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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
Heating, Home Heating Systems
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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Mend Heating, Home Heating Systems

Worcester boiler dripping water?

Worcester boiler dripping water, can I just tight the screw? The icon next to the valve looks like radiators... [Read more]
Mend Heating, Home Heating Systems

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Following a F22 fault where we had no heating and only cold water from the hot water tap, I topped up the syst... [Read more]
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My temp is showing on the reciever alot higher than it actually is & each time I turn the temp up to get the h... [Read more]
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Mend Home Heating Systems
Mend Heating, Home Heating Systems
Free repair help for home heating systems