Troubleshooting; Indicator Lamp - Kärcher HD 3.5/30-4S Ea Manual Del Usuario

monthly or after 500 operating
hours
Oil change.

Oil change
Note
See "Technical Details" for details of oil
quantity and type.
Unscrew the fastening screws of

the device hood; remove the device
hood.
Loosen the oil drain screw at the

rear 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 de-
tergent 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
appliance and electrical shock.
First pull out the plug from the mains
before carrying out any tasks on the
machine.
Get the electrical components checked
and repaired only by authorised cus-
tomer service persons.
Contact an authorised customer ser-
vice person in case of problems not
mentioned in this chapter or if you are
in doubt or when you have been explic-
itly asked to do so.

Indicator lamp

The indicator lamps display the operat-
ing 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 op-
eration.
blinks green once:
–
Operational readiness has expired
after 30 minutes.
The appliance has switched off af-
ter 30 minutes of continuous opera-
tion (safety if the high pressure
hose bursts).
Fault indication
blinks red once:
–
High-pressure side is leaky.
Check high pressure hose, hose
connections and hand spray gun for
leaks.
blinks red twice:
–
Engine is too hot.
Set the appliance switch to "0".
Allow device to cool down.
Set the appliance switch to "I".
blinks red thrice:
–
Fault in the voltage supply.
Check main connections and mains
fuse.
blinks red four times:
–
Excessive power consumption.
Call Customer Service.
– 9
EN 11