Kärcher HDS-E 3.3/25-4M Ec Manual page 12

Maintenance Works
Clean the sieve in the water connection
 Take out sieve.
 Clean sieve in water and reinstall.
Cleaning the fine filter
 Unpressurize the appliance.
 Unscrew the fine filter from the boiler.
 Remove the fine filter and the filter insert.
 Clean the filter with clean water or compressed air.
 Reinstall in reverse sequence.
Clean the sieve in the safety block
 Unpressurize the appliance.
 Loosen covering nut and take off hose.
 Take out sieve.
Note: If necessary turn in screw M8 appr. 0.2 in/5 mm
inwards and therewith pull out sieve.
 Clean sieve in water.
 Push sieve inwards.
 Put on hose.
 Tighten covering nut firmly.
Clean filter at the detergent suck hose
 Take out detergent suck supports.
 Clean filter in water and reinstall.
Oil change
 Ready a catch bin for appr. 0.26 gal/1 Liter oil.
 Loosen release screw.
Dispose of old oil ecologically or turn in at a gathering
point.
 Tighten release screw.
 Fill oil slowly up to the MAX marking.
Note: Air pockets must be able to leak out.
For oil type refer to technical specifications.
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 pump
2x blinking
– Leak in the high pressure system
 Check high pressure system and connections for
tightness.
3x blinking
– Lack of water after 2 minutes - the pump is
switched off to prevent dry runs.
 Check water supply, check connections.
4x blinking
– Heater contactor fault
 Set the appliance switch to "0/OFF".
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
"Low water" indicator lamp
– Lack of water - heater is switched off
 Check water supply, check connections.
Indicator lamp "Ready for use" turns off
– No line voltage, see "Appliance is not running".
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Indicator lamp for heater lights up
– Heater operation
Engine indicator lamp
2x 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.
3x blinking
– Fault in the voltage supply.
 Check main connections and mains fuse.
4x blinking
– Excessive power consumption.
 Check main connections and mains fuse.
 Inform Customer Service.
Indicator lamp boiler fault
1x blinking
– Temperature limiter has got triggered.
 Set the appliance switch to "0/OFF".
 Allow device to cool down.
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
3x blinking
– System care detection defective
 Inform Customer Service.
4x blinking
– Temperature sensor defective
 Inform Customer Service.
Indicator lamp service
– Service interval
 Perform service work.
Indicator lamp system care is illuminated
Note: Heater can only operate 5 more hours.
– System care bottle empty.
 Replace the system care bottle.
Indicator lamp system care is blinking
Note: Heater operation no longer possible.
– System care bottle empty.
 Replace the system care bottle.
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.
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EN