Karcher KM 120/150 R LPG 2SB: Troubleshooting

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16

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.

36 EN