Bosch GHP 5-55 Manual Original página 17

OBJ_BUCH-2319-004.book Page 17 Tuesday, May 16, 2017 11:15 AM
Water Tanks with outlet connections
(see figure I)
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.
Troubleshooting
Problem
Motor refuses to start
Motor stops
Fuses blow
Motor starts but no pressure
Motor "sounds" but fails to start
Pressure pulsating
Pressure too low, but steady
Note: Several types of accessory will nor-
mally deliver a lower pressure
Bosch Power Tools
Use of detergents (see figure J)
Only use detergents recommended by the manufacturer.
Comply with the application, disposal and warning instruc-
tions of the detergent manufacturers.
Pull out the suction hose at the rear and put it into a bottle
withdetergent (not supplied with).
Pull the nozzle of the lance into low pressure position.
Switch on the gun. After a few seconds foam exits at the nozzle.
Ajust the knob at the rear to dose the quantity.
Turn the nozzle left/right to adjust the water jet.
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
Insufficient power supply
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
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
English | 17
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/acces-
sory 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 pow-
er 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 handle and nozzle at low pressure
until regular working pressure is obtained
Check that the water supply corresponds
to specifications. The minimum specifica-
tion 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 suc-
cession
1 609 92A 3EV | (16.5.17)