Indoor float sensor error — Water level detection fault

What does Indoor floating switch secondary detection mean?

The indoor unit's float sensor has detected an issue, likely indicating a high water level in the drain pan. This is a self-diagnostic error and will cause the unit to turn off.

• Faulty indoor unit float sensor.
• Problem with the indoor PCB connector CN5 (black).
• Clogged condensate drain line or overflowing drain pan.

Click steps to track your progress.

1. 1

   Check the indoor unit float sensor for proper function and connection.

2. 2

   Inspect the indoor PCB connector CN5 (the black connector) to ensure it is securely connected.

3. 3

   Check the drain pan for water overflow and ensure the condensate drain line is not clogged.

4. 4

   Power cycle the air conditioner.