Indoor heat exchanger thermistor abnormality — Temperature sensor fault

What does Indoor heat exchanger thermistor abnormality mean?

This error indicates that the temperature sensor (thermistor) monitoring the indoor heat exchanger is not functioning correctly. This can affect temperature regulation.

• Faulty thermistor
• Loose or damaged wiring to the thermistor
• Dirt or debris on the thermistor

Click steps to track your progress.

1. 1

   Ensure the air filters are clean to allow proper airflow over the heat exchanger.

2. 2

   Turn off the power to the unit for 30 seconds and then restore it to reset the system.

3. 3

   If the error code continues to display, contact your dealer or installer.