
Troubleshooting aid
Problem
Cause
Solution
Air purifier does not switch
on
Mains plug not plugged in
Plug in the mains plug
Power button not pressed
Press the power button.
Power socket is de-energised
Check the fuse and the switch for the socket
used.
Air cleaner defective
Carefully disconnect the air purifier from the
power supply. Do not use the unit any more.
Contact your salesperson or FeinTech.
Plug or cable damaged
Air purifier does not respond
to button
LOCK activated (LOCK flashes)
Press LOCK for 3 seconds.
Unit or socket is de-energised
Check the fuse and switch for the socket in use
and that the power cord is plugged in.
Air purifier defective
Carefully disconnect the air purifier from the po-
wer supply. Do not use the appliance any more.
Contact your salesperson or FeinTech.
Air purifier makes unusual
noise
Filter is dirty
Please clean or replace the filter.
Filter is not inserted correctly
Insert the filter correctly
Filter is still packed
Remove the filter packaging before use
Foreign body has penetrated
Carefully disconnect the air purifier from the
power supply. Do not use the unit any more.
Contact your salesperson or FeinTech.
Significantly reduced air
output
Filter is dirty
Please clean or replace the filter.
Filter is still packed
Remove the filter packaging before use
Too little air inlet
Ensure sufficient distance of approx. 30 cm to
all sides
Poor air purification
Filter not inserted correctly or dirty
Make sure the filter is correctly seated
Space too large
Use the air purifier in a smaller room
Air inlet or outlet is blocked
Make sure there are no openings
Filter indicator still on after
filter change
Filter indicator has not been reset
correctly
Reset the filter indicator again (see p. 5).
Air purifier switches off au-
tomatically without a timer
being active
Air cleaner is defective
Carefully disconnect the air purifier from the
power supply. Do not use the unit any more.
Contact your salesperson or FeinTech.
Air purifier beeps several
times after switching on and
does not run