how can i fix my myson apollo boiler?

This is a low water content boiler and there is either air in it or the pump has gone or you have turned a valve which has stopped the flow and return to the boiler, How did you turn off the hot water was it by turning a valve????, the sound of banging is the water boiling in the boiler/ pipes, Hope this helps

Steve
April 2005

check to see if your pupm is running

d..
April 2005

is the pressure showing correct on the boiler?

22
April 2005