16
Fault Cause Remedy
f) Oil jet plugged (see B b)) Clean nozzle and screen and replace if
necessary
g) Oil filter dirty (see B b)) Clean filter
h) Oil pump or coupling
defective (see C a), b))
Replace oil pump or coupling
i) Water quantity too low See D a) - f) for cause
C Burner produces soot a) see B b), e), f), g), h) Have burner adjustment checked by
Wap Service Technician
D Burner switches off during a) Water tap closed Open water tap
operation b) Water quantity too low Check water supply line (see 2.2.2)
c) Float valve plugged Clean filter and valve
d) Intake filter plugged Clean filter
e) Additive tank empty Fill tank
f) Suction and pressure valve of
high-pressure pump defective
or dirty
Remove valve, clean and replace if
necessary
E Unit switches off and on
continuously (with spray gun
open)
a) High-pressure nozzle dirty Clean high-pressure nozzle and
replace if necessary
b) Unit calcified Decalcify as per instructions (see
3.2.7)
c) Wrong high-pressure nozzle Use high-pressure nozzle as per
nozzle table (see 3.5)
d) Automatic pressure shut-off
feature incorrectly adjusted
Adjustment by Wap Service
Technician
F Unit switches off and on a) Off/on trigger gun leaky Check off/on trigger gun
continuously (with spray gun
closed)
b) High-pressure screw
connection or pipe leaky
Tighten screw connection
c) High-pressure hose leaky Replace high-pressure hose
G Pressure too low a) Additive tank empty Fill additive tank
b) High-pressure nozzle worn Replace high-pressure nozzle
c) Filter dirty Clean filter
d) High-pressure pump sucks in
air
Fill additive tankRepair leaks
e) Suction and pressure valve of
high-pressure pump defective
or dirty
Remove valve, clean and replace if
necessary
f) Pressure and quantity control
valve open
Close valve
H Additives are not added a) Additive tank empty Fill additive tank
b) Sludge in additive tank Clean additive tank
c) Suction valve in additive
supply line dirty
Remove suction valve, clean and
replace if necessary
d) SC 702: Injector plugged Clean injector
e) SC 702: SuperClean HL Nozzle
not open Low-pressure flat
stream
Switch over to low-pressure flat
stream
To Next Page
Loading...