![background image](/i/karcher/167870/karcher-kmr-1250-b/h/karcher-kmr-1250-b-026.png)
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11
Troubleshooting
Fault
Remedy
Appliance cannot be started
Sit on the driver seat, the seat contact switch gets activated
Charging or replacing battery
Refuel
Open fuel cock
Fill in motor oil
Inform Kärcher Customer Service.
Engine is running erratically
Clean or replace air filter
Inform Kärcher Customer Service.
Engine is running but machine is
only moving slowly or is not moving
at all
Release parking brake
Check setting of freewheel lever
Inform Kärcher Customer Service.
Machine is not sweeping properly Check roller brush and side brushes for wear, replace if necessary.
Check function of bulk waste flap
Empty waste container
Check sealing strips for wear, adjust or replace as required
Adjust roller mirror
Check drive belts of the roller brush and side-brushes
Inform Kärcher Customer Service.
Dust gathers in the machine
Switch off dust suction; set the lever to "dry" sweeping operations
Check suction fan drive belt
Check dust filter, clean or replace
Check sealing strips for wear, adjust or replace as required
High emptying does not function
Replace fuse
Switch is defective; inform Kärcher Customer Service
Hydraulic unit is defective; inform Kärcher Customer Service
Inform Kärcher Customer Service.
Roller brush does not turn.
Remove belts or cords from roller brush
Operation problems with hydraulic
movement parts
Inform Kärcher Customer Service.
Device moves forward or back-
wards when the accelerator is re-
leased
Zero position is defective; inform Kärcher Customer Service
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