1 demand
2 starting fan
3 bang in gas valve
4 ignition sparkling
5 flame
6 hot water!
7 no demand - bang in gas valve shut off
on which stage is your boiler after opening tap?
1 diverter valve need new membrane
2 under pressure switch need changing or maybe fan cleaning
3 spark generator dead
4 are you sure gas service valve under boiler is open? no monies in meter? gas pipe purged? then gas solenoid valve dead.
5 flame but only fiew of seconds, flame sensing device dead
6 go to bath, you stink!
7 get some beer from fridge
that in big shortcut....
Robert (Trebor Services)
July 2009
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