Frequently Asked Questions
With the help of the following guide minor faults in the performance of the ma-
chine, some of which may result from incorrect operation, can be remedied with-
out contacting the Service Department. Time and money will be saved because a
service call will not be needed.
This guide may help you to find the reason for the fault, and how to correct it.
Risk of electric shock from voltage.
The supply voltage is applied to the appliance even if it is switched off.
Before dealing with any problems, unplug the appliance from the electrical
socket.
Problem
The vacuum cleaner
turns off automatically.
The ComfortClean but-
ton lights up in yellow.
The ComfortClean but-
ton lights up in red.
The vacuum cleaner
switches itself to the
lowest power setting.
Possible cause and solution
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 foot switch . Unplug the vacuum
cleaner from the electrical socket.
After removing the cause of the fault, wait for approx-
imately 20–30 minutes to allow the vacuum cleaner
to cool down. It can then be turned on again.
The vacuum cleaner carries out an automatic clean-
ing process which you can hear running.
Wait for approx. 20 seconds until this cleaning
process has finished.
The dust container is full.
Empty the dust container.
The pre-filter is dirty.
Clean the pre-filter (see "Frequently asked ques-
tions - Cleaning the pre-filter").
The fine dust filter is dirty.
Clean the fine dust filter at the next available op-
portunity (see "Frequently asked questions -
Cleaning the fine dust filter manually").
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