No response error address from indoor unit — Indoor unit not responding

What does No response error address from indoor unit mean?

The outdoor unit is not receiving a response from one of the indoor units at its assigned address. This indicates a communication breakdown and stops the system from operating.

• Incorrect quantity setting of indoor units in the outdoor unit.
• Faulty electrical connection to the indoor unit.
• Incorrect communication settings.

Click steps to track your progress.

1. 1

   Check the indoor unit quantity setting configured in the outdoor unit.

2. 2

   Verify all electrical connections for the indoor unit and the outdoor unit.

3. 3

   Ensure all settings are correctly configured for the number of indoor units connected.

4. 4

   Perform a power cycle by turning off and then turning on the main power to the air conditioner.