What does E231 mean?

This error indicates a short or open circuit in the outdoor unit's condenser outlet temperature sensor.

• Cond-Out sensor Open/Short.
• Faulty temperature sensor connector.

Click steps to track your progress.

1. 1

   Turn off the unit's power.

2. 2

   Check the connection of the outdoor condenser outlet sensor connector.

3. 3

   Verify the sensor's resistance value to ensure it's within the normal range (refer to manual's table).

4. 4

   Reconnect the temperature sensor connector securely and power on the unit.