I have a Worcester 240 combi and it appears to be heating all day, without the pilot light being on.
The boiler casing is hot to the touch, and it seems to have had an impact on the cold taps, which run hot for 10 seconds or so before going cold. This is a new issue. My hot water supply has always been good an is unaffected.
I have my radiators switched off so it doesn't affect the heating in the house.
Can anyone give me any thoughts on what they think the problem could be?