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en
51
Problem solving guide
Many malfunctions and faults that can occur in daily operation can be easily
remedied. Time and money will be saved because a service call will not be
needed.
The following guide may help you to find the reason for a malfunction or a fault,
and to correct it.
Risk of electric shock from mains voltage.
The mains voltage is applied to the appliance even if it is switched off.
Before dealing with any problems, switch the appliance off at the wall socket
and unplug it.
Problem Cause and remedy
The vacuum cleaner
switches off automatic-
ally.
A temperature limiter switches the vacuum cleaner
off automatically if it gets too hot. This can occur
when the airways are blocked by bulky objects.
Switch the vacuum cleaner off immediately using
the On/Off footswitch. Switch off at the wall
socket and unplug it.
After removing the cause, wait for approximately 20–
30 minutes to allow the vacuum cleaner to cool
down. It can then be switched on again.
The ComfortClean but-
ton is lit up yellow.
The vacuum cleaner is running an automatic cleaning
process which you can hear running.
Wait for approx.20seconds until this cleaning
process has finished.
The ComfortClean but-
ton lights up red.
The vacuum cleaner
has switched to the
lowest power level.
The dust container is full.
Empty the dust container.
The pre-filter is dirty.
Clean the pre-filter (see “Fault resolution” –
“Cleaning the pre-filter”).
The fine dust filter is dirty.
Clean the fine dust filter at the next available op-
portunity (see “Fault resolution” – “Cleaning the
fine dust filter manually”).
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