Indoor Heat Exchanger Sensor Error — Open or Short circuit

What does Indoor HX Sensor Error mean?

This error signals a problem with the temperature sensors that monitor the heat exchanger coils inside the indoor unit. These sensors are crucial for efficient operation.

• Loose heat exchanger sensor connection.
• Short or open circuit in the sensor.

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power switch or circuit breaker.

2. 2

   Visually inspect the indoor unit for any obvious obstructions to airflow, such as dirty filters, which can affect sensor readings. Clean or replace filters if necessary.

3. 3

   Restore power after a few minutes and check if the error clears.

4. 4

   If the issue remains, contact customer support for further diagnosis.