Whirlpool DU1055XTPS3 dishwasher Parts

The most common Whirlpool dishwasher problem we see on models like DU1055XTPS3 is drainage trouble: water left in the bottom because the drain path is restricted or the drain system is not moving water out fast enough. The good news is many drain issues are caused by simple clogs and are fixable without major parts.

Most common symptoms and what they usually mean

• Standing water after the cycle: clogged drain hose, blocked sump area, or a drain pump issue
• Dirty dishes or grit: chopper or filter area clogged, weak wash circulation, spray arm blockage
• Leaks at the door: worn or mis-seated door seal
• Poor drying: heater not heating, rinse-aid empty, venting issue
• No heat or lukewarm results: heater circuit problem or heating component failure

Quick checks we recommend first (before replacing parts)

1. Cancel/drain the cycle and listen for the drain motor running.
2. Check the sink drain or garbage disposer inlet for a blockage.
3. Inspect the drain hose routing for kinks and make sure it has a proper high loop.
4. Clean debris from the sump area and confirm spray arms spin freely.
5. Run a cleaning cycle and follow a regular maintenance routine using the steps in how to clean and maintain your dishwasher.

Parts that commonly solve these problems on DU1055XTPS3

If basic cleaning and hose checks do not fix it, these model-matched parts are common next steps:

Problem area	What fails	Model-matched part to consider
Not draining	Split, clogged, or restricted drain line	Dishwasher drain hose 8269144A
Leaking at door	Door gasket worn, torn, or flattened	Dishwasher door seal W10542314
Not drying or not heating	Heater not warming water	Dishwasher heater W10518394

Why it matters

Drainage and circulation problems can cascade: leftover water and food soil reduce cleaning performance, increase odors, and can strain the pump and motor over time. Fixing the drain path early is usually the fastest, lowest-cost win.

Last updated: February 2026

A Whirlpool dishwasher like model DU1055XTPS3 typically lasts 10 to 12 years with normal household use. Lifespan depends most on water quality, how often it runs, and whether wear items (seals, hoses, heating parts) are replaced promptly when symptoms show up.

What affects lifespan the most

• Hard water and mineral buildup: shortens heater, pump, and spray performance over time.
• How often you run it: multiple loads per day wears the pump, seals, and racks faster.
• Cleaning and maintenance: a clean filter area and spray path reduces strain on the motor.
• Leaks and door sealing: small leaks can lead to bigger failures if ignored.
• Drying performance: weak heating can leave moisture behind and increase odor and residue.

Maintenance that helps you reach (or beat) 10 to 12 years

• Run a monthly cleaning cycle using a dishwasher cleaner.
• Keep the bottom of the tub clear of labels, glass, and food scraps.
• Use rinse aid and the correct detergent amount for your water hardness.
• Check for slow draining and correct it early (kinks, clogs, disposal plug issues).
• Inspect for drips at the door and replace sealing parts when needed.

Common “life-extending” parts for DU1055XTPS3

Symptom	Likely wear area	Example part for this model
Dishes not drying well	Heating circuit	Dishwasher heater W10518394
Water on floor at front	Door sealing	Dishwasher door seal W10542314
Slow or no drain	Drain path	Dishwasher drain hose 8269144A

Why it matters

If your DU1055XTPS3 is near the 10 to 12 year mark, replacing a targeted part (like a heater, door seal, or drain hose) often restores performance and prevents secondary damage, which is usually more cost-effective than running the dishwasher until a major leak or motor failure occurs.

Last updated: February 2026

On a Whirlpool dishwasher like model DU1055XTPS3, the most reliable way to get the right replacement part is to start with the model and serial tag on the dishwasher, then use that model to look up the exact part you need (instead of guessing by appearance).

Where to look for the model and serial tag

Check these common locations on Whirlpool dishwashers:

• Along the top or side edge of the inner door (visible when you open the door)
• On the door frame around the tub opening
• Occasionally on the side of the tub near the front opening

Once you find the tag, write down:

• Model number (example: DU1055XTPS3)
• Serial number (helps confirm production series)

How to find the part number you actually need

The tag usually does not list every replaceable part number. Instead, use the model number to match the correct part listing for your exact dishwasher.

A quick way to narrow it down is to identify the part by function, then match it to the correct item for DU1055XTPS3, such as:

• Heating problems: dishwasher heater W10518394
• Leaks at the door: dishwasher door seal W10542314
• Not draining: dishwasher drain hose 8269144A
• Poor wash performance: dishwasher chopper assembly W10083957V

Quick ID checklist (before you order)

Use this checklist so you do not end up with the wrong part:

• Confirm the full model number matches exactly: DU1055XTPS3
• Compare the part name (heater, drain hose, door seal, etc.) to your symptom
• Check for left vs. right orientation (common with door and rack hardware)
• Inspect for broken mounts, cracks, or burn marks to confirm the failed component
• If the dishwasher is dead, check power-related items before ordering major parts

Common “part number” terms (what they mean)

Term you see	What it’s used for	Example
Model number	Identifies the dishwasher	DU1055XTPS3
Part number	Manufacturer’s number for the part	8572861
Part ID	Sears PartsDirect identifier for the part page	W10518394

Why it matters

Whirlpool often uses similar-looking parts across multiple dishwasher series. Using the DU1055XTPS3 model tag to match the correct part prevents fit issues, wiring mismatches, and repeat repairs.

Last updated: February 2026