While you wait for answers, we may have found some information which could help you.
Click here for Thorn Olympic Boilercan I fix my internal flue hood on Thorn Olympic 15/60?
thorn apollo boiler no gas coming through ?
unable to light pilot on thorn m44/54b boiler?
Location of pilot light Thorn Housewarmer Super back boiler?
thorn back boiler housewarmer s?
what boiler would i replace my thorn 44/54 with?