Karcher HDS 801 B - Manual (Page 24)

– 10
– Nozzle is set to "CHEM"
 Set nozzle to "High pressure".
– Nozzle is blocked/ washed out
 Clean/ replace nozzle.
– Sieve in the water connection is dirty
 Clean sieve.
– Sieb in front of the water scarcity safe-
guard is dirty.
 Clean sieve.
– Amount of water supply is too low.
 Check water supply level (refer to tech-
nical data).
– Detergent tank is empty.
 Top up detergent orset dosing value for
detergent to "0".
– Detergent dosing valve is leaky.
 Check dosing valve.
– Safety valve is displaced.
 Adjust safety valve (Customer Service).
– Safety valve is leaky.
 Replace the safety valve and/or the
washer (Customer Service).
– Overflow valve is defective
 Replace overflow valve (Customer
Service).
– Air within the system
Vent pump:

Set dosing value for detergent to "0".
 Open the water supply.
 Start the engine according to the oper-
ating instructions of the engine manu-
facturer.
 To dearate the appliance, unscrew the
nozzle and allow the appliance to run
until the water exits in a bubble-free
state.
 Switch off the appliance and fit the noz-
zle again.
– Nozzle is blocked.
 Clean the nozzle.
– Safety valve is displaced.
 Adjust safety valve (Customer Service).
– Nozzle is set to "High pressure"
 Set nozzle to "CHEM".
– Detergent suction hose with filter is
leaky or blocked
 Check/ clean detergent suction hose
with filter.
– Washer is defective.
 Inform Customer Service.
– Temperature limiter has got triggered
again.
 Get the device checked by Customer
Service.
– Fuel tank empty
 Refill.
– Water shortage
 Check water supply, check connec-
tions, clean water shortage safeguard.
– Fuel pump is defective
 Replace fuel pump (Customer Service).
– Fuel filter dirty
 Change fuel filter.
– No ignition spark
 If device is in use and no ignition spark can
be seen through the viewing glas, have de-
vice checked by customer service.
– Uneven spraying of fuel at the burner
nozzle
 Clean fuel filter.
– Water inlet is closed.
 Open the water supply.
– Amount of water supply is too low.
 Increase water flow quantity.
– Sieve blocked in the water shortage
safe guard.
 Clean sieve in the water shortage safe
guard.
– Valves in the high pressure pump are
leaky or dirty.
 Inform Customer Service.
If malfunction can not be fixed, the device
must be checked by customer service.
Device is not building up pressure
Water jet is not uniform
Device is not sucking in detergent
Oil in the high pressure pump is
milky
Burner does not start
Water scarcity safeguard does not
switch on - no flame
24 EN