Troubleshooting
DANGER! RISK OF INJURY DUE TO ACCIDENTAL STARTING OF THE APPLIANCE.
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Before working on the appliance, turn the On/Off switch
RISK OF BURNS! Do not touch the hot exhaust silencer, cylinder or cooling fins.
Engine will not start
Fault
Engine cannot be started
Appliance does not generate sufficient pressure
Fault
Running speed of the engine too low.
Low-pressure nozzle ( ) is fitted.
Nozzle
blocked/eroded.
Intake filter
contaminated.
Air in the system.
Water supply quantity too low.
Supply lines to high-pressure pump
Appliance is leaking, water dripping from under appliance
The high-pressure pump
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NOTE
Max. permissible is 3 drops per minute. For more serious leaks, have the appliance checked by customer
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service.
Cleaning agent is not drawn in
Fault
High-pressure nozzle ( ) is fitted.
Cleaning agent hose
leaking or blocked.
NOTE
If the fault cannot be remedied, the appliance must be checked by customer service.
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GB │ IE
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34
to "OFF" and pull off the spark plug connector
Cause
Automatic oil switch-off
Soot deposit on spark plug .
No fuel.
leaking or blocked.
is leaking.
.
Remedy
Check oil level, add engine oil.
activated.
Clean or replace spark plug .
Spark plug gap 0.7–0.9 mm
Add fuel.
Remedy
Check running speed of the engine
(see technical specifications).
Fit high-pressure nozzle ( ).
Clean/replace nozzle .
Clean intake filter .
Bleed the appliance (see "Use").
Check water supply (see technical
specifications).
Check all supply lines to high-pressure
pump .
Remedy
Fit low-pressure nozzle ( ).
Inspect/clean cleaning agent hose .
PHDB 4 B2