Troubleshooting Guide - Kärcher AF 20 Bedienungsanleitung

1. Switch off the device, and disconnect the power
supply unit from the socket and device.
Illustration J
2. Turn the device over, and turn the filter cover lock 90
degrees clockwise.
Illustration B
3. Remove the filter cover.
Illustration C
4. Remove the filters.
Illustration D
5. Unpack the new filters.
Illustration E
6. Insert the unpacked filters. Ensure that the draw
shackles are visible and point inwards.
Illustration F
Malfunctions often have simple causes that you can remedy yourself using the following overview.
When in doubt, or in the case of malfunctions not mentioned here, please contact your authorised Customer Service.
Fault
The device cannot be
switched on
Airflow is reduced
Odour elimination inef-
fective
Poor air quality

Troubleshooting guide

Cause
No electrical voltage present
Power supply unit defective
Device defective
Filter cover not inserted correctly
Filter clogged
Filter not unpacked
Fan level too low
Air outlet is blocked
Poor ambient air quality
Filter used up or used too long
Fan level too low
Fan level too low
Draught
Room size clearly above 20 m²
Air slots on the device blocked
Filter not unpacked
Filter clogged or contaminated.
7. Put on the filter cover and turn the lock 90 degrees
anticlockwise. Turn the device over with the display
facing upwards.
Illustration G
8. Connect the power supply unit to the device and
socket.
9. Switch the device on.
a To reset the filter (Reset), press the symbol
for 3 seconds.
Illustration K
Rectification
 Check the socket and the power supply
fuse.
 Insert the plug of the power supply unit into
another socket.
 Contact Customer Service to replace the
power supply unit.
 Contact Customer Service.
 Insert the filter cover correctly, making sure
that the filters are seated correctly.
 Changing the filter, see chapter Replacing
the filter.
 Unpacking the filter, see chapter Inserting
the filter.
 Increasing the fan level, see chapter Set-
ting the fan level.
 Remove foreign bodies.
 Open windows to improve ventilation.
 Replace the filter.
 Increasing the fan level, see chapter Set-
ting the fan level.
 Increasing the fan level, see chapter Set-
ting the fan level.
 Close the windows and doors while the de-
vice is working.
 Observe the maximum room size.
 Keep the required distances from the de-
vice.
 Do not place anything on the device.
 Unpacking the filter, see chapter Inserting
the filter.
 Changing the filter, see chapter Replacing
the filter.
English 11