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