Karcher KM 120-150 R D - Manual (Page 18)

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Troubleshooting
Fault Remedy
Appliance cannot be started Sit on the driver seat, activate seat contact mat
Refuel/ replace gas cylinder
Open fuel tap/ gas supply
Check connections and links in petrol or gas lines.
Check fuse of the electrical starter, replace if required (only KM 120/150 R D)
Charging battery
Clean and change spark plug, replace if required (only KM 120/150 R G and R LPG)
Inform Kärcher Customer Service.
For temperatures below +10 °C: Lock parking brake
Engine is running erratically Clean or replace air filter
Check connections and links in petrol or gas lines.
Inform Kärcher Customer Service.
Engine is running but machine is
not moving Release parking brake
Check setting of freewheel lever
Inform Kärcher Customer Service.
Engine is running but machine is
only moving slowly Release parking brake
Allow machine to warm up for approx. 3 minutes in sub-zero temperatures
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
Check sealing strips for wear, adjust or replace as required
Adjust roller mirror
Check hydraulic system (sweeping) for leaks.
Inform Kärcher Customer Service.
Dust gathers in the machine Empty waste container
Check suction fan drive belt
Check sealing cover on suction fan
Check dust filter, clean or replace
Check filter case seal
Check sealing strips for wear, adjust or replace as required
Poor cleaning performance at
edges Replace side brush
Check sealing strips for wear, adjust or replace as required
Inform Kärcher Customer Service.
Side brush or roller brush switch-
on operation is not working Check hydraulic system (sweeping) for leaks.
Inform Kärcher Customer Service.
Side brush or roller brush is not
being lowered Inform Kärcher Customer Service.
Insufficient vacuum performance Check filter case seal
Check sealing cover on suction fan
Insert lamella filter correct; see Changing dust filter
Roller brush does not turn. Remove belts or cords from roller brush
Charge indicator lamp glows only
during operations (only KM 120/
150 R D and R LPG) Inform Kärcher Customer Service.
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