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en-US
186
Problem Possible cause and solution
The cleaning perfor-
mance is poor.
The dust container is full.
Empty and clean the dust container (see “Mainte-
nance”).
The Electrobrush is dirty/blocked.
Clean the Electrobrush (see “Maintenance” –
“Cleaning the Electrobrush” and “Removing the
roller brush from the Electrobrush”).
Cleaning performance
is reduced.
The fine dust filter/pre-filter is soiled.
Run the interim cleaning function for the fine dust
filter (see “Maintenance” – “Activating the Com-
fortClean function”).
Clean both filters thoroughly (see “Maintenance” –
“Cleaning the pre-filter and fine dust filter”).
The fine dust filter is worn.
Insert a new fine dust filter (HXFSF-2).
The roller brush is not
rotating.
The roller brush is dirty.
Clean the roller brush (see “Maintenance” –
“Cleaning the Electrobrush” and “Removing the
roller brush from the Electrobrush”).
The operating noise is
changing during vacu-
uming.
The Electrobrush power consumption is automati-
cally set to the optimum level based on the type of
flooring and roller brush used.
The noise is not unusual – the vacuum cleaner is
functioning normally.
The Electrobrush
switches itself off.
The Electrobrush is overloaded – this can happen on
surfaces like deep-pile carpet.
Switch the vacuum cleaner off and switch it on
again at a reduced suction power level. Use the
On/Off switch on the Comfort handle to do this.
The vacuum cleaner
keeps falling over.
You have configured the vacuum cleaner with the
PowerUnit at the top.
Reassemble the vacuum cleaner so that it is con-
figured with the PowerUnit at the bottom (see “In-
stallation and connection” – “Assembling the vac-
uum cleaner”).
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