Black & Decker BW18 Original Instructions Manual page 29

Problem
Pump does not reach
working pressure
Pump pressure drops during
suddenly use
Motor "buzzes" but fails to
start
Motor fails to start
Water leakages
Appliance noisy
Oil leakages
TSS versions only: appliance
starts even with gun trigger
released
TSS versions only: no water
delivery when gun trigger is
depressed (with supply hose
connected)
Possible Causes
Nozzle worn
Water filter fouled
Insufficient water supply
Air being sucked into system
Air in pump
Adjustable nozzle not positioned correctly
Thermostatic valve tripped
Water being sucked from an open
container from a height of more than
0.5 m.
Water being sucked from an external tank
Inlet water too hot
Nozzle clogged
Inlet filter (7) fouled
Power supply voltage too low
Voltage drop due use of extension cable
Appliance not used for a long period
of time
Problems with TSS device
No electrical power
Problems with TSS device
Appliance not used for a long period
of time
Seals worn
Safety valve tripped and discharging
Water too hot
Seals worn
High pressure system or pump circuit
not watertight
Nozzle clogged
ENGLISH • 29
Solution
Replace nozzle
Clean filter (7) (Fig. E)
Turn on water supply tap fully
Check tightness of hose fittings
Switch off the appliance and keep depressing
and releasing the gun trigger until the water
comes out in a steady flow. Switch the appliance
back on again.
Set nozzle (4) (+) setting (Fig. C)
Wait for correct water temperature to be
restored
Reduce the suction height.
Connect appliance to the mains water supply
Reduce temperature
Clean nozzle (Fig. E)
Clean filter (7) (Fig. E)
Check that the voltage of the mains power supply
line is the same as that on the plate (Fig. B)
Check characteristics of extension cable
Contact your nearest Authorised Service Centre
Contact your nearest Authorised Service Centre
Check that the plug is firmly in the socket and
that the mains voltage supply is present (*)
Contact your nearest Authorised Service
Centre
Using the tool unjam the motor through the hole
at the rear of the appliance (in models with this
feature)
Have the seals replaced at your nearest
Authorised Service Centre
Contact an Authorised Service Centre
Reduce temperature (see technical data)
Contact your nearest Authorised Service
Centre
Contact your nearest Authorised Service
Centre
Clean nozzle (Fig. E)