Manual

– 12
– Pump leaky
Note
3 drops/minute are allowed.
 With stronger leak, have device
checked by customer service.
– Inlet pipes to the pump are leaky.
 Check all inlet pipes to the pump.
– 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.
– Detergent suction hose with filter is
leaky or blocked
 Check/ clean detergent suction hose
with filter.
– Backflow valve in the connection of the
detergent suction hose is jammed
 Clean/ replace backflow valve in the
connection of the detergent suction
hose.
– Detergent dosing valve is closed or
leaky/ blocked
 Open or check/clean detergent dosing
valve.
– Nozzle is blocked
 Clean the nozzle.
– Appliance is decalcified
 Decalcify appliance.
– Sieve in the water shortage safe guard
is dirty
 Clean sieve.
– Overflow valve is defective
 Replace overflow valve (Customer
Service).
– Fuel tank empty
 Refill.
– 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 glas,
have device checked by customer serv-
ice.
– Working pressure/flow rate to high
 Reduce working pressure/ flow quantity
on the hand spray gun.
– Sooty heating spiral
 Have device de-sooted by customer
service.
If malfunction can not be fixed, the de-
vice must be checked by customer serv-
ice.
– 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.
High pressure side is leaky
High pressure pump is vibrating
Device is not sucking in detergent
Overflow valve keeps switching on/
off when the hand-spray gun is
opened
Burner does not start
Set temperature is not achieved
while using hot water
Accessories and Spare Parts
33EN