E-22
TROUBLESHOOTING
Front panel open?
The unit does not operate when the front panel is
detached.Install properly.
Is the CHECK light flashing?
If so, call the Customer Service.
Clean the filter or replace it.
Remove dust on the sensor.
Check the problems first and then unplug the power cord.Call the Customer Service to
ask for after-sale service or make inquiries.
There is too much dust on the
sensor?
There is too much dust on the
electronic cell?
Automatic function
does not work properly
When other problems
in terms of functions
are found
When functions do not
work
The system does not
operate at all
Power failure?
Power plug disconnected?
The FUSE out of order?
There is too much dust on the
Pre-filter,electronic cell, carbon filter?
The air inlet or outlet blocked?
There is no dust on the sensor.
Wash it and dry completely before installing it.
Get rid of foreign materials around the product.
Call the Customer Service.
Check other electrical appliances.
Make sure to insert the plug.
Replace the FUSE with new one.
