Hi, I've been having problems with an electric shower recently and have taken it to bits to try and find the problem. On the main circuit board there's a blue capacitor that has some green colouration to the top of it (I've attached a picture below). I wonder if someone could tell me if this is a likely sign that the capacitor has failed? There is an identical capacitor on the same board that does not have this colouration. If it is likely that the capacitor has failed could anyone help me identify a replacement. The capacitor has this written on it: WKO 440 - X1 250 - Y2 1n M I'm not sure what this means as I'd expect to see a F to indicate a size in farads. If anyone could offer any help it would be much appreciated. Thanks.