Karcher BD 50/40 RS Bp Pack: Faults

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7



Press the brush change key and tilt the 

cover on the brush head towards the 

side.



Pull out the brush rollers.



Insert and lock into place the new brush 

rollers.



Close the cover, align the brushes and 

lock in the cover.



Swivel the spray guard back.



Swivel the unlocking lever downward.



Set programme selection to "Drive".



Turn key to "0" and remove it. 



Pull out the suction hose from the vacu-

um bar. 

1 Suction hose

2 Suction bar coupling



Pull out the suction hose from the vacu-

um bar. 



Loosen the suction bar coupling.



Remove the vacuum bar.



Dismantle the vacuum bar.

1 Lock nut



Unscrew the knurled nuts.



Remove the suction bar insert from the 

bottom of the suction bar.

1 Vacuum lip

2 Suction bar insert



Remove the vacuum lips from the suc-

tion bar insert.

Note

The vacuum lips can be turned thrice till all 

edges are worn off. After that you need a 

new vacuum lip.



Reverse the suction lip or replace it and 

rehook it into the hooks of the suction 

bar insert. 



Place the suction bar insert into the suc-

tion bar.



Screw on the knurled nuts and tighten 

them.



Lift the cleaning head. 



Turn key to "0" and remove it. 



Turn the unlocking lever of the sliding 

brush in an anti-clockwise direction - 

the brushes will fall downward and can 

be pulled outward at the bottom of the 

device.



Hold the new brush under the cleaning 

head.



Turn the unlocking lever of the sliding 

brush in clockwise direction and press 

the brush upward.



Release the unlocking lever and check 

that the brush is sitting properly.



Replace the spray-guard.



Repeat process on the opposite side. 

1 Sieve with floater ball

2 Pipe



Clean the sieve from the outside and 

rinse it.



Check the mobility of the floater ball. 

If it is too dirty:



Hold the pipe firmly and pull out the 

sieve from the pipe.



Clean sieve and ball. 



Hold the pipe firmly and reinsert the 

sieve.

In case of danger of frost:



Empty the fresh and dirt water reser-

voirs.



Store the appliance in a frost-protected 

room.



Danger

Risk of injury! Before carrying out any tasks 

on the machine, set the main key to "0" and 

remove it. Pull out the battery plug.

Note

Suction turbine will continue to run for a 

while after switch-off. Carry out mainte-

nance tasks only after the suction turbine 

has come to a halt.

In case of faults that cannot be remedied 

using the table below please contact the 

customer service. 

Maintenance tasks BD 50/40 RS

Dismantling the vacuum bar

Replace or turn vacuum lips

Replacing the disk brushes

Maintenance tasks - all types

Cleaning the floater

Frost protection

Faults

21 EN

     - 

8

A blinking battery display indicates the fol-

lowing faults. The time sequence of the 

blinking segments indicates the type of 

fault.



Before restarting the charger, pull the 

plug out of the socket, wait until the 

charge status indicator shuts off and 

plug the mains plug back in.

Errors shown by the battery indicator

Number of flashes Fault

Remedy

1

Battery discharged oder battery cable damaged.

Check battery cable, charge battery.

2

Cable to drive motor interrupted.

Inform Customer Service

3

Cable to drive motor shorted.

4

Deep discharge power not reached

Charge battery.

5

--

--

6

Drive attempt while charger is connected (Bp Pack 

model only).

Remove the power plug from the charger and hook the 

holder into the appliance (model Bp Pack only).

7

Fault in drive pedal.

Release the drive pedal prior to turning on the appliance.

8

Control faulty.

Inform Customer Service

9

Parking brake fault.

10

Shorted connection on battery connection.

Check the terminals on the batteries.

Once every 5 sec-

onds

Control idle.

Turn the main switch to "0" and turn it back to "1". 

Errors shown by the charge status indicator (only Bp Pack model)

Blinking signal

Fault

Remedy

Blinks red

Battery poled or is not connected

Check battery cable for correct sitting.

Blinks green and 

yellow.

Cable connection between battery and charger is 

poor.

Check battery cable for correct sitting.

Check whether the connection to the battery was interrupt-

ed during the charge process.

Battery defective

Check battery. 

22 EN