Karcher HDS 5/11 U/UX - Manual (Page 24)

– 8
 Check connections and conduits.
– Filter in the water connection is dirty
 Clean filter.
– Amount of water supply is too low.
 Check water supply level (refer to tech-
nical data).
– Water tap is closed.
 Open tap.
– Air within the system
Vent pump:

With open hand spray gun turn device
on and off multiple times with the device
switch.
Note: By dismantling the spray lance from
the hand spray gun, the venting process is
accelerated.
– High-pressure nozzle clogged
 Clean the nozzle.
– Heating coil has heavy calcium deposits
 Have the device decalcified by custom-
er service.
– Leak in the high pressure system
 Check high pressure system and con-
nections for tightness.
– Pump leaks, safety valve not tight.
Note: 3 drops/minute are allowed.

With stronger leak, have device
checked by customer service.
– Nozzle is set to "High pressure"
 Set nozzle to "CHEM".
– External detergent container is empty.
 Fill/replace external detergent container.
– Filter at the detergent suction hose dirty
 Clean filter.
Illustration
– Backflow valve stuck
 Remove the detergent hose and loosen
the backflow valve using a blunt object.
– Fuel tank empty.
 Refill fuel.
– Water shortage
 Check water supply, check connec-
tions.
– Water flow temperature too hot.
 Fill in water with a max. temperature of
30°C.
Illustration
– Fuel filter dirty
 Change fuel filter.
The warranty terms published by our com-
petent sales company are applicable in
each country. We will repair potential fail-
ures of the appliance within the warranty
period free of charge, provided that such
failure is caused by faulty material or de-
fects in fabrication.
– Only use accessories and spare parts
which have been approved by the man-
ufacturer. The exclusive use of original
accessories and original spare parts
ensures that the appliance can be oper-
ated safely and trouble free.
– At the end of the operating instructions
you will find a selected list of spare parts
that are often required.
– For additional information about spare
parts, please go to the Service section
at www.kaercher.com.
Device continuously turns on and
off while hand spray gun is open
Device turns on and off while hand
spray gun is closed
Device leaks, water drips from the
bottom of the device.
Device is not sucking in detergent
Burner does not start
Warranty
Accessories and Spare Parts
24 EN