I've an electric shower fitted in the bathroom - about 3 years old. Gets used once or twice a day on average. There is a pull cord isolation switch in the ceiling.
Today the shower won't work. The light on the ceiling switch comes on, but the light on the wall-unit doesn't.
I've opened up both the ceiling switch and the wall-unit to have a look. The ceiling unit appears perfectly normal - no loose connections or anything. The wall-unit appears generally ok, but there is a fair bit of graphite around - I assume that is normal from the brushes wearing?
Is there a fuse within the wall-unit that I should be checking or could be replacing? Or any suggestion as to what part might be malfunctioning and needs replacing?
I have an identical unit downstairs that doesn't get used much (till today ) - so I could temporarily swap out components to test them I suppose. I don't have a multi-meter at hand, but can get one if needed, to test current flow etc.
Any help appreciated.
The shower unit is a triton t90xr by the way