Red 3 Pulses, Green Blinks, Yellow Off (AUY, ABY & AWY) — Pipe Sensor Open Circuit

What does Pipe Sensor Open (AUY, ABY & AWY) mean?

The red LED shows 3 pulses, the green LED blinks, and the yellow LED is off. This indicates an open circuit condition in the pipe temperature sensor, meaning the sensor is either disconnected or faulty.

• Disconnected pipe sensor.
• Broken sensor wire.
• Faulty pipe sensor element.

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power supply.

2. 2

   Carefully inspect the pipe sensor connections for any looseness or damage (this may require professional access).

3. 3

   Restore power to the unit.

4. 4

   If the error continues, professional service is needed to replace the sensor or repair the wiring.