I just purchased a used 1998 Windsport motor home, When I push the two controls inside the coach to shut off battery power, the battery control center box under the hood keeps clicking intermittenly. It seems I have to go back and hold the two switches off inside the coach for a short while and the clicking under the hood stops. Is this common? I am new to this and question if the control box is going to be trouble? Any help would be appreciated. Joe