This Electronic Battery Charger Unit is fitted in our Chausson Flash 08 alongside the Electrical trips/fuses. It has a push switch shown in the bottom right and I am not sure if it should be pressed so that it is in, or left in the out position. If it is pressed so the button is in, a red light comes on and at the moment this seems to result in the main trip going off. Don't know if I have an electrical problem that causes this to happen but it would be a good start to know if this charger should be in the in or the out position. Can anyone help ...... please