Maytag MDC5100AWB dishwasher Parts

On the Maytag MDC5100AWB dishwasher, the filter is located in the bottom of the tub under the lower spray arm area. You typically access it from inside the dishwasher by removing the lower rack, then unlocking and lifting out the filter pieces.

How to find and remove the filter

1. Turn off the dishwasher and open the door.
2. Pull out the lower rack for clear access.
3. Look at the tub floor near the center, around the lower spray arm base.
4. Rotate the upper filter section about a quarter turn counterclockwise (typical design), then lift it out.
5. Lift out the lower filter screen (it usually sits in a circular opening).

Quick checklist before you start

• Let the unit cool if it just ran a heated cycle
• Remove large food debris by hand first
• Use a soft brush and warm water for cleaning
• Reseat the filter fully so it locks in place
• Run a short rinse cycle after reinstalling to confirm normal flow

What to do if dishes are still gritty after cleaning

A dirty or mis-seated filter can reduce wash pressure and recirculate debris. If cleaning the filter does not help, check these common causes:

• Clogged or damaged lower spray arm (holes blocked by seeds, glass, labels)
• Overloading the racks (spray cannot reach surfaces)
• Low water fill level (float stuck or water level switch issue)
• Heavy soil buildup in the pump housing area
• Detergent cup not opening consistently

Symptom	Most likely area to check	What you can do next
Grit on glasses	Filter and spray arm	Clean filter, clear spray arm jets
Poor cleaning on bottom rack	Lower spray arm	Inspect/replace dishwasher spray arm assembly, lower WP99001788
Unit seems to underfill	Float and water level control	Make sure float WP99002363 moves freely

Why it matters

The filter protects the pump and helps maintain strong spray circulation. Keeping it clean helps prevent poor cleaning, drain issues, and premature wear on wash components.

For step-by-step troubleshooting if cleaning does not solve it, use our dishwasher not cleaning dishes video.

Last updated: February 2026

Yes. On the Maytag MDC5100AWB dishwasher, we can usually replace many common wear parts ourselves (like a door seal, lower spray arm, or float) with basic hand tools and careful shutoff of power and water; electrical diagnostics and leak-related repairs take more care.

Good DIY candidates on MDC5100AWB

These repairs are typically straightforward because they involve accessible parts and minimal disassembly:

• Replace a leaking or worn door gasket: dishwasher door seal WP902894
• Fix poor wash coverage from a damaged or clogged arm: dishwasher spray arm assembly, lower WP99001788
• Address overfilling or filling issues tied to the float system: float WP99002363
• Restore draining and filtration performance: dishwasher pump housing filter WP99001791
• Replace a broken latch/handle that prevents starting: latch handle WP99002085

Repairs that are usually better for experienced DIYers

These can involve wiring, tight spaces, or water connections where a small mistake causes a leak:

• Water level and fill control components (switches, wiring)
• Hose and coupler connections under the tub
• Any repair that requires pulling the dishwasher out of the cabinet

Quick safety checklist (do this first)

• Turn off power at the breaker (dishwashers are hard-wired on many installs).
• Shut off the water supply valve under the sink.
• Protect the floor with towels; keep a shallow pan ready for residual water.
• Take photos before disconnecting wires or hoses.
• Run a short test cycle and check for leaks after reassembly.

DIY difficulty guide

Repair type	Typical tools	Typical risk
Door seal, float, spray arm	Screwdriver, pliers	Low
Filter and internal wash parts	Screwdriver	Medium (fit, leaks)
Hoses, switches, wiring	Nut driver, multimeter	Higher (leaks, electrical)

Why it matters

Replacing the right part yourself can restore cleaning, stop leaks, and prevent repeat failures. For example, a worn door seal can cause water on the floor, and a damaged spray arm can leave dishes dirty even when the dishwasher runs normally.

For step-by-step troubleshooting before you buy parts, we recommend: dishwasher leaks video.

Last updated: February 2026

Most Maytag dishwashers, including model MDC5100AWB, typically last 10 to 12 years with normal household use. Good cleaning habits and fixing small issues early (leaks, poor draining, weak spray) often help a dishwasher reach the high end of that range.

What affects dishwasher lifespan the most

• Water quality (hard water speeds up mineral buildup)
• How often you run it (daily use wears moving parts faster)
• Filter and spray arm cleanliness
• Door seal condition and leak prevention
• Proper draining (standing water strains the pump)

Maintenance that helps you get the full 10 to 12 years

• Clean the pump area and keep debris out of the wash system; a clogged filter can reduce cleaning and overwork the motor (see dishwasher pump housing filter WP99001791).
• Keep the lower spray arm holes clear so water pressure stays strong (see dishwasher spray arm assembly, lower WP99001788).
• Wipe the door sealing surfaces and replace a worn gasket to prevent slow leaks (see dishwasher door seal WP902894).
• Use the right detergent amount and run hot water at the sink before starting a cycle.
• If you have hard water, use rinse aid and periodically clean mineral buildup.

