Kärcher HDS 7/12 M Service Manual page 11

LED no. Symbol
0
1
2
3
4
5
Activity Meaning / measure
1 x blinking Lack of oil. Check/fill oil level of the high pressure pump; repair
leaks.
2 x blinking Leakage. 10 short startups. Check the high-pressure system for
leaks.
3 x blinking Dry running (2 minutes). Check / ensure the water supply.
4 x blinking Reed switch or solenoid is sticky. Check safety block/ repair reed
switch.
1 x blinking Motor turns in the wrong direction. Switch off the device and turn
the phase inverter in the unit plug by 180°.
glow The appliance is now ready for operation.
1 x blinking Either the device was in continuous operation for 30 minutes or in
standby mode for 30 minutes.
glow Fuel tank empty; fill fuel.
glow Detergent tank 1 is empty. Refill detergent (only HDS 12/18)
1 x blinking Fault in the motor contactor (motor current below 1.5 A for 3 sec-
onds although the contactor has switched). Check / replace the
contactor.
2 x blinking Coiling protection contact open/defective. Determine/eliminate
cause. Replace the engine.
3 x blinking Current asymmetry or low voltage or overvoltage. Check the
mains connection.
4 x blinking Excessive power consumption. Check mechanics for resistance.
Check the mains connection.
English 5.906-432.0 Rev. 00 (06/15)
11