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if the solenoid valve fails to close when
the power is disconnected, it needs
cleaning:
1.
isolate the water supplies and relieve
the pressure by operating an outlet.
2.
switch off the power and remove the
nut and the washer which hold on the
solenoid coil.
3.
remove the solenoid coil. if the
solenoid coil is in 'open circuit' then
replace it (normal impedance is
approximately 2 ohms (3022)).
4.
remove the four cap screws the
washers, the cover and the cover
spring.
5.
carefully remove the diaphragm
assembly.
6.
inspect the rubber of the diaphragm.
if the rubber is perished or damaged,
then replace the diaphragm
assembly.
7.
clean out any residue or debris from
the body and make sure that all the
holes are clear.
8.
reassemble the components in
reverse order.
Cleaning the sV3022 solenoid Valve
nut
washer
solenoid coil
cap screw
washer
cover
cover spring
diaphragm
assembly
body
sV3022 solenoid Valve
electrical
connector