Maytag MDBTT79AWB dishwasher Parts

Yes. Your Maytag MDBTT79AWB dishwasher uses a filter system that should be checked and cleaned when you notice poor cleaning, gritty residue, or slow draining. Cleaning the filter helps restore water flow through the pump and improves wash performance; follow the steps in the MDBTT79AWB owner's manual.

How to clean the dishwasher filter

1. Turn off power at the breaker (recommended) and open the door.
2. Remove the lower rack for access.
3. Unlock the upper filter assembly by turning it about 1/4 turn counterclockwise.
4. Lift out the upper filter assembly.
5. Grasp the lower filter in the circular opening, lift slightly, and remove.
6. Rinse filters under warm running water; use a soft brush for stuck-on debris.
7. Reinstall the lower filter, then the upper filter; lock the upper filter by turning clockwise.

What to check while you are in there

• Clear food debris, labels, or glass fragments from the sump area.
• Spin the lower spray arm by hand to confirm it moves freely.
• Make sure dishes are not blocking the wash arms during loading.
• If you see standing water or frequent drain issues, inspect the drain path and consider replacing a damaged hose such as the dishwasher drain hose WP99002652.
• If cleaning results are still weak, a worn circulation component such as the dishwasher pump impeller WP99002659 can reduce spray pressure.

Quick guide: when to clean vs. when to replace

Symptom	Most likely action	What it helps
Gritty residue on dishes	Clean filter	Restores circulation flow
Musty odor	Clean filter and run a cleaning cycle	Reduces trapped soil buildup
Slow drain or water left in tub	Clean filter, then check drain hose	Improves draining
Poor cleaning after filter is clean	Check spray arms and circulation parts	Restores spray pressure

Why it matters

A partially clogged filter restricts water movement through the wash system. That can leave soil on dishes, reduce spray-arm performance, and contribute to odors. Keeping the filter clean is one of the fastest maintenance steps to improve dishwasher cleaning.

Last updated: February 2026

Maytag dishwasher warranty coverage depends on the exact Maytag dishwasher model and the warranty terms that came with it. For the Maytag MDBTT79AWB dishwasher, the warranty section in the MDBTT79AWB owner's manual is the right place to confirm the length, what parts are covered, and what situations can void coverage.

What to check in the warranty terms

Look for these details so you know exactly what is covered and for how long:

• Warranty length (full warranty period vs. limited parts coverage)
• What is covered (parts only vs. parts and labor)
• What is not covered (installation issues, misuse, normal wear)
• Proof of purchase requirements
• How to request service (authorized servicer process)

Typical Maytag dishwasher warranty structure (what you usually see)

Many Maytag dishwashers include a standard limited warranty plus additional limited coverage on certain components. Use this as a quick comparison, then confirm the exact wording for MDBTT79AWB in the manual.

Coverage type	What it usually includes	What you should verify for MDBTT79AWB
Limited warranty	Defects in materials/workmanship	Time period and whether labor is included
Limited parts warranty	Specific components covered longer	Which parts qualify and any exclusions

Why it matters

Warranty terms affect whether a repair is covered and how you should proceed. For example, if a dishwasher won’t heat or dry, you may be looking at components like the heater element W10283681, but warranty coverage depends on the exact warranty period and exclusions.

Quick tips before scheduling warranty service

• Have your model and serial number ready (MDBTT79AWB)
• Keep your sales receipt or other proof of purchase
• Document symptoms (leaking, not draining, not heating, error lights)
• Avoid DIY disassembly if you plan to pursue warranty service first

Last updated: February 2026

The most common Maytag dishwasher problems are draining issues, leaks, and poor cleaning performance. On Maytag model MDBTT79AWB, these symptoms usually trace back to a clogged filter area, a restricted drain path, or a wash system issue; our MDBTT79AWB owner's manual troubleshooting section is the best place to match symptoms to checks.

Most common symptoms and what to check first

• Not draining: check the drain hose routing for kinks and clogs; confirm the sink/disposer connection is clear.
• Leaking: verify the dishwasher is level and not oversudsing (use only dishwasher detergent).
• Not cleaning well: clean the filter area and check spray arm holes for blockage.
• Not drying: confirm hot water supply (incoming water should be about 120°F / 49°C).
• Won’t start or stops mid-cycle: check door closure and latch engagement.

Parts that commonly relate to these problems

If your symptom points to a failed component (not just a clog or loading issue), these model-matched parts are common suspects:

Symptom	Common cause	Example model-matched part
Won’t run, won’t latch	Door not latching securely	Latch WPW10275768
Poor drying, long heat times	Heater not heating water	Heater element W10283681
Not filling or fills slowly	Water supply restriction or valve issue	Dishwasher water inlet valve W11082871
Not draining (after clearing hose)	Drain path restriction or hose issue	Dishwasher drain hose WP99002652

Why it matters

Drain, leak, and wash-performance problems can quickly lead to odors, standing water, and repeat cycle failures. Starting with the simple checks (leveling, correct detergent, clear drain path, proper water temperature) prevents unnecessary part replacement.

Helpful model-specific troubleshooting resources

• Use Maytag microclean he dishwasher error codes if your control is flashing an error or beeping.

Last updated: February 2026

A Maytag dishwasher like model MDBTT79AWB is built around a fill system, wash system, filtration, heating, and door hardware. The key parts work together to bring water in, spray it through the wash arms, filter soil, heat for cleaning and drying, then drain the tub.

Main dishwasher parts (what they do)

• Water inlet valve: opens to let household water into the dishwasher (common replacement: dishwasher water inlet valve W11082871).
• Circulation system: pump and impeller move water to the spray arms (example: dishwasher pump impeller WP99002659).
• Spray arms and feed components: distribute water over dishes (upper/lower arms, manifolds).
• Filtration and soil handling: traps and routes food soil so it does not redeposit (example: filter flow plate WPW10192799).
• Heating system: boosts wash temperature and helps drying (example: heater element W10283681).
• Drain system: pushes used water out through the drain hose (example: dishwasher drain hose WP99002652).
• Door and latch hardware: keeps the door sealed and the cycle running (examples: latch WPW10275768, latch handle (off-white) WPW10130695).

Quick “system” view

System	What you notice when it fails	Example part for MDBTT79AWB
Fill	No/low water, poor wash	Water inlet valve
Wash	Dishes dirty, weak spray	Pump impeller, wash arm components
Heat/dry	Water not hot, poor drying	Heating element
Drain	Standing water in tub	Drain hose
Door/latch	Won’t start, stops mid-cycle	Latch, latch handle

Why it matters

Knowing which system is involved helps you choose the right repair path. For example, “not drying” often points to the heating system, while “not draining” points to the drain path and hose routing.

Where to confirm part locations for your exact build

Use the exploded views and part lists in the MDBTT79AWB owner's manual to match the symptom to the correct assembly before ordering.

Last updated: February 2026