Bosch AQT 35-12 - Manual (Page 13)

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Bosch Power Tools F 016 L70 995 | (10.6.13)
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/accessory to thaw
Motor stops Fuse faulty/blown Replace fuse
Wrong mains voltage Check that mains voltage corresponds to specifica-
tions 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 power 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 han-
dle and nozzle at low pressure until regular working
pressure is obtained
Inadequate water supply Check that the water supply corresponds to specifi-
cations. The minimum specification 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 (exten-
sion hose max. 7 m)
Pressure too low, but steady
Note: Several types of acces-
sory will normally deliver a
lower pressure
Nozzle worn Change the nozzle
Start/stop valve worn Activate trigger five times in quick succession
Motor starts up but with re-
stricted or no working pres-
sure No water supply Connect water supply
Water filter clogged up Clean the water filter
Nozzle clogged up Clean nozzle
The pressure washer starts ir-
regularly by itself Pump/power gun leaky Contact your Bosch Service Centre
Water leaks from machine Leaking pump A slight water leak is permissible; in case of exces-
sive leak, contact Service centre.
No detergent taken in Adjustable nozzle on high pressure setting Select the foam setting on the 3 in1 nozzle
Detergent too dense Dilute with water
High pressure hose extension being used. Fit original hose.
Deposits or restriction in detergent circuit Flush with clean water and eliminate any restric-
tions. If the problem persists, contact your Bosch
Service Centre.
OBJ_BUCH-1953-004.book Page 13 Monday, June 10, 2013 10:39 AM