18
Original Instructions
9 Trouble-shooting
Please ensure that you check the following before contacting the Nilfisk service organization:
Symptom
Cause
Recommended action
Machine refuses to start
Machine not plugged in
Plug in machine.
Defective socket
Try another socket.
Fuse has blown
Replace fuse. Switch off other machines.
Defective extension cable Try without the extension cable.
Fluctuating pressure
Pump sucking air
Check that hoses and connections are air-
tight.
Valves dirty, worn out
Clean and replace or refer to local Nilfisk-
or stuck
distributor.
Pump seals worn out
Clean and replace or refer to local Nilfisk-
distributor.
Motor busses
Low voltage or
Activate the trigger of the spray handle.
low temperature
Machine stops
Fuse has blown
Replace fuse. Switch off other machines.
Incorrect mains voltage
Check that the mains voltage corresponds
to specification on the model tag.
Thermal sensor activated
Leave the washer for 5 minutes to cool
down.
Nozzle partially blocked
Clean the nozzle (see section 7.2).
Fuse blows
Fuse too small
Change to an installation higher than the
amp. consumption of the machine.
You may try without the extension cable.
Machine pulsating
Air in inlet hose/pump
Allow machine to run with open trigger until
regular working pressure resumes.
Inadequate supply of
Check that the water supply corresponds to
mains water
specifications required (see model tag).
NB!
Avoid using long, thin hoses (min. 1/2").
Nozzle partially blocked
Clean the nozzle (see section 7.2).
Water filter blocked
Clean the filter (see section 7.1).
Hose kinked
Straighten out hose.
Machine often starts
Contact your nearest Nilfisk Service
and stops by itself
Centre.
Spray handle is leaking
Replace seat/ball/O-ring in the valve of the
spray handle.
Machine starts, but
Pump/hoses or accessory Wait for pump/hoses or accessory to thaw.
no water comes out
frozen
No water supply
Connect inlet water.
Water filter blocked
Clean the filter (see section 7.1).
Nozzle blocked
Clean the nozzle (see section 7.2).
Pump pressure drops
Button for regulation of
Adjust the button to correct working pres-
pressure / water volume not sure.
correctly adjusted
In case problems other than the above occur, please contact your local Nilfisk distributor.
