AC - Malfunction of drain level sensor (Indoor Unit)

What does AC mean?

This error indicates an issue with the sensor that monitors the water level in the unit's drain system. It might be detecting an incorrect level or failing to detect.

• Drain level sensor malfunction
• Clogged drain line
• Wiring issue with the sensor

Click steps to track your progress.

1. 1

   Turn off the power to the unit.

2. 2

   Check if the drain line is clear and not blocked.

3. 3

   Ensure the drain pan is not overflowing.

4. 4

   Restore power and see if the code disappears.

5. 5

   If the problem persists, professional service is recommended.