looking for help with a myson apollo fanfare 30/50s. when the boiler lights there's lots of banging and it sounds as if theres air in the pipes, (this happens for HW and CH) then after 30 seconds to a minute the boiler shuts down and the pilot light goes out.
On the rare occasion that the boiler will stay lit for any length of time it will fire for half a minute then stop then fire again then stop and so on until the banging starts.
So far i have drained and refilled the system, flushed the heat exchanger and changed the pump. the motorised valve synchro motor and thermo-couple are less than six months old.
any help much appreciated, many thanks
On the rare occasion that the boiler will stay lit for any length of time it will fire for half a minute then stop then fire again then stop and so on until the banging starts.
So far i have drained and refilled the system, flushed the heat exchanger and changed the pump. the motorised valve synchro motor and thermo-couple are less than six months old.
any help much appreciated, many thanks