My electric shower, Mira Go 8.5, has suddenly stopped working. It was fine the day before. There is power to the unit, but the orange light comes on when you pull the pull main cord on, and the light stays on whether the on/off button on the unit is pressed on or off. No water comes out. No sound, no noises, nothing. I took the shower head off and ran water through it from the tap tap make sure it wasn't blocked. tried rotating the shower head speed when it was back on, nothing there either. Not sure what else to try. Clearly the fact that the light stays on has something to do with this. Any ideas?