E5 / Outdoor LED1 flashes 22 times — Internal unit antifreeze protection

What does E5 mean?

The indoor unit has detected a temperature that is too low, activating antifreeze protection to prevent damage. This usually occurs if the indoor coil gets too cold.

• Pipe temperature sensor issue
• Indoor PCB issue
• Indoor motor issue (possibly affecting heat exchange)

Click steps to track your progress.

1. 1

   Ensure the air filters are clean and not blocked, as dirty filters can restrict airflow.

2. 2

   Check for any obstructions around the indoor unit that might restrict airflow.

3. 3

   Turn off the unit at the main power switch and wait for 5 minutes, then restart.

4. 4

   If the problem persists, contact a qualified technician.