A Whirlpool washing machine that finishes a cycle with detergent still sitting in the dispenser drawer is experiencing a problem that should not be ignored. Proper detergent dispensing is essential for effective cleaning, and a failure in this system can leave clothes dirty, create buildup inside the washer, and eventually contribute to additional operating problems. Several components can prevent detergent from reaching the wash tub. The dispenser itself may be clogged, the water inlet valve may not be supplying enough water, or an internal water channel may be restricted. Identifying the actual cause requires checking how the washer fills and how water moves through the dispenser during the cycle.