How do I add rinse aid and how do I know when it needs refilling?

The dishwasher will illuminate the 'Add Rinse Aid' indicator on the display when the rinse aid is low. To refill, open the rinse aid dispenser (9*) by pressing on the latch, add liquid rinse aid until full without overfilling, then close the lid until it clicks. Wipe up any spills with a damp cloth and do not fill the rinse aid dispenser with detergent, as this will damage the dishwasher.