ariston euro combi A/23mffi-A/27 mffi the boiler does not get hot water whether the heating is on or not you used to be able to get hot water with heating on but now cant get hot water at all please can you give me some advise thankyou
it maybe the diverer valve but check the hotwater flow switch which is located on the flow group, as the diaphram splits & stops the flow switch from working
ellie, July 2009
it will be the diverter valve that is duff, sorry you need a plumber