Found float switch for power rinse fill control sticking. Unit was flooding tank with fresh water and pulling temp down. Once got to stop filing temp went up. to 164F. Okay to order float switch. 4/7/17 Replaced switch for power rinse fill. On arrival fill was not shutting off. Also, sometimes heat would not come on for power rinse. Had to pull switch and magnet disk out and reposition magnet on disk. Tank now fills and does not overflow. Ran machine and tank temp was 166. Range 160-190. Unit needs bearing on rack agiitator. Sandy said okay to order.