can any one tell me why my i need to keep runnig the hot water to make my rads work?
and can anyone recamend a plumber in aylesbury that can fix the problem?!
at a guess with no proper information id say your heating zone valve is faulty.....endswitch isnt telling the boiler to come on but the valve is open hence the heating coming on when the hotwater valve comes on.
If you can only get CH by running HW, it's most likely you have a 3 port mid position valve that is not going beyond the mid position or if it is then you most likely have a faulty microswitch.
Do a search for 3 port mid position valve and you will find much has been written on this problem.
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