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8.4
Fault Finding for Solenoid Valves
YES
Te st ga s pre ssure a t inle t of va lve
Te st ga s pre ssure a t outle t of va lve .
P re ssure should rise on outle t
YES
Sta rt
Te st for 230v a c ross va lve
supply te rm ina ls a t the
a ppropria te tim e
whe n va lve e ne rgise s
Va lve Working
NO
F a ult e lse whe re
Che c k a ll c onne c tions a nd
c ontrols inc luding
lim it the rm osta ts
NO
F a ult e lse whe re
NO
Sole noid va lve fa ulty
Re pla c e a s ne c e ssa ry
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