Whirlpool GU2455XTSS3 undercounter dishwasher Parts

In the Whirlpool GU2455XTSS3 dishwasher, the filter (filter module) is located in the bottom of the tub under the lower rack, near the lower spray arm area. Pull the lower rack out to access it and identify the filter module.

How to find it quickly

• Turn the dishwasher off and let it cool if it just ran (the heating element area can be hot).
• Pull the lower rack straight out.
• Look at the bottom center area of the tub around the base of the lower spray arm.
• Identify the filter module in the sump area (bottom of the tub).
• If you see standing water or heavy debris, remove large pieces first before handling the filter.

What you will see around the filter

The manual’s parts and features diagram shows several items in the same bottom-tub area, which helps you confirm you are looking in the right place:

Bottom-tub item	What it does	Why it helps you locate the filter
Filter module	Traps food soil and helps protect the pump	This is the part you are looking for
Lower spray arm	Spins and sprays water upward	The filter module sits near its base
Heating element	Heats water and helps drying	Confirms you are in the correct bottom area
Overfill protection float	Helps prevent overfilling	Another landmark near the sump area

Why it matters

A clogged or dirty filter module can reduce wash performance, leave grit on dishes, and contribute to poor draining. Keeping the filter area clear helps the circulation system and sump work the way Whirlpool designed it.

Helpful reference

For the exact layout and part names used for this model family, use the owner's manual.

Last updated: February 2026

Whirlpool dishwashers typically last 10 years. For your Whirlpool GU2455XTSS3 undercounter dishwasher, regular cleaning, correct detergent use, and fixing small leaks or heating issues early are the biggest factors that keep it running for its full service life.

Typical lifespan and what affects it

Most dishwashers wear out from heat, moisture, and moving parts. These factors have the biggest impact:

• Water quality and temperature (hard water and low incoming temp increase wear and cycle time)
• How often you run it (daily use wears racks, seals, and pumps faster)
• Detergent and rinse aid habits (too much detergent can leave residue; rinse aid helps drying)
• Filter and sump cleanliness (food buildup strains the circulation system)
• Small leaks (even minor seepage can damage wiring and components over time)

Parts that commonly determine “end of life”

If the dishwasher is otherwise in good shape, replacing a few key parts often restores performance.

Symptom	Common wear area	Example part for GU2455XTSS3
Dishes not drying, long cycles	Heating circuit	Dishwasher heating element W10518394
Water on floor at the door	Door sealing surface	Dishwasher door seal W10542314
Dead or intermittent power	Electrical protection	Fuse W10258275
Poor fill or no fill	Water supply control	Dishwasher water inlet valve WPW10158389

How to extend the life of your GU2455XTSS3

We recommend these maintenance habits because they reduce strain on the motor, heater, and seals:

• Scrape heavy food off dishes; avoid loading with bones, seeds, or labels
• Run hot water at the sink before starting a cycle
• Clean the door sealing area regularly; wipe the gasket and mating surface
• Use the correct amount of detergent; reduce if you see white residue
• Check that the overfill float moves freely

Why it matters

A dishwasher near the 10-year mark can still be dependable, but small issues (like a weak heater circuit or a flattening door gasket) can quickly turn into poor cleaning, longer run times, and leaks. The troubleshooting and care steps in the owner's manual help you catch those problems early.

Last updated: February 2026

Poor cleaning and draining problems are the most common issues we see on Whirlpool dishwashers like model GU2455XTSS3. In many cases, the root cause is a clog (filters, sump area, drain hose) or a heating issue that leaves water cooler than intended, which can also make cycles run longer.

Most common symptoms and what they usually point to

• Dishes not getting clean: blocked spray paths, heavy soil buildup, or weak wash circulation
• Water left in the tub: partial drain restriction, sump obstruction, or a drain path issue
• Won’t start or stops mid-cycle: door not fully latched, Start/Resume interruption, or power issue
• Runs a long time: unit is heating water to temperature (often normal), or heater circuit trouble
• Clean light flashing: heater circuit problem (common trigger for service-level troubleshooting)

For model-specific operating checks and troubleshooting steps, use the owner's manual.

Quick checks we recommend first (fast, no parts)

1. Confirm the door is fully closed and latched; then press START/RESUME if the cycle was interrupted.
2. Verify power: check the breaker or house fuse.
3. Make sure the water supply valve is turned on.
4. If it will not fill, press the overfill float down to be sure it moves freely.
5. If water remains, confirm the cycle is complete before assuming a drain failure.

Parts that commonly solve these problems on GU2455XTSS3

If basic checks do not fix the issue, these model-matched parts are frequent solutions:

Symptom	Common fix	Model-matched part
Not drying, long cycles, heater-related faults	Restore heating performance	Dishwasher heating element W10518394
Dead dishwasher or intermittent power	Replace blown protection device	Fuse W10258275
Not filling or fills slowly	Restore water flow into the tub	Dishwasher water inlet valve WPW10158389
Leaks at the door	Replace worn sealing surface	Dishwasher door seal W10542314
Not draining or slow drain	Clear/replace drain path	Dishwasher drain hose 8269144A

Why it matters

Cleaning and draining issues usually get worse over time; they can lead to odor, redeposited soil, and repeated cycle interruptions. Catching a restriction early can prevent strain on the circulation system and heater circuit.

Last updated: February 2026

To reset (clear) the controls on your Whirlpool GU2455XTSS3 dishwasher, press CANCEL/DRAIN to stop the cycle and clear the indicators; then select a new cycle and press START/RESUME. This matches the control-clear steps shown in the owner's manual.

Reset (control clear) steps

• Press CANCEL/DRAIN once.
• Let the dishwasher run the drain sequence if needed (about 2 minutes).
• If you want to stop the drain immediately, press CANCEL/DRAIN again.
• Select a new cycle and any options.
• Check that the detergent dispenser is filled correctly for the new cycle.
• Press START/RESUME (close the door to start).

If you are trying to “reboot” a frozen control panel

If the keypad is unresponsive, a power reset often restores normal operation.

• Turn off the dishwasher at the house breaker.
• Wait 1 minute.
• Restore power.
• Press CANCEL/DRAIN to clear any stuck cycle.
• Re-select a cycle and press START/RESUME.

Quick reference: what to use and when

What you want to do	Button(s) to use	What happens
Stop a running cycle and clear selections	CANCEL/DRAIN	Drains if needed and clears indicators
Stop the drain early	CANCEL/DRAIN again	Drain stops immediately
Start the selected cycle	START/RESUME	Cycle begins when door is closed

Why it matters

Clearing the cycle before starting a new one prevents leftover water and stuck options from carrying over, which helps wash performance and avoids drain-related problems.

Last updated: February 2026