Troubleshooting - Kärcher HDS 7/11-4 M Manual Del Usuario

At least every 5 years, recurring
 Perform the pressure test as per manu-
facturer's instructions.
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 pump
head.
 Remove the fine filter and the filter insert.
 Clean the filter with clean water or com-
pressed air.
 Reinstall in reverse sequence.
Clean sieve in the water shortage safe
guard
 Loosen covering nut and take off hose.
 Take out sieve.
Note: If necessary turn in screw M8 appr. 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 1 Litre 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 specifica-
tions.

Troubleshooting

DANGER
Risk of injury by inadvertent start-up of ap-
pliance and electric shock. Prior to all work
on the appliance, switch off the appliance
and pull the power plug.
Indicator lamp pump
1x blinking
– Lack of oil
 Replenish oil.
2x blinking
– Leak in the high pressure system
 Check high pressure system and con-
nections for tightness.
3x blinking
– Water shortage
 Check water supply, check connec-
tions.
4x blinking
– Obstructed reed switch in the water
shortage safe guard.
 Check water shortage safe guard.
Indicator lamp of rotational
direction is blinking (not HDS 7/11,
Figure 10
 Exchange the poles at the appliance
plug.
Indicator lamp "Ready for use"
– No line voltage, see "Appliance is not
running".
Engine indicator lamp
1x blinking
– Contactor error
 Set the appliance switch to "0/OFF".
 Turn on the appliance.
– Error occurs repeatedly.
 Inform Customer Service.
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.
EN – 10
HDS 7/12)
turns off
33