Quick “repair vs. replace” guide

If your Maytag dishwasher is…	Usually worth repairing	Usually time to consider replacing
Under ~8 years old	Yes, for most leaks, draining, and wash issues	Rarely
10 to 12 years old	Yes, if it is a simple seal, spray, or rack issue	If multiple major symptoms show up
Over ~12 years old	Sometimes, if the fix is minor and low-cost	Often, especially for repeated pump or electrical problems

Why it matters

Knowing the typical lifespan helps you plan: a small part replacement (like a seal, filter, or spray arm) can extend service life and prevent water damage, while repeated failures near the 12-year mark can signal it is time to reassess.

Last updated: February 2026

For the Maytag MDC5100AWB dishwasher, the most common issues we see are poor cleaning and drain problems (water left in the tub). These are often caused by loading habits, clogged spray arm holes, or a dirty pump-area filter, and they are usually fixable with basic cleaning and a quick inspection.

Quick checks that fix the majority of complaints

• Confirm the spray arms spin freely and are not blocked by tall pans.
• Clear debris from the sump area and check the pump-area filter for buildup.
• Run hot water at the sink for 30 to 60 seconds before starting the cycle.
• Use fresh detergent and avoid overfilling the dispenser.
• Verify the drain hose is not kinked and the sink/disposer connection is clear.

Common symptoms and the most likely causes

Symptom	Most common cause	What to check first
Dishes still dirty	Spray arm holes clogged, poor loading	Clean/flush spray arm holes; re-load for water access
Water left in bottom	Partial drain restriction	Drain hose routing, sink/disposer inlet, sump debris
Leaks at the door	Worn or dirty door sealing surfaces	Clean the sealing surface; inspect the door seal
Detergent not dispensing	Dispenser actuator issue	Check dispenser door movement and latch action

Parts that commonly solve cleaning, draining, and leaking problems

If cleaning and hose checks do not solve it, these model-compatible parts are frequent fixes:

• Dishwasher spray arm assembly, lower WP99001788 (clogged or damaged spray arm reduces wash pressure)
• Dishwasher pump housing filter WP99001791 (restricted flow can hurt cleaning and contribute to drain issues)
• Dishwasher door seal WP902894 (a worn seal is a common source of door-edge leaks)

Helpful DIY guidance

• Use our dishwasher not cleaning dishes video to walk through spray arm, filter, and loading checks.
• If the issue is standing water, follow the steps in our dishwasher not draining video.

Why it matters

Poor cleaning and incomplete draining usually get worse over time; food debris recirculates, wash pressure drops, and odors can develop. Keeping the spray system and filter area clean helps the Maytag MDC5100AWB run quieter, wash better, and reduce leak risk.

Last updated: February 2026

A Maytag dishwasher like model MDC5100AWB is built around a fill system, wash (circulation) system, drain system, and door sealing and racking components. Knowing the main parts helps us pinpoint issues like leaks, poor cleaning, or not filling, and choose the right replacement part.

Main dishwasher parts (what they do)

• Water inlet and fill control: brings water into the tub and stops at the correct level (often managed by a float and switch)
• Circulation pump and motor: pushes wash water through the spray arms for cleaning
• Spray arms: spin and distribute water to the racks (upper and lower)
• Filtration system: traps food soil so it does not redeposit on dishes
• Drain path: moves dirty water out at the end of wash and rinse portions
• Door system: latch, handle, and seals that keep water in and allow safe operation
• Racks and rack hardware: holds dishes in place and lets racks roll smoothly

Common MDC5100AWB parts you may replace

If you are troubleshooting a specific symptom, these model-matched parts are common starting points:

• Leaks at the door: dishwasher door seal WP902894
• Overfilling or odd fill behavior: float WP99002363 and water switch (white) WP99002560
• Poor cleaning on the bottom rack: dishwasher spray arm assembly, lower WP99001788
• Food debris issues: dishwasher pump housing filter WP99001791
• Rack problems: rack W10139223 and dishwasher dishrack slide rail stop, upper WP99002135

Quick symptom-to-part checklist

Symptom	Most likely area	Example model-matched part
Water on floor near door	Door sealing	WP902894
Dishes dirty on lower rack	Spray and circulation	WP99001788
Dishwasher seems to overfill	Fill level protection	WP99002363 / WP99002560
Grit or debris left behind	Filtration	WP99001791

Why it matters

Dishwashers are systems; a “not cleaning” complaint can be spray arm, filter, fill level, or loading related. Identifying the correct subsystem first prevents replacing good parts and gets your Maytag dishwasher back to normal performance faster.

Last updated: February 2026