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9TROUBLESHOOTING
Failure Reason Solution
Engine does not start or stops
abruptly.
Machine has run out of fuel Add fuel
Main or secondary fuse blown Replace the defect fuse and restart
engine. If problem repeats, contact
your dealer
Battery voltage too low. Load or replace.
Air in fuel line Drain the engine
Emergency stop activated Turn the emergency stop in order to be
able to start up again
The high-pressure pump does
not produce the required pres-
sure.
Water tank empty Fill the water tank
Supply valve to water filter closed. Open the supply valve
Water filter clogged. Stop the machine and clean the water
filter
Air in high-pressure pump Allow the machine to run a few min-
utes. The failure will normally disap-
pear. If not, contact the service
department of your dealer
Suction valves blocked Carefully loosen the valves and des-
cale them, if necessary
V-belt not sufficiently tightened Tighten the V-belt; replace if neces-
sary
Suction valves worn out. Contact the service department of
your dealer.
Pressure varies. Water level in tank too low Stop the engine, refill the tank and
restart engine
Water supply valve not sufficiently
opened
Open the supply valve completely
Water filter clogged. Stop the machine and clean the filter
Pump sucks air Stop the machine and check all hoses
and couplings for leakage
Nozzle clogged Stop the machine and clean the nozzle
(clean the nozzle holes)
Pressure valves dirty or worn Stop the machine. Check the condition
of the pressure valves. Clean or
replace them
Pump gasket worn out Stop the machine and replace gasket
V-belts for the pump slip Stop the machine and tighten the belts
Ceramic plungers in the pump damaged Contact your dealer
Pressure control clogged or internally
damaged.
Contact your dealer.
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