Troubleshooting; Customer Service - Kärcher HDS 5/12 C Original Instructions Manual

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 "Ready for use"
turns off
– No line voltage, see "Appliance is not
running".
Fuel indicator lamp glows
– Fuel tank empty.
 Refill fuel.
Indicator lamp for detergent glows
– Detergent tank is empty.
 Refill detergent.
Appliance is not running
– No power
 Check power connection/conduit.
Device is not building up pressure
– Nozzle is set to "CHEM"
 Set nozzle to "High pressure".
– Air within the system
Vent pump:
 Set dosing value for detergent to "0".
 With open hand spray gun turn device
on and off multiple times with the device
switch.
Note: By dismantling the high pressure
hose from the high pressure connection the
venting process is accelerated.
 If detergent tank is empty, refill.
 Check connections and conduits.
– 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).
Device leaks, water drips from the
bottom of the device
– Pump leaky
Note: 3 drops/minute are allowed.
 With stronger leak, have device
checked by customer service.
Device turns on and off while hand
spray gun is closed
– Leak in the high pressure system
 Check high pressure system and con-
nections for tightness.
Device is not sucking in detergent
– Nozzle is set to "High pressure"
 Set nozzle to "CHEM".
– 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.
Burner does not start
– 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.
Set temperature is not achieved
while using hot water
– Sooty heating spiral
 Have device de-sooted by customer
service.

Customer Service

If malfunction can not be fixed, the de-
vice must be checked by customer ser-
vice.
– 9
EN 25