Kärcher BD 40/12 C, Manual, Page: 25 / 374

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Faults without display
Fault Remedy
Appliance cannot be started Check charging status of battery.
Check/replace main fuse.
Insufficient water quantity Check fresh water level, refill tank if necessary.
Switch on "Detergent" button.
Open the water volume regulating valve.
Clean the fresh water filter.
Insufficient vacuum perform-
ance Switch on "suction turbine" button.
Empty the dirt water reservoir.
Clean the seals between dirt water reservoir and cover
and check for tightness, replace if required.
Clean the vacuum lips on the vacuum bar, turn or replace
if required
Check if the suction hose and vacuum bar are chocked,
clean if required
Check the suction hose for tightness; replace if required.
Check if the cover on the dirt water discharge hose is
closed
Adjustment of the vacuum bar, adjust if necessary.
Insufficient cleaning result Check the brush type and the detergent for their suitability.
Check the brushes for wear, replace if required.
Brushes do not turn Switch on the button for brush operations.
Check if foreign matters block the brushes; remove foreign
matter if required.
Turn off the switch for the brush operation; wait briefly and
switch it back on.
25 EN