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Mend Glowworm 40FF Heating Boiler

Boiler keeps firing up when heating/water is off?

My Glowworm 40FF boiler keeps firing up in the middle of the night despite no water/heating turned on. Any idea what I can do to remedy this?

Ben
March 2014
GlowwormGlowworm 40FFHeating, Home Heating SystemsHeating Boiler Glowworm

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