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Available languages
Available languages
DANGER
To avoid risks, all repairs and replacement of spare parts may only be carried out by authorized customer service
personnel.
First pull out the plug from the mains before carrying out any tasks on the machine.
Fault
Cause
Pump runs but does
Air in the pump
not transport
Air does not come out on the pressure
side
No water available.
Pump does not run or
Power supply interrupted
suddenly comes to a
Thermal protection switch in the motor
standstill during oper-
has switched off the pump as it was over-
ations
heated.
Pump switches itself
Thermal protection fuse has switched the
off and back on
pump off to protect from overheating or
turned it back on after it has cooled off.
Motor starts up imme-
Pressure is not retained in the system
diately after switch off
Air pressure in the storage boiler is too
low.
Backflow valve does not close properly
Membrane in pressure tank is defective Replace membrane
Pump transports is re-
Suction filter or check valve (special ac-
ducing or transported
cessories) contaminated
quantity is too low
The quantity transported by the pump de-
pends on the transport height and the
connected periphery
Vibrating sound while
Membrane in pressure tank vibrates
taking out water
Our Kärcher branch will be pleased to help you further in the case of questions or faults. See address on the reverse.
Troubleshooting
Remedy
see chapter "Preparing the Appliance"
Open tap on pressure side
Check the water reservoir.
Check fuses and electrical connections
Pull out the mains plug, let the pump cool down,
clean the suction area, prevent dry running
In order to prevent a repetition, the system should
be checked for leaks and sealed.
Check connections including sealings and control
the water outlet.
The smallest of leakages can affect the operation
adversely.
Fill storage boiler with 2.0 bar. See chapter "Main-
tenance"
Check backflow valve on suction side.
Clean suction filter or check valve (special acces-
sories)
Keep max. flow height, see technical data. If nec-
essary, select a different hose diameter or hose
length.
Noise caused by operations and the noise can be
reduced by reducing the pressure in the air filling of
the storage tank.
– 4
EN
13
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