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Mend Glow-worm Ultimate 50FF Home Heating Systems

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Mend Glow-worm Ultimate 50FF Glow Worm Switch

Glow worm ultimate 50ff Boiler?

The boiler immediatley blows mcb when isolator switch switched on. Fuses on PCB intact. Does it even when thermostat control knob is off and if fan is disconnected.
Im thinking a new PCB is required. Any other thoughts?

Gary P
February 2012
Glow-wormGlow-worm Ultimate 50FFHeating, Home Heating SystemsGlow Worm Switch
Check pump

Davlec
February 2012

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