Corrective Action - Bosch AQT 35-12 Manual Original

OBJ_DOKU-35451-007.fm Page 14 Thursday, July 17, 2014 11:40 AM
14 | English
Troubleshooting
Problem Motor refuses to start
Motor stops
Fuses blow
Motor starts but no pressure
Motor "sounds" but fails to start Insufficient power supply
Pressure pulsating
Pressure too low, but steady
Note: Several types of accesso-
ry will normally deliver a lower
pressure
Motor starts up but with re-
stricted or no working pressure
The pressure washer starts ir-
regularly by itself
Water leaks from machine
No detergent taken in
F 016 L70 995 | (17.7.14)
Possible Cause Plug not connected
Mains socket faulty
Fuse faulty/blown
Extension cable damaged
Motor protector has activated
Frozen
Fuse faulty/blown
Wrong mains voltage
Motor protector has activated
Fuses incorrectly rated
Nozzle partly blocked
Voltage loss due to use of exten-
sion cable
Appliance not used for a long pe-
riod of time
Problems with TSS (Total Stop
System) device
Air in the inlet water supply
hose/pump
Inadequate water supply
Water filter blocked
Water supply hoses squeezed
High pressure hose too long
Nozzle worn
Start/stop valve worn
No water supply
Water filter clogged up
Nozzle clogged up
Pump/power gun leaky
Leaking pump
Adjustable nozzle on high pres-
sure setting
Detergent too dense
High pressure hose extension be-
ing used
Deposits or restriction in deter-
gent circuit

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 specifications 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
Check characteristics of extension cable
Contact your Bosch Service Centre
Contact your Bosch Service Centre
Allow pressure washer to run with open spray handle and
nozzle at low pressure until regular working pressure is ob-
tained
Check that the water supply corresponds to specifications.
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 (extension
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 excessive leak,
contact Service centre
Attach the High Pressure Foam nozzle or select the foam
setting on the 3 in1 nozzle
Dilute with water
Fit original hose
Flush with clean water and eliminate any restrictions. If the
problem persists, contact your Bosch Service Centre.
Bosch Power Tools