I have an Ariston Eurocombi boiler A23MFFI with hot water problem. The problem started if you selected hot water only, there wouldn't be any hot water coming out of tap. If you selected central heating and hot water, the hot water would work fine. It then got worse, no hot water with either selection. I got an engineer out and he said it was the diverter valve. The pin in the valve is not coming out enough to engage the micro switch. He changed the valve, and now the pin is engaging the micro switch but the water goes hot and then the boiler shuts down too quickly, he then changed the temp. sensor on the diverter valve but with nothing changed. Now he tells me it could be the pcb. Can anyone help please.
One thing I noticed after the diverter valve was changed, the boiler is noisy every time it starts, for about 5 to 10 secs only.
By the way central heating works fine apart from the noise mentioned above.
One thing I noticed after the diverter valve was changed, the boiler is noisy every time it starts, for about 5 to 10 secs only.
By the way central heating works fine apart from the noise mentioned above.