My Kenmore stackable washer/dryer combo will stop on the rinse cycle and leak water when the load gets out of balance (strangely it is the smaller loads) like one or two pair of trousers and a towel or two. What I do is grab the agitator an slam to all four corners or north south east an west several times resort the load and it goes back to working...sometimes it has to be done several times for the 'sensor' to reset itself.