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problem with boiler?

I have a glow worm micron 60ff
it keeps on going on and off then cuts out there is no problem with the pump or valves water cuirculation is fine
Duncan, September 2009
i'd suspect a faulty pcb, but it's hard to tell without seeing it.

Ian, September 2009
link Click here to see other fixes for Glow-worm 60FF.