We were out on a site the other evening hooked up to the mains with 5 habitation lights on,the tv on and aerial booster on. The missus ran some water to fill the kettle when she turned off the tap the pump kept on running.... if we switched the control panel from the centr position to leisure everything worked fine and if we turned off 1 light everything worked fine. anything wrong or is it us. are we using the control panel correctly being in the centre position when on hook up or should it be to the leisure battery setting? I`m sure the handbook says we should be in the centre when on hook up,but reading other postings has started a little doubt. Someone on another forum suggested we were outgunning the built in charging unit but as I understand it we are not charging in the mid position. Are we not actually just draining the battery I`m confused!!