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We have 12 questions about mending 'diverter valve boiler glow-worm'
I have a 30cx glowwarm that is showing F4 as fault.I have no hot water?
Which way to turn slotted screw to adjust water pressure up on a glow worm ?
Is it normal that the flame is burning all the time?
My central heating is not working?
Home heating systems?
My radiators not heating up?
GS 24i junior boiler timer broken?
BMU error code?
How to fix glow worm 18 hxi ?