Dishwasher Won't Wash or Won't Drain? Pump & Motor Assembly W11416362 – Fix Humming With No Water Fast

If your KitchenAid or Whirlpool dishwasher fills with water but the spray arms don't spin, hums without washing, or won't drain at the end of a cycle, a failed pump and motor assembly is the most likely cause. In most KitchenAid-built dishwashers, the pump and motor assembly is the core mechanical component — the motor drives the circulation pump that pressurizes water through the spray arms for cleaning, and also drives the drain pump that evacuates dirty water at the end of each cycle. When the motor seizes, the impeller cracks, or the shaft seal fails, the dishwasher loses its ability to wash, drain, or both — and no amount of resetting or cleaning the filter will fix it. ⚡ One of the highest-cost but most definitive repairs on the KitchenAid KDTM, KDPM, and KDFM platform. Part W11416362 is the genuine OEM replacement that restores full wash and drain function, directly superseding W11345228 and W11414076 with no modification required.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Dishwasher powers on, fills with water, and controls respond normally
• ✔ Drain filter and sump have been cleaned and are free of debris or foreign objects
• ✔ Door latch, float switch, and water inlet valve have been confirmed functional
• ✔ Control board has been tested or ruled out as the source of the fault
• ✔ ONLY problem is: spray arms don't spin with water in the tub, motor hums but pump won't turn, standing water after the cycle, grinding noise during operation, or water leaking from underneath the unit

Not sure? Send us your model number — we'll confirm before you order.

🔧 Common Symptoms

• Dishwasher fills with water but spray arms don't spin — nothing happens after fill
• Motor hums or buzzes loudly but pump won't turn — seized impeller or motor
• Standing water in the tub after the cycle — drain impeller has failed
• Weak water pressure — dishes come out dirty or with food still attached
• Loud grinding or growling noise during the wash or drain phase
• Water leaking from underneath the dishwasher — shaft seal failure allowing water onto the motor windings

✔ If these symptoms match, the pump and motor assembly is the most likely failed component in the system.

✔ In most cases, replacing the pump and motor assembly restores full wash and drain operation immediately.

📦 Part Details

• Part Number: W11416362
• Type: Dishwasher pump and motor assembly — combined circulation pump (wash) and drain pump driven by a single motor; includes impeller, shaft seal, and mounting hardware
• Replaces: W11345228, W11414076 (OEM direct-fit, no modification required)
• Brands: KitchenAid, Whirlpool, Maytag, Amana, Jenn-Air

⚙️ Installation

Skill Level: MODERATE — 45 to 75 minutes. Disconnect power at the breaker and turn off the water supply before starting. Pull the dishwasher out from the cabinet to access the pump from below, or remove the lower spray arm and filter assembly to access from inside the tub depending on model. Disconnect the wiring harness and water inlet/drain hose connections before removing the pump. Transfer any mounting hardware from the old pump to the new assembly if not included. Torque all hose clamps and connections firmly — a loose connection will cause leaks under the dishwasher. Run a short test cycle and inspect for leaks before pushing the unit back into the cabinet.

✓ Compatible Models

Confirmed compatible with KDFM404KBS0, KDFM404KBS1, KDFM404KBS2, KDFM404KBS3, KDFM404KPS, KDFM404KPS0, KDFM404KPS2, KDFM404KPS3, KDPM604KBS0, KDPM604KBS2, KDPM604KPS0, KDPM604KPS1, KDPM604KPS2, KDPM704KPS0, KDPM704KPS1, KDPM704KPS2, KDPM704KPS3, KDPM804KBS0, KDPM804KBS2, KDPM804KPS0, KDPM804KPS1, KDPM804KPS2, KDTM404KBS0, KDTM404KBS1, KDTM404KBS2, KDTM404KBS3, KDTM404KPS0, KDTM404KPS1, KDTM404KPS2, KDTM404KPS3, KDTM405PPS0, KDTM405PPS1, KDTM604KBS0, KDTM604KBS1, KDTM604KBS2, KDTM604KBS3, KDTM604KPS0, KDTM604KPS2, KDTM604KPS3, KDTM704KPS0, KDTM704KPS1, KDTM704KPS2, KDTM704LPA1, KDTM804KBS0, KDTM804KBS2, KDTM804KBS3, KDTM804KPS0, KDTM804KPS2, KDTM804KPS3 plus additional KitchenAid/Whirlpool models. Contact us to verify your model number before ordering.

💡 Pro Tip

🔗 Model Repair Pages

KDFM404KBS0, KDFM404KBS1, KDFM404KBS2, KDFM404KBS3, KDFM404KPS0, KDFM404KPS2, KDFM404KPS3, KDPM604KBS0, KDPM604KBS2, KDPM604KPS0, KDPM604KPS1, KDPM604KPS2, KDPM704KPS0, KDPM704KPS1, KDPM704KPS2, KDPM704KPS3, KDPM804KBS0, KDPM804KBS2, KDPM804KPS0, KDPM804KPS1, KDPM804KPS2, KDTM404KBS0, KDTM404KBS1, KDTM404KBS2, KDTM404KBS3, KDTM404KPS0, KDTM404KPS1, KDTM404KPS2, KDTM404KPS3, KDTM405PPS0, KDTM405PPS1, KDTM604KBS0, KDTM604KBS1, KDTM604KBS2, KDTM604KBS3, KDTM604KPS0, KDTM604KPS2, KDTM604KPS3, KDTM704KPS0, KDTM704KPS1, KDTM704KPS2, KDTM704LPA1, KDTM804KBS0, KDTM804KBS2, KDTM804KBS3, KDTM804KPS0, KDTM804KPS2, KDTM804KPS3