While you wait for answers, we may have found some information which could help you.
Click here for Thorn Olympic Boilerapollo boiler banging noises ?
thorn m44 boiler fault?
what boiler would i replace my thorn 44/54 with?
can I fix my internal flue hood on Thorn Olympic 15/60?
I have hot water but heating is not working ?
thorn back boiler housewarmer s?