Red 4 Pulses, Green Blinks, Yellow Off (AUY, ABY & AWY) — Drain Problem

What does Drain Problem (AUY, ABY & AWY) mean?

The red LED shows 4 pulses, the green LED blinks, and the yellow LED is off. This indicates a problem with the unit's condensate drainage, likely due to a high water level.

• Clogged or blocked condensate drain line.
• Full drain pan due to inadequate drainage.
• Faulty condensate pump (if installed).

Click steps to track your progress.

1. 1

   Turn off the air conditioner to prevent water overflow.

2. 2

   Check the condensate drain pan for excess water and carefully remove it if full.

3. 3

   Inspect and clear any blockages from the condensate drain line (often a small pipe exiting the indoor unit).

4. 4

   Ensure the unit is level to facilitate proper drainage.

5. 5

   If the problem continues, contact a technician to inspect the drain system or pump.