Indicator lamp blinks 3 times (21-second intervals) — Air filter needs cleaning

What does 3 blinks 21s interval mean?

This specific blinking pattern of the indicator lamp signals that the air filter requires cleaning. This function must be correctly set during installation to be active.

• Accumulated dust and debris on the air filter after a period of use.

Click steps to track your progress.

1. 1

   Turn off the air conditioner and disconnect all power supply.

2. 2

   Clean the air filter according to the instructions in the manual (refer to page 9).

3. 3

   After cleaning, push the designated button on the indoor unit for 2 seconds or less to reset the filter indicator.