English
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Troubleshooting guide
DANGER
Inadvertently starting up device
Risk of injury, electric shock
Turn the key-operated switch to "0" and re-
move the key before performing any work
on the device.
Pull out the charger mains plug.
Drain and dispose of the waste water
and fresh water.
Contact Customer Service in the case of
malfunctions that cannot be corrected
using this table.
Warranty
The warranty conditions issued by our rele-
vant sales company apply in all countries.
We shall remedy possible malfunctions on
your appliance within the warranty period
free of cost, provided that a material or
manufacturing defect is the cause. In a war-
ranty case, please contact your dealer (with
the purchase receipt) or the next author-
ised customer service site.
(See overleaf for the address)
Accessories
Malfunction
Rectification
The device cannot be started
1. Turn the key-operated switch to "1".
2. Actuate the safety switch.
3. Insert the battery plug.
4. Check the battery and charge if necessary.
5. Check that the battery terminals are correctly connected.
The water volume is insuffi-
cient
1. Check the fresh water filling level and fill the tank if necessary.
2. Increase the water volume at the water volume regulating knob.
3. Clean the fresh water filter.
4. Check the hoses for clogging and clean if necessary.
The suction performance is
too low
1. Shut down the device and drain the waste water.
2. Clean the seals between the waste water tank and the cover, check for leaks and replace if neces-
sary.
3. Check that the suction hose is correctly connected to the waste water tank.
4. Check the fluff filter for soiling and clean if necessary.
5. Clean the suction lips at the suction bar, turn over or replace if necessary.
6. Check that the cap on the waste water drain hose is closed.
7. Check the adjustment of the suction bar.
8. Check the suction hose for clogging and clean if necessary. The white marking on the hose must
lie at the retaining clip when the suction hose is re-inserted.
9. Check the suction hose for leaks and replace if necessary.
The cleaning results are un-
satisfactory
1. Reduce the driving speed.
2. Check the brushes for wear and replace if necessary.
3. Check the suitability of the brush type and detergent used.
The suction turbine runs at
an increased speed
1. Drain the waste water.
2. Clean the float.
3. Check the fluff filter and clean if necessary.
4. Check the suction hose for clogging and clean if necessary.
5. Check the suction bar for clogging and remove any clogging if necessary
The brushes do not rotate
1. Check if the brushes are blocked by a foreign body and remove the foreign body if necessary.
The device vibrates during
cleaning
1. Use a softer brush.
Description
BD 70/75
part no.
BD 80/100
part no.
Description
Disc brush, white (soft)
4.905-011.0 4.905-030.0 For cleaning lightly soiled or sensitive floors
Disc brush, natural colour (soft)
4.905-012.0 4.905-031.0 Made of natural fibres for cleaning and polishing
Disc brush, red (medium, standard) 4.905-010.0 4.905-000.0 For use in all common cleaning tasks
Disc brush, black (hard)
4.905-013.0 4.905-032.0 For heavy soiling and basic cleaning, only for non-sensitive surfaces
Pad drive board
4.762-590.0 4.762-447.0 For cleaning with pads, with quick-change coupling and centre-lock
Pad, white
–
6.371-331.0 For polishing floors
Pad, red (medium soft)
6.369-003.0 6.371-147.0 For cleaning all floors
Pad, green (medium hard)
6.369-002.0 6.371-148.0 For cleaning heavily soiled floors and for basic cleaning
Pad, black (hard)
6.369-001.0 6.371-169.0 For stubborn soiling and for basic cleaning
Pad, brown (SPP)
2.639-290.0 2.639-288.0 For protective film application on hard and elastic surfaces
Pad, melamine
6.371-021.0 6.371-336.0 For effective cleaning of micro-porous surfaces
Suction bar, 1030 mm, curved
4.777-108.0 –
Suction bar, 1160 mm, curved
–
4.777-102.0
Suction lip set, natural rubber
4.037-144.0 4.037-138.0
Suction lip set, PU (oil resistant)
4.037-145.0 4.037-140.0
Suction lip set, Linatex
4.181-011.0 4.181-006.0
