F17 - Indoor unit freezing abnormality

What does F17 mean?

This error indicates that the indoor unit's standby unit is freezing. It occurs when the difference between indoor intake air temperature and indoor pipe temperature is too high, or the indoor pipe temperature is too low.

• Incorrect wiring connections
• Faulty sensor
• Faulty expansion valve

Click steps to track your progress.

1. 1

   Check for correct wiring connections to the indoor unit.

2. 2

   Inspect the sensor for any damage or disconnections.

3. 3

   Verify the expansion valve is functioning correctly.

4. 4

   If issues persist, contact a licensed technician for further diagnosis and repair.