Kärcher HD 10/25-4 S User Manual page 22

Troubleshooting
Danger
Risk of injury by inadvertent startup of ap-
pliance 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 customer serv-
ice persons.
Contact an authorised customer service
person in case of problems not mentioned
in this chapter or if you are in doubt or when
you have been explicitly asked to do so.
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.
blinks green once:
–
Operational readiness has expired after 30
minutes.
The appliance has switched off after 30
minutes of continuous operation (safety if
the high pressure hose bursts).
Fault indication
blinks red once:
–
High-pressure side is leaky.
Check high pressure hose, hose connec-
tions 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.
22
Appliance is not running
 Operational readiness period has ex-
pired. Indicator lamp is blinking green.
Switch on/off the device switch again.
 Check connection cable for damages.
 Call Customer Service in case of elec-
trical defects.
Pressure does not build up in the
 Set nozzle to "High pressure".
 Clean/ replace nozzle.
 Clean the fine filter; replace it, if necessary.
 Deaerate the appliance (see "Start-up")
 Check water supply level (refer to technical
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.
Detergent is not getting sucked in
 Set nozzle to "CHEM".
 Check/ clean detergent suction hose
with filter.
 Clean/ replace backflow valve in the
connection of the detergent suction
hose.
 Open or check/clean detergent dosing
valve.
 Clean the deaerating hole of the deter-
gent tank in the casing.
 Contact Customer Service if needed.
– 8
EN
appliance
Pump leaky