Operation LED blinks 7 times — VDD permanent STOP protection (electric air cleaner).

What does Operation 7 Times (No display) mean?

An error with the electric air cleaner has occurred, specifically after the air cleanness monitor protection operated 4 times.

• The front panel of the unit is not properly closed.
• The IAQ (Indoor Air Quality) micro switch is not operating correctly.

Click steps to track your progress.

1. 1

   Check the front panel of the unit and ensure it is fully and securely closed.

2. 2

   Reset the power to the unit (turn off at the breaker, wait 30 seconds, then turn back on) and see if the error clears.

3. 3

   If the issue persists, professional service is required to check the IAQ micro switch.