Kärcher HDS 6/14-4 C/CX Bedienungsanleitung Seite 20

Troubleshooting
DANGER
Risk of injury by inadvertent start-up of appliance and
electric shock. Prior to all work on the appliance, switch
off the appliance and pull the power plug.
Indicator lamp for rotation direction will blink
(3-phase appliances only)
Figure 14
 Exchange the poles at the appliance plug.
Indicator lamp "Ready for use" turns off
– No line voltage, see "Appliance is not running".
Indicator lamp service
1x blinking
– Water shortage
 Check water supply, check connections.
– Leak in the high pressure system
 Check high pressure system and connections for
tightness.
2x blinking
– Fault in the voltage supply or current pickup of the
motor too high.
 Check main connections and mains fuse.
 Inform Customer Service.
3x blinking
– Engine overload/overheat
 Set the appliance switch to "0/OFF".
 Allow device to cool down.
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
4x blinking
– The exhaust temperature limiter has been triggered.
 Set the appliance switch to "0/OFF".
 Allow device to cool down.
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
5 x blink
– Obstructed reed switch in the lack of water fuse or
magnetic piston stuck.
 Inform Customer Service.
6 x blink
– The flame sensor turned the burner off.
 Inform Customer Service.
Fuel indicator lamp glows
– Fuel tank empty.
 Refill fuel.
Indicator lamp system care is illuminated
– System care bottle empty.
 Replace the system care bottle.
Indicator lamp for detergent glows
– Detergent tank is empty.
 Refill detergent.
Appliance is not running
– No power
 Check power connection/conduit.
Device is not building up pressure
– Air within the system
Vent pump:
 Set dosing value for detergent to "0".
 With open hand spray gun turn device on and off
multiple times with the device switch.
 Open and close the pressure/quantity regulation at
the pump unit with the hand spray gun open.
Note: By dismantling the high pressure hose from the
high pressure connection the venting process is accel-
erated.
 If detergent tank is empty, refill.
 Check connections and conduits.
– Pressure is set to MIN
 Set pressure to MAX.
– Sieve in the water connection is dirty
 Clean sieve.
 Clean the fine filter; replace it, if necessary.
– Amount of water supply is too low.
 Check water supply level (refer to technical data).
Device leaks, water drips from the bottom of
– Pump leaky
Note: 3 drops/minute are allowed.
 With stronger leak, have device checked by cus-
tomer service.
Device turns on and off while hand spray gun
– Leak in the high pressure system
 Check high pressure system and connections for
tightness.
Device is not sucking in detergent
 Leave device running with open detergent dosage
valve and closed water supply, until the swimmer
tank is sucked empty and the pressure falls to "0".
 Open the water supply again.
If the pump still is not sucking in any detergent, it could
be because of the following reasons:
– Filter in the detergent suck hose dirty
 Clean filter.
– Backflow valve stuck
 Remove the detergent hose and loosen the back-
flow valve using a blunt object.
Burner does not start
– Fuel tank empty.
 Refill fuel.
– Water shortage
 Check water supply, check connections.
 Clean sieve in the water shortage safe guard.
– Fuel filter dirty
 Change fuel filter.
– No ignition spark
 If device is in use and no ignition spark can be seen
through the viewing glass, have device checked by
customer service.
– 7
EN
the device
is closed
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