F9 on some of the earlier boilers is a generic fault code not neccessarily a water sensor fault.Glow-worm have a plug in diagnostic fault finder which will reveal what the F9 relates to.
F9 on some of the earlier boilers is a generic fault code not neccessarily a water sensor fault.Glow-worm have a plug in diagnostic fault finder which will reveal what the F9 relates to.
thats correct its called a diacom. or you could fit a new pcb which will give you a more specific code. Best call glow worm for repair-£215.
01773 828100
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