KITCHENAID DISHWASHER KDTM404KPS Not Cleaning

Circulation Pump Motor

The circulation pump is the most common point of mechanical failure in this model. The internal impeller can become stripped from the shaft or the motor windings can fail, resulting in a unit that fills with water but never sprays it onto the dishes. This specific part is the updated OEM replacement for the wash motor assembly.

Water Inlet Valve

If the valve is restricted or failing, the dishwasher will not reach the proper water level before the wash cycle begins. Without sufficient water, the circulation pump will cavitate (suck air), resulting in little to no water pressure reaching the spray arms, which manifests as 'not cleaning'.

SKU: WPW10327249

Sump Filter Assembly

KitchenAid's triple filtration system can become saturated with fats and fine debris if not maintained. A clogged filter starves the circulation pump of water, causing a significant drop in spray arm pressure and leaving residue on dishes despite the motor technically running.