Hi Guys
Having a problem with F&E tank overflowing boiling hot water, 3 times in last 6 months. old Potterton Kingfisher floor boiler, pumped heating, gravity h/w. Have had system chemically cleaned and new overheat stat and thermister fitted. Was running fine (apart from rattling) for a few months, then boiled over and melted overflow from F&E again.
It's a 3 storey house, boiler on ground floor, h/w cylinder on top floor. F&E tank is above level of c/w storage tank. It fills fine. Level in F&E tank doesn't drop when hot taps are drained (to test for leak in H/w coil).
I need to do something to stop leak through ceiling again, any suggestions welcome.
Having a problem with F&E tank overflowing boiling hot water, 3 times in last 6 months. old Potterton Kingfisher floor boiler, pumped heating, gravity h/w. Have had system chemically cleaned and new overheat stat and thermister fitted. Was running fine (apart from rattling) for a few months, then boiled over and melted overflow from F&E again.
It's a 3 storey house, boiler on ground floor, h/w cylinder on top floor. F&E tank is above level of c/w storage tank. It fills fine. Level in F&E tank doesn't drop when hot taps are drained (to test for leak in H/w coil).
I need to do something to stop leak through ceiling again, any suggestions welcome.