High pressure side is leaky
Pump leaky
–
Note
3 drops/minute are allowed.
With stronger leak, have device
checked by customer service.
High pressure pump is vibrating
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.
Device is not sucking in detergent
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.
Overflow valve keeps switching on/
off when the hand-spray gun is
opened
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).
Burner does not start
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.
Set temperature is not achieved
while using hot water
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.
Accessories and Spare Parts
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.
– 12
EN
33