throttling back the water did no good ,the boiler fired up as usual as the tap was turned on ,the water went hot then 30 secs later went cold and stayed cold!!!
I have a SIME SUPER 90 boiler that heats the house fine but when we go to use the hot water in the taps or the thermostatic shower the water goes hot ,then quickly back to cold . the taps are exactly the same . I have been told that the diverter valve is faulty but just want to know if there is...
I have a SIME SUPER 90 boiler that works fine when heating my home but when we try to get hot water,thats a different matter ,the water goes hot for 30 seconds then goes cold..................any ideas as too why this is happening?