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Before troubleshooting, switch off the pressure washer and disconnect the unit from the power supply. Relieve all system
Condition
The water pressure
fluctuates or drops.
The shape of the water jet
has changed.
Detergent is not being drawn
in.
The connections of the
pressure washer, high-
pressure hose, spray gun or
spray lance are stiff.
The Battery Indicator LED
flashes red.
The activation key flashes
green.
34
pressure by pulling the trigger switch. Lock the spray gun trigger.
Possible Cause
There is not enough water.
The nozzle is blocked.
The water intake screen is blocked.
The high-pressure pump, high-pressure
hose or spray attachment is leaking.
The nozzle is blocked.
The nozzle is worn.
The detergent container is empty.
The nozzle of the detergent spray set is
blocked.
The gaskets of the connections have not
been greased.
The batteries in the control panel are
empty.
The connection between the pressure
washer and the control panel no longer
exists.
Remedy
► Open the water tap fully.
► Make sure that a sufficient quantity of water is
available.
► Clean the nozzle, @ 16.3.
► Clean water intake screen, @ 16.4.
► Ask a STIHL servicing dealer to inspect the
pressure washer.
► Clean the nozzle, @ 16.3.
► Insert a new nozzle.
► Fill the container with detergent.
► Clean nozzle of the detergent spray set.
► Grease the gaskets. @ 17.3
► Install new batteries in the control panel.
► Switch off the pressure washer.
► Reduce the distance between the spray gun and
the pressure washer.
► Switch on the pressure washer and the control
panel.
18 Troubleshooting Guide
0458-004-8621-A
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