Corrective Action - Bosch AQT Manual Original

OBJ_BUCH-1953-004.book Page 13 Monday, June 10, 2013 10:39 AM
Troubleshooting
Problem Possible Cause
Motor refuses to start Plug not connected
Mains socket faulty
Fuse faulty/blown
Extension cable damaged
Motor protector has activated
Frozen
Motor stops Fuse faulty/blown
Wrong mains voltage
Motor protector has activated
Fuses blow Fuses incorrectly rated
Motor starts but no pressure Nozzle partly blocked
Motor "sounds" but fails to Insufficient power supply
start
Voltage loss due to use of extension cable Check characteristics of extension cable
Appliance not used for a long period of
time
Problems with TSS (Total Stop System)
device
Pressure pulsating Air in the inlet water supply hose/pump
Inadequate water supply
Water filter blocked
Water supply hoses squeezed
High pressure hose too long
Pressure too low, but steady Nozzle worn
Note: Several types of acces- Start/stop valve worn
sory will normally deliver a
lower pressure
Motor starts up but with re- No water supply
stricted or no working pres-
Water filter clogged up
sure
Nozzle clogged up
The pressure washer starts ir- Pump/power gun leaky
regularly by itself
Water leaks from machine Leaking pump
No detergent taken in Adjustable nozzle on high pressure setting Select the foam setting on the 3 in1 nozzle
Detergent too dense
High pressure hose extension being used. Fit original hose.
Deposits or restriction in detergent circuit Flush with clean water and eliminate any restric-
Bosch Power Tools

Corrective Action

Connect plug
Use another socket
Replace fuse
Try without extension cable
Allow to cool for 15 minutes
Wait for pump/water supply hose/accessory to thaw
Replace fuse
Check that mains voltage corresponds to specifica-
tions on the model tag
Allow to cool for 15 minutes
Change to a mains supply higher than the pressure
washer amp consumption
Clean nozzle
Check that the voltage of the mains power supply
line is the same as that on the plate.
Contact your Bosch Service Centre
Contact your Bosch Service Centre
Allow pressure washer to run with open spray han-
dle and nozzle at low pressure until regular working
pressure is obtained
Check that the water supply corresponds to specifi-
cations. The minimum specification for the water
supply hose is 1/2" or 13 mm diameter
Clean water filter
Straighten out kinked water supply hoses
Remove high pressure extension hose. Retry (exten-
sion hose max. 7 m)
Change the nozzle
Activate trigger five times in quick succession
Connect water supply
Clean the water filter
Clean nozzle
Contact your Bosch Service Centre
A slight water leak is permissible; in case of exces-
sive leak, contact Service centre.
Dilute with water
tions. If the problem persists, contact your Bosch
Service Centre.
F 016 L70 995 | (10.6.13)
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