstruction to the outdoor fan.
• Faulty fan motor or control circuit.

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 outdoor unit has a short cycle on its air duct, impeding fan performance.

4. 4

   Inspect the outdoor fan motor for correct operation and clear any obstructions.