Karcher HDS 13-20-4 SX - Manual (Page 35)

– 13
 If detergent tank is empty, refill.
 Check connections and conduits.
– Pressure is set to MIN
 Set pressure to MAX.
– Sieve in the water connection is dirty
 Clean sieve.
 Clean the fine filter; replace it, if neces-
sary.
– Amount of water supply is too low.
 Check water supply level (refer to tech-
nical data).
– Pump leaky
Note: 3 drops/minute are allowed.

With stronger leak, have device
checked by customer service.
– Leak in the high pressure system
 Check high pressure system and con-
nections for tightness.
 Leave device running with open deter-
gent dosage valve and closed water
supply, until the swimmer tank is
sucked empty and the pressure falls to
"0".
 Open the water supply again.
If the pump still is not sucking in any deter-
gent, it could be because of the following
reasons:
– Filter in the detergent suck hose dirty
 Clean filter.
– Backflow valve stuck
 Remove the detergent hose and loosen
the backflow valve using a blunt object.
– System care bottle empty.
 Replace the system care bottle.
– Fuel tank empty.
 Refill fuel.
– Water shortage
 Check water supply, check connec-
tions.
 Clean sieve in the water shortage safe
guard.
– Fuel filter dirty
 Change fuel filter.
– No ignition spark
 If device is in use and no ignition spark
can be seen through the viewing glass,
have device checked by customer ser-
vice.
– Working pressure/flow rate to high
 Reduce working pressure/flow quantity
at the pressure/volume regulator in the
pump unit.
– Sooty heating spiral
 Have device de-sooted by customer
service.
If malfunction can not be fixed, the de-
vice must be checked by customer ser-
vice.
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 leaks, water drips from the
bottom of the device
Device turns on and off while hand
spray gun is closed
Device is not sucking in detergent
Burner does not start
Set temperature is not achieved
while using hot water
Warranty
Accessories and Spare Parts
35 EN