15
7.0 Trouble shooting guide EN
To avoid unnecessary disappointments, you should check the following before contacting the ALTO service
organisation:
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 ex ten sion 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 ALTO
or stuck distributor
Pump seals worn out Clean and replace or refer to local ALTO
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
specifi cation on the model tag.
Thermal sensor activated Leave the washer for 5 minutes to cool down.
Nozzle partially blocked Clean the nozzle (see section 4.1)
Fuse blows
Fuse too small Change to an installation higher than the
amp. consumption of the ma chine.
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 specifi cations required (see model tag)
NB!
Avoid using long, thin hoses (min 1/2")
Nozzle partially blocked Clean the nozzle (see section 4.1)
Water fi lter blocked Clean the fi lter (see section 4.2)
Hose kinked Straighten out hose.
Machine often starts
Pump/spray handle is Contact your nearest ALTO Service Centre.
and stops by itself
leaking
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 fi lter blocked Clean the fi lter (see section 4.2)
Nozzle blocked Clean the nozzle (see section 4.1)
Machine refuses to
Start/stop valve stuck Turn off the water supply.
restart
Relieve the spray handle.
In case problems other than the above occur, please contact your local ALTO distributor.
Customer services (UK only):
ALTO Cleaning Sys tems Ltd.
Phone: 01 768 868 995
Gilwilly
In
dus tri al Estate
Penrith,
Cumbria
CA11
9BN
Customer services (AUS)
ALTO Overseas Inc.
Phone: 02 9524 6122
1B/8
Resolution
Drive
P.O.
Box
797
Caringbah,
N.S.W.
2229
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