Kärcher HDS 4.0/20-4 Ea Mode D'emploi page 15

PREVENTIVE MAINTENANCE AND SERVICE
Indicator Lamp "Ready For Use" Turns OFF
No line voltage, see "Appliance is not running".
Indicator Lamp Service
Indicator lamp service will be illuminated
Lack of oil
• Replenish oil.
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
Motor 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
Fuel Indicator Lamp Glows
Fuel tank empty.
• Refill fuel.
Indicator Lamp System Care is Illuminated
System care container is empty.
• Refill system care.
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 accelerated.
• 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 the Device
• Pump leaky
Note: 3 drops/minute are allowed.
• With stronger leak, have device checked by customer
service.
Device Turns on and off While Hand Spray
Gun is Closed
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 backflow
valve using a blunt object.
Operating Manual HDS Premium 9.808-215.0
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