Red Blinks, Green 6 Pulses, Yellow Off (AUY, ABY & AWY) — High Pressure

What does High Pressure (AUY, ABY & AWY) mean?

The red LED blinks, the green LED shows 6 pulses, and the yellow LED is off. This indicates that the air conditioning system is detecting excessively high pressure in the refrigerant circuit.

• Overcharged refrigerant.
• Dirty or obstructed outdoor condenser coil.
• Outdoor fan not operating correctly.
• Restriction in the refrigeration system.

Click steps to track your progress.

1. 1

   Turn off the unit immediately at the circuit breaker.

2. 2

   Ensure the outdoor unit's coils are clean and free of any debris that could block airflow.

3. 3

   Check that the outdoor fan blades are spinning without obstruction when the unit is powered on (after ensuring safety).

4. 4

   If the error persists, contact an HVAC professional to check refrigerant levels and system components.