benza BZ 170, Use And Maintenance Manual

Page: 26 / 40

ENGLISH
26
SYMPTOM CAUSE RECOMMENDED ACTION
Machine refuses
to start
Machine not plugged in
Defective socket
Fuse has blown
Defective extension cord
Plug in machine
Try another socket.
Replace fuse. Switch off other machines.
Try without the extension cord.
Fluctuating pressure
Pump sucking air
Valves dirty, worn out or stuck
Pump seals worn out
Check that hoses and connections are
airtight.
Clean and replace or refer to local dis-
tributor
Clean and replace or refer to local dis-
tributor
Machine stops
Fuse has blown
Incorrect mains voltage
Thermal sensor activated
Nozzle partially blocked
Replace fuse. Switch off other machines.
Check that the mains voltage corre-
sponds to specification on the model tag.
Leave the washer for 5 minutes to cool
down.
Clean the nozzle
Fuse blows
Fuse too small Change to an installation higher than the
amp. consumption of the machine. You
may try without the extension cord.
Machine pulsating
Air in inlet hose
Inadequate supply of mains water
Nozzle partially blocked
Water filter blocked
Hose kinked
Allow machine to run with open trigger
until regular working pressure resumes.
Check that the water supply corresponds
to specifications required
NB! Avoid using long, thin hoses (min.
1/2”)
Clean the nozzle
Clean the filter
Straighten out hose.
Machine often starts
and stops by itself
Pump/spray gun is leaking Centre. Contact your nearest Service
Machine starts,
but no water comes out
Pump/hoses or accessory frozen
No water supply
Water filter blocked
Nozzle blocked
Wait for pump/hoses or accessory to
thaw.
Connect inlet water.
Clean the filter
Clean the nozzle
In case problems other than the above occur, please contact your local distributor.
Manual BZ170_Manual BZ170 20/12/12 20:34 Página 26