Ours is still only 3 months old, but in the manual it states to use a rinse aid to help the drying process properly. But I also read in a review, in the process of buying ours, that suggested to run "sanitize" along with the wash cycle. We have done this since day 1 and have never had an issue with water still on dishes or inside washer. Maybe you tried these already, but if not maybe it will help