User Manual

English | 9
Bosch Power Tools 1 609 92A 3EM | (12.7.17)
Troubleshooting
Problem Possible Cause Corrective Action
Motor refuses to start Plug not connected Connect plug
Mains socket faulty Use another socket
Fuse faulty/blown Replace fuse
Extension cable damaged Try without extension cable
Motor protector has activated Allow to cool for 15 minutes
Frozen Wait for pump/water supply hose/acces-
sory to thaw
Motor stops Fuse faulty/blown Replace fuse
Wrong mains voltage Check that mains voltage corresponds to
specifications on the model tag
Motor protector has activated Allow to cool for 15 minutes
Fuses blow Fuses incorrectly rated Change to a mains supply higher than the
pressure washer amp consumption
Motor starts but no pressure Nozzle partly blocked Clean nozzle
Motor “sounds” but fails to start Insufficient power supply Check that the voltage of the mains pow-
er supply line is the same as that on the
plate
Voltage loss due to use of extension cable Check characteristics of extension cable
Appliance not used for a long period of
time
Contact your Bosch Service Centre
Problems with TSS (Total Stop System)
device
Contact your Bosch Service Centre
Pressure pulsating Air in the inlet water supply hose/pump Allow pressure washer to run with open
spray handle and nozzle at low pressure
until regular working pressure is obtained
Inadequate water supply Check that the water supply corresponds
to specifications. The minimum specifica-
tion for the water supply hose is 1/2" or
13 mm diameter
Water filter blocked Clean water filter
Water supply hoses squeezed Straighten out kinked water supply hoses
High pressure hose too long Remove high pressure extension hose.
Retry (extension hose max. 7 m)
Pressure too low, but steady
Note: Several types of accessory will nor-
mally deliver a lower pressure
Nozzle worn Change the nozzle
Start/stop valve worn Activate trigger five times in quick suc-
cession
Motor starts up but with restricted or no
working pressure
No water supply Connect water supply
Water filter clogged up Clean the water filter
Nozzle clogged up Clean nozzle
The pressure washer starts irregularly by
itself
Pump/spray gun leaky Contact your Bosch Service Centre
Water leaks from machine Leaking pump A slight water leak is permissible; in case
of excessive leak, contact Bosch Service
Centre
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