Whirlpool DU945PWPQ2 dishwasher Parts

Most problems on a Whirlpool DU945PWPQ2 dishwasher come down to a few basics: the door not latching, no power, water not filling, poor draining, or weak washing. We recommend starting with the quick checks below, then using the troubleshooting steps in the DU945PWPQ2 owner's manual.

Quick checks we use first (fastest wins)

• Confirm the door closes tightly and latches; a bad latch can stop the cycle (see dishwasher door latch WP3380854).
• Verify power: breaker on, fuse good, and the dishwasher is getting power.
• Make sure the water shut-off valve is fully open.
• If it will not fill, press the overfill protection float down to be sure it moves freely (a stuck float prevents filling).
• If it runs a long time, check hot water supply; the dishwasher can extend the cycle while heating.
• If water remains in the tub, check for a drain restriction (kinked hose, clogged connection, or air gap issue).

Symptom-to-cause guide

What you notice	Most common cause	What to do next
Won’t start or stops mid-cycle	Door not latched, power issue, motor overload reset	Latch door firmly; check breaker; wait a few minutes for motor reset
Won’t fill	Water valve closed, float stuck	Open shut-off valve; free the float
Runs too long	Incoming water not hot enough	Run hot water at sink first; use heated options if available
Water left in bottom	Drain path restricted	Inspect drain hose routing (see dishwasher drain hose WP3374077)

Why it matters

Dishwashers rely on correct door latching, proper fill level (float), and a clear drain path to protect your kitchen from leaks and to keep wash performance consistent. Fixing the root cause also prevents repeat failures of parts like the inlet valve and pump.

Helpful model-specific resources

• Use the troubleshooting section in the DU945PWPQ2 owner's manual for the exact checks Whirlpool lists for “does not run,” “will not fill,” “runs too long,” and “water remains.”
• If you see a blinking pattern or error behavior, match it using Whirlpool dishwasher error codes.

Last updated: February 2026

On the Whirlpool DU945PWPQ2 dishwasher, the F8 E2 (F8E2) code points to a drain pump electrical problem. We recommend resetting power first, then checking the drain pump wiring and testing the pump motor windings; an open winding commonly triggers this code.

What to do first (quick checks)

• Turn off power at the breaker for 1 minute, then restore power and try a Drain/Cancel.
• Make sure the dishwasher door fully latches; a poor latch can interrupt a cycle and mimic drain issues.
• Check for standing water in the tub after the drain step.
• Inspect the sink drain and garbage disposer inlet for a clog that can slow draining.
• Confirm the drain hose is routed high under the counter (high loop) and not kinked.

Electrical checks that match an F8E2

If the quick checks do not clear the code, focus on the drain circuit:

• With power off, inspect the harness connection at the drain pump for loose pins or corrosion.
• Check wiring for rub-through near the base and where it passes through panels.
• Test the drain pump motor windings with a meter; an open circuit indicates a failed pump motor.

What you find	What it usually means	What to do next
Code clears after power reset	Control glitch or temporary interruption	Run a full cycle and monitor
Wiring loose/damaged	Intermittent drain pump power	Repair/secure wiring, retest
Pump winding open	Drain pump motor failed	Replace the pump motor

Parts that are commonly involved

These model-matched parts often come up during drain-related troubleshooting:

• Pump motor W10428167
• Dishwasher drain hose WP3374077
• Valve-inlt W10844024 (if the unit is overfilling and then struggling to drain)

Why it matters

When the drain pump cannot run electrically, water can remain in the tub, cycles can stop mid-program, and the dishwasher may not dry well because it never reaches the correct drain and heat portions of the cycle.

For wiring locations, component access, and troubleshooting steps specific to this series, use the DU945PWPQ2 owner's manual.

Last updated: February 2026

On Whirlpool dishwasher model DU945PWPQ2, a bottom-of-door leak is usually caused by a door seal that is worn or not seated correctly, a tub that is not level, or spray hitting the door area because a spray arm is blocked or not rotating freely. Confirm the seal condition and leveling first.

Quick checks that fix most bottom-of-door leaks

• Inspect the full perimeter of the door gasket for tears, flattening, or gaps.
• Clean the gasket and the mating surface on the tub lip; residue can create a leak path.
• Make sure the dishwasher is level and the door-to-tub spacing is even on both sides.
• Verify the spray arm(s) rotate freely; handles or tall items can stop rotation.
• Confirm nothing is loaded between the bottom rack and the side of the tub (it can disrupt water flow near the inlet opening).

If the gasket is damaged or permanently compressed, replacing the dishwasher door seal is the correct repair for DU945PWPQ2.

Parts that commonly solve this problem

Symptom at the door	Most likely cause	Part to consider
Drips from bottom corners	Gasket not sealing evenly	Dishwasher door seal WPW10509257
Leak happens only during wash action	Spray pattern deflecting toward door	Check spray arm rotation and loading
Sudsy water at the door	Wrong detergent or too much soap	Use dishwasher detergent only

Leveling and installation items that matter

The installation instructions call out checking that the dishwasher remains level and that the spacing between the inner door and tub is equal on both sides. If the unit is tipped forward or twisted in the opening, water can push past the bottom edge of the door.

• Check front-to-back level (slight rear tilt is common, but avoid a forward tilt).
• Check side-to-side level.
• Open the door a few inches and compare the left and right door-to-tub gap.
• If the dishwasher shifts when the door opens, confirm it is properly secured.

Use the DU945PWPQ2 installation guide for the model-specific leveling and spacing checks.

Why it matters

A small door leak can quickly lead to water damage and can also cause poor wash results because water pressure and spray action are no longer contained inside the tub.

Last updated: February 2026