Troubleshooting - Kärcher NT 22/1 Ap L Originalbetriebsanleitung

– The outside of the unit should be
cleaned thoroughly and any harmful
substances removed. Alternatively, a
sealed coating may be applied before
the unit is removed from the danger ar-
ea. All unit parts are to be considered
contaminated when they are removed
from the danger area. To avoid distribu-
tion of the dust, you must take the ap-
propriate measures.
– In the framework of maintenance and
repair work all contaminated objects
that cannot be cleaned satisfactorily
must be disposed of. Such objects must
be disposed of in impermeable bags in
accordance with the valid provisions for
the disposal of such waste.
WARNING
Safety equipment for preventing hazards
must be serviced and maintained regularly.
This means that the manufacturer's staff or
persons trained by the manufacturer must
check the equipment for proper functioning
at least once a year, i.e. check for leaks, fil-
ter damage, etc.
ATTENTION
Risk of damage! Do not use detergents
containing silicone to clean.
– No outside help is required for carrying
out basic maintenance and cleaning.
– The appliance surface and the inside of
the container should be cleaned regu-
larly using a damp cloth.
DANGER
Risk due to dust hazardous to health. Al-
ways use disposal clothing and P2 or high-
er breath-safe masks while carrying out
maintenance tasks (such as changing fil-
ters).
Change cartridge filter
 Release and remove the suction head.
 Turn the suction basket by 180° and
keep it aside.
 Loosen the mounting nuts
 Remove the cartridge filter.
 Dispose of the used cartridge filter ac-
cording to the statutory provisions.
 Insert the new cartridge filter.
 Insert the fastening nut and tighten it.
 Insert and lock the suction head.
Exchange the fleece filter bag
Illustration
 Release and remove the suction head.
 Pull out the fleece filter bag on the
flange towards the top.
 Fold in the lock latch and tightly close
the fleece filter bag.
 Dispose of the fleece filter bag accord-
ing to the local provisions.
 Insert the new fleece filter bag.
 Insert and lock the suction head.

Troubleshooting

DANGER
First pull out the plug from the mains before
carrying out any tasks on the machine.
Note: In case of a failure (e.g. filter break-
age) the appliance must be turned off im-
mediately. The failure must be remedied
before the appliance is put into operation
again.
Suction turbine does not run
 Check the receptacle and the fuse of
the power supply.
 Check the power cable, the power plug
and possibly the receptacle of the de-
vice.
 Turn on the appliance.
Vacuum turbine is running but the
machine is not sucking in dust/dirt
– Float is blocking the suction canal.
 Empty the dirt container.
Suction capacity decreases
 Remove choking of suction nozzle, suc-
tion tube, suction hose, or cartridge fil-
ter.
 Replacing the full fleece filter bag.
 Press the semi-automatic filter dedust-
ing key five times with the appliance
switched on.
 Change cartridge filter.
– 5
EN 17