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Symptom
No detergent suction -
units with tanks.
No detergent
suction -units with at-
tachable
applicators.
Unit begins to smoke.
Pressure washer does
not start up.
Pump does not reach
necessary pressure.
Fluctuating pressure.
Motor stops suddenly.
Possible cause
Lance nozzle is not in low pressure.
High pressure extension hose or high
pressure hose is too long
Injector clogged on pump.
Detergent applicator is clogged.
Overheated, overloaded or damaged
motor.
Unit is pressurized.
Plug is not well connected or electric
socket is faulty.
Extension cord is too long or wire size
too small.
Main voltage supply is too low.
Thermal safety switch has tripped.
Water inlet filter is clogged.
Pump is sucking air from hose
connections.
Nozzle is worn or not correct size.
Nozzle in shampo position.
Unloader is clogged or worn.
Valve is clogged or worn.
Pump is sucking in air.
Clogged nozzle.
Valves dirty, worn or stuck.
Water seals worn.
Extension cord is too long or wire size
too small.
Thermal safety switch has tripped due
to overheating.
Corrective Action
Slide lance nozzle into low
pressure position.
Turn the ring cunterclockwise.
Remove high pressure extension hose
or use high pressure hose
shorter than 750 cm.
Call the delaer.
Clean applicator with warm water.
Replace aplicator.
Turn off and call the dealer.
Squeeze trigger on gun.
Check plug, socket and fuse.
Remove extension cord.
Check that main supply voltage is
adequate.
Swicth off unit and allow motor to cool
down.
Clean water inlet filter.
Check that connections and
locking ring are properly
tightened.
Call the delaer.
Turn the ring clockwise.
Call the delaer.
Call the delaer.
Check that hones and connections are
tight.
Clean with tip cleaner.
Call the delaer.
Call the delaer.
Remove extension cord.
Check that main supply voltage cor-
responds to specifications.
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