Troubleshooting - Kärcher HD 18/50-4 Cage Classic EU Manual

Maintenance
Safety inspection/ maintenance contract
You can sign with your dealer a contract for
regular safety inspection or even sign a
maintenance contract.
Please take advice on this matter.
Before each use
 Check mains cable.
The mains cable should not have been
damaged (risk of electrical shock). A
damaged mains cable must be re-
placed immediately by an authorised
Customer Service Engineer or an elec-
trician.
 Check the high pressure hose for dam-
ages (risk of bursting).
Please arrange for the immediate ex-
change of a damaged high-pressure
hose.
 Check oil level from the oil level display
of the high pressure pump.
Please contact Customer Service im-
mediately if the oil is milky (water in oil).
 Check appliance (pump) for leaks.
3 drops per minute are permitted and
can come out from the lower side of the
appliance. Call Customer Service if
there is heavy leakage.
Weekly
 Clean the filter inlay.
After the first 50 operating hours
 Change the oil in the high pressure
pump.
Yearly or after 500 operating hours
Change the oil in the high pressure pump.
 For oil type refer to technical specifica-
tions.
 Turn out the oil drain screw.
 Drain the oil in a collection basin.
 Screw in oil drain plug.
 Fill in new oil slowly until the centre of
the oil level display.
Note:
Air pockets must be able to leak out.

Troubleshooting

You can rectify minor faults yourself with
the help of the following overview.
If in doubt, please consult the authorized
customer service.
DANGER
Risk of injury! Always switch off the appli-
ance and pull out the mains plug before
care and maintenance work.
WARNING
Repair work and work on the electrical
components may only be performed by an
authorised customer service.
Indicator lamp
The indicator lamps display the operating
states (green) and interruptions (red).
Reset:
 Set the appliance switch to "0".
 Wait for a while.
 Set the appliance switch to "I".
Operating status display
 Continuous green:
– The appliance is now ready for operation.
Fault indication
 Continuous red light:
– Water shortage
Appliance is not running
– No power
 Check whether the voltage indicated on
the type plate corresponds to the volt-
age of the socket.
 Check the mains connection cable for
damages.
– The water shortage safeguard was trig-
gered due to low water inlet pressure.
The indicator lamp "lack of water" will il-
luminate.
 Check water inlet pressure, minimum
value see "Specifications".
Turn the device switch to "0" and turn
on again to restart the system.
– Motor overloaded/overheated or the
motor circuit breaker has tripped.
 Switch off appliance and let it cool
down. Remove the cause of the prob-
lem. Turn on the appliance again.
– 8
EN 21