W11462455 Dishwasher Circulation Pump & Motor Assembly – The essential fix for a Whirlpool dishwasher that won't wash dishes, has no water pressure to the spray arms, leaves dishes dirty after a full cycle, fills with water but makes no washing sound, hums loudly without cleaning, or has weak spray arm performance. The circulation pump is the primary cleaning component in your dishwasher — it's the motor that pressurizes water and forces it through the spray arms at high velocity to blast food off your dishes. When the circulation pump fails due to a burned-out motor, seized bearings, cracked impeller, or failed shaft seal, the dishwasher may fill with water normally but produce no spray action, resulting in dishes that come out just as dirty as they went in. Common signs of circulation pump failure include: complete silence during the wash portion of the cycle (motor dead), a loud humming or buzzing sound without water movement (motor seized or impeller jammed), weak spray arm pressure (worn impeller), water leaking from the bottom of the dishwasher (failed shaft seal), grinding or rattling noises during wash (damaged impeller or bearings), or the dishwasher running through cycles but dishes remaining dirty. If your dishwasher fills with water, drains properly, but won't actually wash — the circulation pump is almost certainly the problem. This genuine OEM Whirlpool part directly replaces W11048807, CPF25-502, W10902589, and W10510667. Fits Whirlpool, KitchenAid, Maytag, Kenmore, Amana, Jenn-Air, and Ikea dishwashers. Moderate 45–60 minute DIY repair that restores full cleaning power.