How do I check and refill the rinse aid dispenser?

Check the center of the Fill Indicator cap — clear means it needs filling, and if an 'E' is visible, the dispenser is empty. The rinse aid dispenser holds 6 oz (175 mL) and under normal conditions will last about three months. To refill, open the door completely, remove the Fill Indicator cap, add rinse aid to the smallest opening in the lower part of the dispenser, and replace the cap tightly. (Page 12)