Operating instructions

14 English
Troubleshooting guide
 DANGER
Inadvertently starting up device
Risk of injury, electric shock
Turn the key-operated switch to "0" and remove 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 malfunction
s
th
at cannot be corrected using this table.
Warranty
The warranty conditions issued by our relevant sales com-
pany apply in all countries. We shall remedy possible mal-
functions on your appliance within the warranty period free
of cost, provided that a material or manufacturing flaw is
the cause. In a warranty case, please contact your dealer
(with the purchase receipt) or the next authorized custom-
er 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 button.
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 insuf-
ficient
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 necessary.
3. Check that the suction hose is correctly connected to the waste water tank.
4. Check the fluff filter for contamination 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. When fitting the suction
hose
aga
in, the white marking on the hose must lie at the retaining clip.
9. Check the suction hose for leaks and replace if necessary.
The cleaning results are
unsatisfactory
1. Reduce the driving speed.
2. Check the brushes for wear and tear 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 nec-
essary.
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 contaminated or sensitive floors
Disc brush, natural color (soft) 4.905-012.0 4.905-031.0 Made of natural fibers for cleaning and polishing
Disc brush, red (medium, stan-
dard)
4.905-010.0 4.905-000.0 For use in all common cleaning orders
Disc brush, black (hard) 4.905-013.0 4.905-032.0 For heavy contamination and basic cleaning, only for non-sen-
sitive surfaces
Pad drive board 4.762-590.0 4.762-447.0 For cleaning with pads, with quick-change coupling and cen-
ter-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