Red Blinks, Green 4 Pulses, Yellow Blinks (AUY, ABY & AWY) — Outdoor Unit Air Sensor Short Circuit

What does OD Unit Air Sensor Short (AUY, ABY & AWY) mean?

The red LED blinks, the green LED shows 4 pulses, and the yellow LED blinks. This indicates a short circuit in the outdoor ambient air temperature sensor or its wiring.

• Short circuit within the sensor itself.
• Damaged wiring causing a short.
• Moisture or debris causing a short in the sensor connections.

Click steps to track your progress.

1. 1

   Turn off the power supply to the air conditioner at the circuit breaker.

2. 2

   Inspect the outdoor unit for any obvious signs of physical damage or moisture around the sensor area.

3. 3

   Restore power after a few minutes.

4. 4

   If the error persists, a qualified technician will need to test the sensor and wiring for a short circuit.