on tuesday 25/1/05 my boiler (vaillant combi boiler just over a year old)
started to make a high pitched squeal / noise only when the heating is on, so i bled all radiators no air in any of them. Only way to stop this noise is to turn the heating off and then run a tap for about a minute any ideas please
started to make a high pitched squeal / noise only when the heating is on, so i bled all radiators no air in any of them. Only way to stop this noise is to turn the heating off and then run a tap for about a minute any ideas please