www.DrevalAir.com
12
T R O U B L E S H O O T I N G
When the filter system must be cleaned or replaced
Problem
Solution
No air comes out from
the outlet
Please check whether the product is turned
on and connected to the power supply.
Outlet airflow is
significantly weakened
than before
The filters are dirty and they need to be
cleanedW or replaced. You can gently shake
the filters to remove the dust and other
objects on it.
The filter packaging bag is not removed.
Please remove the filter packaging bag.
The air quality is not
significantly improved
after
long run of the machine
Check the filter layers installation sequence.
Filters are worn out, you need to replace all
the filters.
When should I replace the
filters
The first filter: The surface is dirty and fades
in color. The tiny hole of the cold catalyst
is blocked by dust or the color of the active
carbon has obviously changed. Life time:
8-14 months.
The second filter: The white HEPA changes to
yellow, black, or mildew. Life time: 8-14
months.
Remarks: The filter life span is determined by
the environment airquality andthe duration
used.
Alarm is Generated
Check if the water tank is empty.
Powered Down
Check if the anti-fall off switch is properly
switched off.