What does 20 mean?

An indoor component has experienced a thermal overload, likely due to restricted airflow or a malfunctioning motor.

• Restricted airflow to the indoor unit
• Faulty indoor fan motor
• Overheating of internal components

Click steps to track your progress.

1. 1

   Check and clean the air filter of the indoor unit.

2. 2

   Ensure there are no obstructions blocking airflow into or out of the indoor unit.

3. 3

   Verify the indoor fan motor is operating correctly.

4. 4

   If the problem persists, professional service may be required.