24
EN
11. Maintenance / fault finding
Warning: Danger of electric shock
The device must be disconnected from the power supply system before any maintenance work is carried
out on it. Electrical components must not be cleaned with a water hose or pressure washer, as water
could penetrate the electrical component and cause an electric shock.
When dismantling components, please turn the screws by hand to avoid damage to the
threads!
Fault detection and elimination
Problem
Possible reason
Solution
The unit does not respond
to switch-on
▪
No power to the
device
▪
Device does not stand
on
a plain surface
▪
Front cover is not
closed properly
▪
Child lock is active
1. Make sure that the power plug is fully
inserted into the power outlet, then press
the power button to turn on the unit
2. Make sure that the front cover is inserted
correctly.
3. Make sure that the product is properly
installed on a plain surface.
4. When the display shows the child-proof
lock, press the
“
Child-
Lock”
button for 5
seconds to deactivate the lock and use the
device.
Air is polluted but the
display shows clean
(green)
Device position is
unfavourable
Position the unit differently so that the air in
the room can be better absorbed.
The air quality display is
still very poor (red), even
though the product has
been switched on for a
long time.
Air sensor is dirty
Clean the particle sensor with a cotton
bud as described in "cleaning and filter
change".
If a strange noise
(knocking, chirping)
comes out of the device
Ionizer i s dusty
Clean the ionizer head with a brush as
described in section "cleaning and filter
change".
If the product smells
strange
Filter is saturated
1. Clean the air inlet opening and internal
filter (pre-filter, integrated filter).
2 If you have not replaced the filter for a
long time, buy a new filter and replace it.
If the product does not
noticeably improve air
quality even after a long
period of operation
▪
Filter not removed
from protective
packaging
▪
Filter not inserted
correctly
1. Make sure that the packaging of the filter
(plastic bag) inside the product has been
properly removed
2. Make sure that the order of the filter
combination is correct
When the product is
switched on and shortly
after it is automatically put
into sleep mode
Wrong operating mode
Please deactivate the sleep mode (night
mode).
Summary of Contents for HL 800
Page 27: ...27 FR...
