The baskets are too full. The dishes have not been arranged properly. The spray arms do not rotate. The spray arms are clogged. The filters are clogged. The filters are not in position. Not enough detergent has been used or it is unsuitable. The detergent is old or has gone hard. The salt container cap is not properly closed. The washing programme selected is too gentle. The rinse aid has run out or too little is being used. Check that there is salt and that the salt cap is tight. Ensure the water softener has been adjusted to suit the water hardness in your area. The dishes have been left too long inside the machine.
