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Mend Glowworm Flexicom 18HX Boiler Heating Fault

What is the F4 fault on Glowworm Flexicom 18HX ?

Our Glowworm Flexicom 18 HX gas boiler is not working-F4 is dissplayed, have tried to reset it, but but still shows F4 and still not working.

Mike
October 2011
GlowwormGlowworm Flexicom 18HXHeating, Home Heating SystemsBoiler Heating Fault
check condensation drain pipe for blockages /the pipe that vents outside ,the f4 fault is usually associated with a fault on the ignition.hope that helps.

killerdanny
October 2011

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