Kärcher HDS 12/18-4 S/SXA Bedienungsanleitung Seite 25

Clean the filter on the detergent suction hose
1. Pull out the detergent suction hose port.
2. Clean the filter in water.
3. Fit the filter again.
Changing the oil
See the "Technical data" section for the oil filling quanti-
ty and type.
1. Provide a catch pan for approx. 1 litre of oil.
2. Lever out the safety clip with a flat-blade screwdriver
and pull out the oil drain plug.
3. Drain the oil into the catch pan.
Note
Dispose of the old oil in an environmentally friendly
manner or hand it over to an authorised collection point.
4. Push the oil drain plug back in and secure it with the
safety clip.
5. Slowly fill with new oil until the MAX marking on the
oil tank. The air bubbles must be able to escape.
Illustration T
Troubleshooting guide
DANGER
Inadvertently starting up device, touching live com-
ponents
Risk of injury, electric shock
Switch off the device before performing any work on the
device.
Remove the mains plug.
The rotation direction indicator light lights up
1. Swap the pins on the power plug.
Illustration U
The standby mode indicator light goes out or the
device does not run
No mains voltage
1. Check the power supply and the supply line.
Service indicator light flashes 1x
Water shortage
1. Check the water connection and the supply lines.
Leak in the high-pressure system
1. Check the high-pressure system and the connec-
tions for leaks.
Service indicator light flashes 2x
Fault in the voltage supply or current consumption of the
motor too high
1. Check the power supply and the mains power sup-
ply circuit breaker.
2. Contact Customer Service.
The service indicator light flashes 3x
Motor overloaded/overheated
1. Set the power switch to "0".
2. Allow the device to cool down.
3. Switch the device on.
Malfunction occurs repeatedly
1. Contact Customer Service.
The service indicator light flashes 4x
Exhaust gas thermostat has triggered
1. Set the power switch to "0".
2. Allow the device to cool down.
3. Switch the device on.
Malfunction occurs repeatedly
1. Contact Customer Service.
Service indicator light flashes 5x
Reed switch stuck in the water shortage safeguard or
magnetic piston stuck
1. Contact Customer Service.
The service indicator light flashes 6x
Flame sensor has switched off the burner
1. Contact Customer Service.
The fuel indicator light lights up
Fuel tank is empty
1. Refill the fuel.
System care indicator light lights up
System care container is empty
1. Fill up the system care.
Device not building up pressure
Air in the system
1. Venting the pump:
a Set the detergent dosing valve to "0".
b With the high-pressure gun open, switch the de-
vice on and off several times via the power
switch.
c Open and close the pressure/quantity regulator
of the pump unit with the high-pressure gun open.
Note
The venting process is accelerated by removing the
high-pressure hose from the high-pressure connection.
2. Top up the detergent if necessary.
3. Check connections and lines.
Pressure is set to MIN
1. Set the pressure to "MAX".
Sieve in the water connection/fine filter is dirty
1. Clean the sieve.
2. Clean the fine filter, replace if necessary.
Water supply volume too low
1. Check the water supply volume (see "Technical da-
ta").
Device is leaking, water is dripping from the bottom
of the device
Pump leaking
1. If there is a significant leak, have the device
checked by Customer Service.
Note
3 drops/minute are permitted.
The device switches on and off continuously when
the high-pressure gun is locked
Leak in the high-pressure system
1. Check the high-pressure system and the connec-
tions for leaks.
The device does not suck in any detergent
1. Let the device run with the detergent dosing valve
open and the water inlet closed until the float tank
has been sucked empty and the pressure drops to
"0".
2. Open the water inlet again.
If the pump still does not suck in detergent, this can be
due to the following reasons:
The filter in the detergent suction hose is dirty
1. Clean the filter.
Check valve is stuck
1. Pull off the detergent hose and free up the check
valve with a blunt object.
Burner not igniting
Fuel tank is empty
1. Refill the fuel.
Water shortage
1. Check the water connection and the supply lines.
Fuel filter dirty
1. Change the fuel filter.
No ignition spark
1. If no ignition spark is visible through the sight glass
during operation, have the device checked by Cus-
tomer Service.
English 25