I have a lifestyle LP241 boiler and I am having problems. It is about 6 years old and I havent had problems before but now it wont allow me to turn my heating off. The programmer is working as normal but my boiler and radiators are on constantly. Many plumbers I have spoken to dont know what it is and suspect it is an electrical problem. I have turned it off then back on again and it is the same. I have been told to press the reset button but cant seem to find this anywhere. Can anyone please help?