Troubleshooting - Kärcher HD 10/21-4 S Manual Original

Weekly
 Check oil level Please contact Custom-
er Service immediately if the oil is milky
(water in oil).
 Clean the fine filter.
Unpressurize the appliance.
Unscrew the fastening screws of the
device hood; remove the device hood.
Unscrew lid with filter.
Clean the filter with clean water or com-
pressed air.
Reinstall in reverse sequence.
 Clean filter at the detergent suck hose.
Every 500 operating hours, at least
annually
 Have the maintenance of the device
performed by the customer service.
 Oil change.
Oil change
Note:
See "Specifications" for oil volume and
type.
 Unscrew the fastening screws of the
device hood; remove the device hood.
 Turn out the oil drain screw at the front
on the motor casing.
 Drain the oil in a collection basin.
 Screw in the oil drain screw.
 Fill in new oil slowly; air bubbles should
go out.
 Attach the lid of the oil container.
 Fasten the device hood.
If required
 Empty and clean the detergent tank.
Pull out the locking cap for the deter-
gent tank along with the suction hose.
Lay the device on the reverse.
Empty and clean the detergent tank.

Troubleshooting

DANGER
Risk of injury by inadvertent startup of ap-
pliance and electrical shock.
– Prior to all work on the appliance,
switch off the appliance and pull the
power plug.
– Get the electrical components checked
and repaired only by authorised cus-
tomer service persons.
– Contact an authorised customer service
person in case of problems not men-
tioned in this chapter or if you are in
doubt or when you have been explicitly
asked to do so.
Appliance is not running
 Check connection cable for damages.
 Call Customer Service in case of elec-
trical defects.
Pressure does not build up in the
 Install the high pressure nozzle.
 Clean/ replace nozzle.
 Clean the fine filter; replace it, if neces-
sary.
 Deaerate the appliance (see "Start-up")
 Check water supply level (refer to tech-
nical data).
 Check all inlet pipes to the pump.
 Contact Customer Service if needed.
3 drops per minute are permitted and can
come out from the lower side of the appli-
ance. Call Customer Service if there is
heavy leakage.
 With stronger leak, have device
checked by customer service.
Pump is vibrating
 Check suction pipes for water and de-
tergent and ensure that they are leak-
proof.
 Deaerate the appliance (see "Start-up")
 Clean the fine filter.
 Contact Customer Service if needed.
EN – 7
appliance
Pump leaky
21