Troubleshooting - Kärcher HDS 7/9-4 M/MX Mode D'emploi

Troubleshooting

DANGER
Risk of injury by inadvertent startup of ap-
pliance and electrical shock.
First pull out the plug from the mains before
carrying out any tasks on the machine.
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 7/9,
HDS 7/10, HDS 7/12)
Figure 13
 Exchange the poles at the appliance
plug.
Indicator lamp "Ready for use"
turns off
– 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
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 burner failure
1x 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
2x blinking (option)
– The flame sensor turned the burner off.
 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.
Fuel indicator lamp glows
– Fuel tank empty.
 Refill fuel.
– 11
EN 35