Bosch AQT 35-12 Notice Originale page 17

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OBJ_BUCH-1953-009.book Page 17 Thursday, September 22, 2016 12:11 PM
It is important to ensure that all hose and coupling connec-
tions are of good quality, air tight and that all washers are in
good condition and correctly seated in place. Failure to do so
may affect the self priming performance.
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 start
Insufficient power supply
Voltage loss due to use 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 accessory
Start/stop valve worn
will normally deliver a lower pres-
sure
Motor starts up but with restricted
No water supply
or no working pressure
Water filter clogged up
Nozzle clogged up
The pressure washer starts
Pump/power gun leaky
irregularly by itself
Bosch Power Tools
Water Tanks with outlet connections
When connecting the pressure washer to a water tank with a
suitable tap outlet, first connect the supply hose (not provid-
ed) to the tank outlet, open the tap to allow the water to dis-
place all the air in the hose and then connect to the pressure
washer.
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 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
(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
F 016 L81 441 | (22.9.16)
English | 17

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