Kärcher HDS 9/18-4 M Manual page 22

Oil change
 Ready a catch bin for appr 1 Litre oil.
 Loosen release screw.
Dispose of old oil ecologically or turn in at a gathering
point.
 Tighten release screw.
 Fill oil slowly up to the MAX marking.
Note: Air pockets must be able to leak out.
For oil type refer to technical specifications.
Troubleshooting
DANGER
Risk of injury by inadvertent start-up of appliance and
electric shock. Prior to all work on the appliance, switch
off the appliance and pull the power plug.
Indicator lamp pump
2x blinking
– Leak in the high pressure system
 Check high pressure system and connections for
tightness.
3x blinking
– Water shortage
 Check water supply, check connections.
4x blinking
– Obstructed reed switch in the water shortage safe
guard.
 Check water shortage safe guard.
Indicator lamp rotation direction is blinking
Figure 10
 Exchange the poles at the appliance plug.
Indicator lamp "Ready for use" turns off
– No line voltage, see "Appliance is not running".
Engine indicator lamp
1x blinking
– Contactor error
 Set the appliance switch to "0/OFF".
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
2x blinking
– Engine overload/overheat
 Set the appliance switch to "0/OFF".
 Allow device to cool down.
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
3x blinking
– Fault in the voltage supply.
 Check main connections and mains fuse.
4x blinking
– Excessive power consumption.
 Check main connections and mains fuse.
 Inform Customer Service.
22
Indicator lamp burner failure
1x blinking
– The exhaust temperature limiter has been trig-
gered.
 Set the appliance switch to "0/OFF".
 Allow device to cool down.
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
2x blinking (option)
– The flame sensor turned the burner off.
 Inform Customer Service.
3x blinking
– System care detection defective
 Inform Customer Service.
4x blinking
– Temperature sensor defective
 Inform Customer Service.
Indicator lamp service
– Service interval
 Perform service work.
Fuel indicator lamp glows
– Fuel tank empty.
 Refill fuel.
Indicator lamp system care is illuminated
Note: Burner can operate 5 more hours.
– System care tank is empty, due to technical rea-
sons a remainder stays in the tank.
 Refill system care.
Indicator lamp system care is blinking
Note: Burner operation no longer possible.
– System care container is empty.
 Refill system care.
Indicator lamp detergent 1 is illuminated
– Detergent tank 1 is empty.
 Refill detergent.
Indicator lamp detergent 2 is illuminated
– Detergent tank 2 is empty.
 Refill detergent.
Appliance is not running
– No power
 Check power connection/conduit.
Device is not building up pressure
– Air within the system
Vent pump:
 Set dosing value for detergent to "0".
 With open hand spray gun turn device on and off
multiple times with the device switch.
 Open and close the pressure/quantity regulation at
the pump unit with the hand spray gun open.
Note: By dismantling the high pressure hose from the
high pressure connection the venting process is accel-
erated.
 If detergent tank is empty, refill.
– 7
EN
(HDS 12/18 only)
(HDS 12/18 only)