Heating / Hot Water Problems?

Oct 05 installed a 24i Junior always at this time of year having had the heating off and only the hot water on I have to use the reset button regularly. My insurance have replaced 3 circuit boards and the last one was fitted 18/08/10 which has made no difference as I have had to reset for heating and hot water on a daily basis (4-5 times a day) Engineers say that until this boiler stops completely that is only when they will discover what this fault is. My concern is the winter is fast approaching and I most certainly do not want to be without heating. I have been told by the engineers that I can carry on resetting as often as is required (I am not in a flat but on two levels) Has any one experienced this same problem and if so what was the result.