hi please help,I've just had new 3 port valve changed because when hw on had 2 hot radiators 1 upstairs 1 downstairs was told old valve was passing by.
Problem is had new valve fitted guess what same thing happens when hw on A and B ports ie pipes coming out are both hot shouldn't B be cold? WHAT'S GOING ON. vice versa with heating on B and A are both hot like before shouldn't A be cold?
HELP
Problem is had new valve fitted guess what same thing happens when hw on A and B ports ie pipes coming out are both hot shouldn't B be cold? WHAT'S GOING ON. vice versa with heating on B and A are both hot like before shouldn't A be cold?
HELP