How to Fix KitchenAid Dishwasher Not Washing Top Rack – Upper Arm, Diverter & Clogs

Описание: Today we’ll address a KitchenAid dishwasher problem where the top rack isn’t getting clean, even though the lower spray arm works fine. This usually means water isn’t being delivered to the upper spray arm due to clogs, a faulty diverter motor, or a partially blocked feed tube.

We’ll start by removing the upper rack and inspecting the upper spray arm holes. Mineral buildup or food debris can block these small jets and stop rotation. After cleaning the spray arm, we’ll check the vertical feed tube that channels water from the pump to the upper rack. If this tube has separated, cracked, or is misaligned, the top rack loses pressure.

Next, we’ll look at the diverter motor—a component that switches water flow between the lower and upper spray systems. If the diverter fails, the dishwasher may keep sending water only to the bottom arm. We’ll demonstrate how to enter diagnostic mode to test diverter function.

We’ll also inspect the manifold connection where the upper rack meets the feed tube; if water isn’t sealing properly, pressure drops immediately. By following these steps, you’ll restore full washing performance to the top rack.

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