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7.0 Troubleshooting and correction US
You have chosen the best quality and therefore deserve the best service. To avoid unnecessary disap-
pointments, you should check the following before contacting the nearest ALTO service organisation:
Fault Cause Correction
Machine will not start A fuse has blown Change the fuse
Power/plug not connected Connect power/plug
Thermal switch in motor Let the motor cool. Start the machine and
activated check that the working pressure is
not too high and that the mains voltage
corresponds to the specifications.
KSA-2 Thermal switch in water tank Let the water cool and check that the inlet
water temp does not exceed 160°F.
Machine stops shortly Wrong supply voltage Check that the supply voltage corresponds
after the start to the specifications on the model tag
(see section 1.1).
Air in the system Vent the system (see section 3.4).
Fuses blow Supply is inadequate Correct the installation so it corresponds to
for the ampere the ampere consumption of the machine
consumption of the machine at a minimum. Change fuse.
Working pressure KSA-1 Nozzle partly clogged Clear nozzle (see section 6.4)
too high
Working pressure too low High pressure cock by outlet Close all high pressure cocks not in use.
point not completely closed
KSA-1 Water regulation valve not Completely open the water regulation valve.
set at max pressure Turn in the direction of the indicator.
KSA-2 Wrong MULTIPRESSURE Check whether the total water volume of the
spray lance spray lances in use exceeds the capacity of
the system. If necessary, change to other
spray lances.
Pressure fluctuating High pressure hoses too Detach high pressure extension hoses and
long (machine vibrates) retry. Extension hose
max. 160 ft. Avoid long extension hoses
with many couplings.
Air in the system Vent the system (see section 3.4)
Water inlet screen clogged Clean the screen (see section 6.3)
No working pressure Nozzle clogged Clear the nozzle (see sec. 6.4)
No inlet water Check that the shut-off cock of the water
supply is open. Check that the water supply
is adequate (see section 1.2).
High pressure cock of Close all high pressure cocks not in use.
outlet point is open
Water volume too KSA-1 Water regulation valve not Open water regulation valve completely.
low set properly Turn completely open in the direction of the
indicator.
KSA-2 Nozzle partly blocked Clear the nozzle (see section 6.4).
Should other malfunctions occur than those mentioned above, please contact your authorized ALTO
servicing distributor.
Customer services (US only): ALTO U.S. Inc. Phone: 877-322-2586 (Tech Support)
1500 N. Belcher Rd
Clearwater, FL 33765