Bosch AQT 42-13 Manual Original página 18

18 | English
Note: When cleaning a vertical surface spray off dirt/deter-
gent from the bottom and work in an upwards direction.
Rinse from the top and work downwards.
Use with alternative water sources
This high-pressure washer will self prime and can draw water
from water tanks and natural water sources. It is IMPORT-
ANT that the water is clean and the BOSCH inlet filter is clear
and fitted to the machine.
Open tanks/containers and natural water
sources
Use the Self Priming accessory kit comprising:
– Inlet strainer with non return valve
– 3 m reinforced supply hose
– Universal coupling to the pressure washer
This enables the pressure washer to draw water up to 0.5 m
above the water level in the source. This may take up to 15
seconds.
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 Nozzle partly blocked
pressure
Motor "sounds" but Insufficient power supply
fails to start
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
F 016 L81 843 | (29.05.2018)
Submerge the 3 m hose in water to displace the air. Connect
the 3 m supply hose to the pressure washer ensuring that
the inlet strainer remains submerged in the water source.
Run the pressure washer with the lance disconnected until a
steady flow of water appears from the high pressure hose.
Stop if this has not been achieved within 25 seconds and
check all the connections. Switch off and connect the lance
and nozzle to operate.
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.
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
provided) to the tank outlet, open the tap to allow the water
to displace 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 specific-
ations on the model tag
Allow to cool for 15 minutes
Change to a mains supply higher than the pres-
sure 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 obtained
Check that the water supply corresponds to spe-
cifications. The minimum specification for the wa-
ter supply hose is 1/2" or 13 mm diameter
Clean water filter
Bosch Power Tools