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so whats that then mate, i need a new spark generator and what do i need to do for f4? is SERV meaning it needs a service by any chance? ive passed all my gas elements ccn1 cen etc got corgi rep coming to me friday so with a bit of luk i can work on the boiler soonish? thanks so far mate

ive just had a call saying f4 flashes up on a boiler quite reguarly and f2 ow and again. what does this mean on this type of boiler? i dont have the instructions to hand so cant see the fault fining page. anybody know of the problems? also he says serv comes up aswel?? thanks guys any help...