Fault Finding - Bosch aquatak 120 i Bedienungsanleitung

EURO • Printed in Italy • BA F016 L69 836 • AQUATAK 120 • GB • OSW 12/01
F016 L69 836 - GB Seite 5 Freitag, 14. Dezember 2001 11:54 11

Fault Finding

The following table gives checks and actions that you can perform if your machine does not operate cor-
rectly. If these do not identify/remedy the problem, contact your service agent.
Warning: Switch off and remove plug from mains before investigating fault.
Symptom
Motor refuses to start
Motor stops
Fuses blow
Excessive working pres-
sure
Pressure pulsating
Pressure too low, but
steady
Note: Several types of
accessory will normally
deliver a lower pressure
Motor starts up but no
working pressure
The pressure washer
starts irregularly by itself
Water leaks from
machine
16 • F016 L69 836 • TMS • 10.12.01
Possible Cause
Plug not connected
Mains socket faulty
Fuse faulty / blown
Extension cable damaged
Motor protector has activated
Fuse faulty / blown
Wrong mains voltage
Motor protector has activated
Fuses low-powered
Nozzle partly blocked
Air in the inlet water supply
hose / pump
Inadequate water supply
Water strainer blocked
Water supply hoses squeezed
High pressure hose to long
Nozzle worn
Start / stop valve worn
Frozen
No water supply
Water strainer clogged up
Nozzle clogged up
Pump / spray handle leaky
Leaking pump
English - 5
Remedy
Connect plug
Use another socket
Replace fuse
Try without extension cable
Allow to cool for 5 minutes
Replace fuse
Check that mains voltage corresponds
to specifications on the model tag
Allow to cool for 5 minutes
Change to a mains supply higher than
the pressure washer amp consump-
tion
Clean nozzle
Allow pressure washer to run with open
spray handle and nozzle at low pres-
sure until regular working pressure is
obtained.
Check that the water supply corre-
sponds to specifications. The minimum
specification for the water supply hose
is 1/2" or 13 mm diameter.
Clean water strainer
Straighten out water supply hoses or
kinked
Dismount high pressure extension
hose. Retry (extension hose max. 7 m)
Change the nozzle
Activate trigger five time in quick suc-
cession
Wait for pump / water supply
hose / accessory to thaw
Connect water supply
Clean the water strainer
Clean nozzle
Contact your Bosch Service Center
6 drops per minute are permissible. In
case of more serious leakage, you
should contact your Bosch Service
Centre.