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Karcher B50 W Manual

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Malfunctions with information shown on the display
Li-Ion battery status indicator
1Status LED
2Indicator LED 1
3Indicator LED 2
4Indicator LED 3
5Indicator LED 4
6Battery
7Button
1. Press the button for 5 seconds.
●No LED lights up: Charge the battery.
●The status LED lights up green: Together, all 5
LEDs indicate the battery charge state.
●The status LED lights up red: The indicator LEDs
indicate a malfunction. Malfunctions described in
the following table can be remedied by the user.
Contact KÄRCHER Customer Service in the case of
fault displays that are not described above.
The suction turbine runs at an in-
creased 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.
2. Set the program switch to the desired program.
3. Lower the cleaning head.
The device vibrates during cleaning 1. Check that the brush(es) are correctly installed.
2. Use a softer brush.
3. Renew the brush.
DOSE version only: The detergent
dosing device does not work
1. Check the detergent level in the detergent canister.
2. Increase the detergent dosage.
3. Check the connection of the detergent hose to the detergent canister.
4. Clean the filter in the detergent canister.
5. Check the check valve in the hose to the cleaning head for blockage.
6. Check the hoses for leaks.
7. Check the functionality of the detergent pump.
The waste water drain hose is clogged 1. Open the dosing unit cover at the drain hose.
2. Pull the suction hose off the suction bar and close it by hand.
3. Set the program switch to a programme with suction.
The blockage is sucked out of the drain hose into the waste water tank.
Malfunction Rectification
Malfunction Cause Rectification
INSERT KIK No intelligent key inserted. Insert an intelligent key.
INCORRECT KIK The inserted Intelligent Key does not authorise the execution
of the selected function.
Use a different Intelligent Key.
Possibly have the Intelligent Key used activated (depending on
the case).
NO AUTHORISATION The inserted Intelligent Key does not authorise the execution
of the selected function.
Use a different Intelligent Key.
Possibly have the Intelligent Key used activated (depending on
the case).
RELEASE HANDLE SWITCH! When the device is switched on, a driving lever is operated. Release both driving levers.
BATTERY LEVEL LOW The battery is almost empty. The cleaning functions of the de-
vice are automatically switched off.
Drive the device to the charging station and charge the battery.
BATTERY EMPTY The battery is empty. The cleaning functions and the travel
drive are switched off.
Switch off the device, wait briefly and switch it on again. The drive
to the charging station. If necessary, push it to the charging station
when it is switched off. Charge the battery.
WATER FLOW FAULT The electric water valve is defective. Contact customer service.
DRIVE MOT. OVERL. The current consumption of the driving motor is too high. Check the travel drive train for foreign objects.
Find a path with a lower gradient.
Switch off the device, wait briefly, switch the device on again.
DRIVE MOT. BLOCK. The driving motor is blocked. Check the travel drive train for foreign objects.
Jack up each drive wheel individually and check whether it can be
turned.
(1) (2) (3) (4) (5) Cause Rectification
red - - - - The battery is too hot. Allow the battery to cool down.
red - - - green The battery management system is too hot. Allow the battery to cool down.
red - - green - The battery is too cold for charging. Move the device to a warmer place and wait until the battery has warmed up.
red - - green green The current consumption during charging is
too high.
Unplug the mains plug of the charger. Wait 10 seconds. Reinsert the mains
plug. If the malfunction is displayed again, replace the charger.
The current consumption of the device is too
high.
Switch off the device. If the malfunction occurs again after switching on, look
for the fault in the device.
red - green - green Short-circuit. Check all battery connections.
red - green green - Cell voltage too low during discharge. Charge the battery.
red - green green green Cell voltage too high during charging. Discharge the battery to 20% remaining capacity. Then charge the battery.
red green - - green The battery voltage is too low. Charge the battery.
red green - green - Malfunction during charging process. Unplug the mains plug of the charger. Wait 10 seconds. Reinsert the mains
plug. If the malfunction is displayed again, replace the charger.
red green - green green
red green green - - The battery is too cold to output power. Move the device to a warmer place and wait until the battery has warmed up.
red green green green - Power output malfunction. Switch off the device. If the malfunction persists, contact Customer Service.
… 20 …


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