Maytag DWU6602AAB dishwasher Parts

The most common Maytag dishwasher problem we see (including on model DWU6602AAB) is poor cleaning performance, usually caused by restricted water flow from a clogged filter, blocked spray arm, or low fill. Leaks and draining issues are also frequent and often trace back to seals, the inlet valve, or drain path restrictions.

Quick checks we recommend first

• Clean the sump area and inspect the filter WP99001791 for debris.
• Remove and rinse the dishwasher spray arm WP99001788; clear clogged jet holes.
• Confirm the dishwasher fills to a normal level; a weak fill points to the dishwasher water inlet valve WP99001359 or household supply.
• Check the door perimeter for gaps, tears, or flattening on the dishwasher door seal WP902894.
• Verify the float moves freely; a stuck float can stop filling (see float WP99002363).

Most common symptoms and what they usually mean

Symptom	Most likely cause	Parts to inspect on DWU6602AAB
Dishes still dirty	Clogged filter or spray arm, low water fill	Filter WP99001791, dishwasher spray arm WP99001788, dishwasher water inlet valve WP99001359
Water on floor	Door seal issue, door not closing square, overfill	Dishwasher door seal WP902894, float WP99002363
Won’t drain	Drain restriction, pump issue, filter blockage	Filter WP99001791

Why it matters

A dishwasher that is not cleaning well is usually telling you water is not circulating correctly. Fixing the restriction early helps prevent repeat wash cycles, detergent residue, and premature wear on circulation components.

Helpful troubleshooting resources

If your Maytag dishwasher is showing a fault or flashing pattern, use Maytag microclean he dishwasher error codes to match the symptom to a likely cause and next step.

Last updated: February 2026

A Maytag dishwasher like model DWU6602AAB is built around a fill system, wash (circulation) system, drain system, and door components that keep water inside while the spray arms clean. Most “core parts” fall into water-in, water-moving, filtering, and door-sealing categories.

Main dishwasher parts (what they do)

• Water inlet valve: lets water into the tub at the start of a cycle.
• Float and float switch: helps prevent overfilling by signaling when the water level is high.
• Circulation pump and impeller: moves wash water through the spray arms.
• Spray arms: spin and spray water to clean dishes.
• Filter system: traps food soil to protect the pump and improve cleaning.
• Racks and rack stops: hold dishes and keep racks from sliding out.
• Door seal and latch: keeps the door closed and prevents leaks.

Common DWU6602AAB parts customers replace

These are examples of real, model-matched parts that often come up during troubleshooting:

• Dishwasher water inlet valve WP99001359
• Dishwasher spray arm WP99001788
• Filter WP99001791
• Float WP99002363
• Dishwasher door seal WP902894

Quick “symptom to part” guide

Symptom	Most likely area	Example DWU6602AAB part
Not filling or fills slowly	Fill system	Water inlet valve
Poor cleaning	Wash and filtration	Spray arm, filter, circulation impeller
Leaking at the door	Door system	Door seal
Overfilling	Overfill protection	Float

Why it matters

Knowing which system a part belongs to (fill, wash, drain, or door) speeds up diagnosis and helps you order the right Maytag dishwasher parts the first time.

For step-by-step troubleshooting, we use guides like dishwasher not cleaning dishes video to match symptoms to the right checks.

Last updated: February 2026

Maytag dishwashers are typically covered by a 10-year limited parts warranty on certain components, with shorter coverage periods for other parts and labor depending on the specific warranty terms for your unit. For a Maytag DWU6602AAB, confirm coverage by checking your warranty paperwork and the model and serial tag.

What “10-year limited parts warranty” usually means

A limited parts warranty generally covers specific parts only (not every component), and it often does not include labor after the initial full-warranty period.

Common warranty details to verify:

• Which components are included in the 10-year parts coverage
• Whether labor is covered, and for how long
• Whether you must use authorized service
• Proof-of-purchase requirements
• Transferability to a new owner

Quick checks you can do on your DWU6602AAB

Use these steps to match your paperwork to the dishwasher you own:

• Locate the model and serial label (often on the tub frame near the door)
• Confirm the model number reads DWU6602AAB
• Compare the serial number to your receipt or registration
• Keep a photo of the label for service calls

Parts that are commonly replaced (not a warranty lookup)

If you are troubleshooting a leak, door closing issue, or fill problem, these model-matched parts are common service items:

Symptom	Common related part for DWU6602AAB	What it affects
Water leaking at the door	Dishwasher door seal WP902894	Door sealing surface
Not filling or overfilling	Dishwasher water inlet valve WP99001359	Water entering the tub
Poor wash coverage	Dishwasher spray arm WP99001788	Spray pattern and pressure
Not draining well	Filter WP99001791	Debris capture and flow

Why it matters

Knowing the exact warranty coverage helps you decide whether to schedule service, order a replacement part, or address a maintenance issue first. It also prevents paying out of pocket for a part that may be covered.

Last updated: February 2026

For a Maytag dishwasher, we typically find the model number on the rating label inside the door area, most often along the tub frame near the top or side. Once you locate it, match it exactly (for example, DWU6602AAB) when ordering parts.

Where to look on the dishwasher

Check these common Maytag dishwasher label locations:

• Along the inner edge of the door (left or right side)
• On the tub frame just inside the door opening
• Near the top of the tub opening, above the door latch area
• On the side wall of the tub, visible when the door is open
• Occasionally behind the toe panel area (lower front), if the label is missing from the tub

What the model number looks like

The model number is usually a mix of letters and numbers and is printed on a sticker or metal tag.

What you might see	What it means	What to do
Model	The full model identifier	Use this to find the correct parts list
Serial	The unit’s unique production number	Helpful for service history, not required for most parts
Brand	Maytag	Confirms manufacturer

Tips to avoid ordering the wrong part

• Copy the model number exactly, including all letters and suffixes
• Take a clear photo of the label before you start shopping
• If the label is worn, look for faint stamped characters or a second label nearby
• Use the model number to confirm fit before buying items like a door seal, rack, or inlet valve

If you are working on a leak at the door, the model number helps us match the correct seal for your exact configuration, such as the dishwasher door seal WP902894.

Why it matters

Maytag dishwashers can look similar across multiple series, but parts like the door seal, latch handle, spray arm, and water inlet valve can vary by model revision. Using the exact model number prevents fit and performance problems.

Last updated: February 2026