Red Blinks, Green Blinks, Yellow Off (AUY, ABY & AWY) — Indoor PCB Failure

What does ID PCB Fail (AUY, ABY & AWY) mean?

The red and green LEDs blink, while the yellow LED is off. This indicates a failure of the Printed Circuit Board (PCB) in the indoor unit.

• Internal electrical fault.
• Power surge damage.
• Component failure on the PCB.

Click steps to track your progress.

1. 1

   Turn off the unit's main power supply at the circuit breaker.

2. 2

   Wait for at least 30 seconds to allow the system to fully reset.

3. 3

   Restore power to the unit.

4. 4

   If the error persists, contact a qualified service technician for PCB replacement.