H23 — Indoor refrigerant liquid temperature sensor abnormality

What does H23 mean?

The sensor that measures the refrigerant liquid temperature within the indoor unit is faulty. This error triggers if the abnormality continues for 5 seconds.

• Indoor refrigerant liquid temperature sensor is defective.
• Indoor refrigerant liquid temperature sensor is disconnected.

Click steps to track your progress.

1. 1

   Turn off the power supply to the unit at the main breaker and wait 30 seconds before turning it back on.

2. 2

   Check the physical connection of the indoor refrigerant liquid temperature sensor for any signs of looseness or damage.

3. 3

   If the error persists, contact a qualified technician to inspect or replace the sensor.