E153 - Indoor float switch error (2nd detection)

What does E153 mean?

This error indicates that the indoor unit's float switch has detected a high water level, possibly due to a drain pump issue or blockage.

• Indoor unit Float Switch Open/Short.
• Drain Pump operation issue.
• Drain hose blockage.

Click steps to track your progress.

1. 1

   Turn off the unit's power and check the indoor unit's drain pan for excess water.

2. 2

   Inspect the drain hose for any blockages or kinks.

3. 3

   Verify the drain pump operation by checking for obstructions.

4. 4

   Ensure the float switch is not stuck and its connections are secure.