While you wait for answers, we may have found some information which could help you.
Click here for Burner Apollo Boilerapollo boiler banging noises ?
unable to light pilot on thorn m44/54b boiler?
I have hot water but heating is not working ?
Location of pilot light Thorn Housewarmer Super back boiler?
thorn back boiler housewarmer s?
How do I light it?