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Mend Glowworm CXI Home Heating Systems

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Mend Glowworm CXI Fault Boiler F3

What does F12 fault mean on glowworm boiler?

My glowworm cxi has flashed up with an F3 then an F12 fault, how can i fix it and what does it mean?

Sam
November 2011
GlowwormGlowworm CXIHeating, Home Heating SystemsFault Boiler F3
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Free repair help for Glowworm CXI home heating systems
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