I have an Icon 23t combi boiler situated in my upstairs bathroom.
All has been fine with it until recently. Now, if I turn on the hot tap in the bathroom the boiler fires and the water gets hot as it should. If I turn on any of the downstairs taps or the try to use the downstairs shower, the boile doesn't fire at all. CH works fine.
Any ideas?
All has been fine with it until recently. Now, if I turn on the hot tap in the bathroom the boiler fires and the water gets hot as it should. If I turn on any of the downstairs taps or the try to use the downstairs shower, the boile doesn't fire at all. CH works fine.
Any ideas?