Red 5 Pulses, Green Blinks, Yellow Blinks (AUY, ABY & AWY) — Outdoor PCB or Wiring Error

What does OD PCB or Wiring Error (AUY, ABY & AWY) mean?

The red LED shows 5 pulses, the green LED blinks, and the yellow LED blinks. This indicates a problem specifically with the outdoor unit's PCB or its associated wiring.

• Faulty outdoor unit PCB.
• Damaged or loose wiring connections within the outdoor unit.
• Electrical short or open circuit in the outdoor unit's electrical system.

Click steps to track your progress.

1. 1

   Turn off the main power to the entire air conditioning system.

2. 2

   Wait a few minutes, then restore power to reset the outdoor unit's electronics.

3. 3

   If the error persists, contact a qualified HVAC technician.

4. 4

   Do not attempt to open or repair the outdoor unit's PCB without professional training.