I have an Alpha Ocean combi boiler. My problem is that when I use the hot tap for any length of time my radiators get hot even when the central heating is off. Bit of a pain in the summer but we've lived with this for a while, just turning all the radiators off at the knobs except the main one in the hall that wont go off. Yesterday though, I couldn't get hot water from my taps though my water heating is always switched on. I checked the boiler and the wee light that should come on when someone turns on the hot tap didn't light up. I had to put the heating (radiators) on in order to get hot water from the taps. Can anyone identify the problems for me so I know exactly what I'm after when I hire someone in to fix it. Thanks in advance.

sharron, February 2007

depending on the model of your boiler, it does sound like the hot water diaphragm needs to be replaced.

gary.wright53@googlemail.com, June 2007