Maytag MDB7749SAM1 undercounter dishwasher Parts

Yes. Your Maytag MDB7749SAM1 undercounter dishwasher uses a filter area in the bottom of the tub that should be checked and cleaned regularly to prevent poor cleaning, odors, and drain problems. We recommend inspecting it about once a month, or sooner if you see food debris left behind.

Where the filter is and what it looks like

On most Maytag dishwashers like MDB7749SAM1, the filter is at the bottom of the tub under the lower spray arm, typically a twist-lock cylindrical filter with a flat mesh screen.

How to clean the dishwasher filter

• Turn off power at the breaker and let the unit cool.
• Pull out the lower rack.
• Remove the lower spray arm if it blocks access.
• Twist the cylindrical filter to unlock, then lift it out.
• Rinse the filter and screen under hot running water.
• Use a soft brush to remove grease and stuck-on debris; avoid harsh abrasives.
• Reinstall the filter fully seated and locked, then reinstall the spray arm and rack.

If you still have debris or draining issues

A dirty filter can mimic a drain problem. If water remains in the bottom after cleaning, check these common causes:

Symptom	Most likely cause	What to check next
Standing water after cycle	Clog in drain path	Air gap or garbage disposal inlet, sink drain, drain hose routing
Humming but not draining	Weak or jammed drain pump	Inspect pump area for debris; consider replacement
Slow drain	Kinked or restricted hose	Look for pinches, sharp bends, or buildup

If you suspect a failed pump or restricted hose, the parts most often involved are the dishwasher drain pump WPW10348269 and the dishwasher drain hose 8269144A.

Why it matters

A clean filter keeps wash water circulating properly, helps the turbidity sensor read water clarity more accurately, and reduces strain on the drain pump and sump system. That translates to better cleaning and fewer mid-cycle performance issues.

For model-specific diagrams and removal details, follow the steps in the MDB7749SAM1 owner's manual.

Last updated: February 2026

The most common Maytag dishwasher issue we see is poor cleaning, usually caused by restricted water flow (clogged filter or spray arms), incorrect loading, or low water temperature. On the Maytag MDB7749SAM1, regular filter checks and verifying proper fill help prevent repeat problems; see the MDB7749SAM1 installation guide.

Most common symptoms and what they usually mean

• Dishes still dirty or gritty: filter or spray arms restricted; overloading blocks spray
• Cloudy glassware: too much detergent, hard water, or poor rinse aid use
• Food left in the bottom: drain path restricted; drain hose routing issue
• Won’t start: door not fully latched, power issue, or cycle not set correctly
• Stops mid-cycle: door opened, power interruption, or control sensing a fill/drain problem

Quick checks we recommend first (fast, no parts)

1. Confirm the door is fully closed and latched.
2. Check the breaker or house fuse.
3. Make sure the cycle is selected correctly and started.
4. Verify the water supply valve is turned on.
5. Run a short cycle and, after about 2 minutes, open the door and confirm there is water in the bottom of the tub.

When it’s likely a part problem

If the basics check out, these parts commonly relate to the symptoms:

Symptom	Common cause	Part to consider (if applicable)
Not draining, water left in tub	Failed pump or restriction	Dishwasher drain pump WPW10348269, dishwasher drain hose 8269144A
Poor wash pressure	Circulation issue in sump/motor	Dishwasher sump and motor assembly WPW10780877
Not filling or fills slowly	Inlet valve problem	Dishwasher water inlet valve W11175771

Why it matters

Poor cleaning is often the first sign of a developing fill, wash, or drain restriction. Catching it early helps prevent odors, standing water, and repeat cycle failures.

Last updated: February 2026

On a Maytag MDB7749SAM1 dishwasher, the F6 E1 code points to a water fill or water level detection problem. The dishwasher is not sensing the correct water level during fill, so it may stop mid-cycle, drain unexpectedly, or fail to wash properly.

What to check first (fast, no parts)

• Make sure the water supply valve under the sink is fully open.
• Confirm the inlet hose is not kinked or crushed behind the dishwasher.
• Verify the home hot water is available; run the kitchen faucet until hot.
• Cancel the cycle and restart; listen for a strong fill sound in the first minute.
• If the unit recently moved or was installed, re-check the water and drain connections per the installation guide.

Common causes and the parts that usually fix it

F6 E1 is most often tied to restricted fill, a weak inlet valve, or a sensing issue caused by poor circulation or draining.

Symptom you notice	Most likely area	Part that’s commonly involved (if replacement is needed)
Little or no water enters	Water supply / fill	Dishwasher water inlet valve W11175771
Water enters but washing is weak	Wash system / circulation	Dishwasher sump and motor assembly WPW10780877
Unit drains oddly or won’t clear water	Drain path	Dishwasher drain pump WPW10348269 or dishwasher drain hose 8269144A
Code appears with cloudy water or poor sensing	Soil sensing	Dishwasher turbidity sensor WPW10705575

Why it matters

When the dishwasher cannot confirm the correct water level, it protects itself by limiting operation. That prevents heater damage, reduces cleaning performance, and can leave detergent undissolved.

Good installation-related checks (especially after a new install)

From the install requirements for this style of Maytag dishwasher, we focus on basics that can affect fill and drain performance:

• Confirm the drain hose connection is secure and clamped.
• Make sure routing does not pinch hoses or wiring when the unit is pushed back.
• Verify the dishwasher is centered and level so the door closes correctly.

Last updated: February 2026

A Maytag dishwasher like model MDB7749SAM1 is built around a water-fill system, wash (circulation) system, heating and drying system, and a drain system, plus door and rack hardware. Knowing the main components helps you pinpoint leaks, poor cleaning, no-heat, or no-drain symptoms faster.

Main dishwasher parts (what they do)

• Water inlet valve: lets water into the tub at the start of a cycle (common “won’t fill” culprit).
• Sump and motor assembly: the heart of washing; moves water through the spray system.
• Heater: boosts water temperature and supports drying.
• Drain pump and drain hose: pushes used water out to the disposer or drain line.
• Filtration and sensing: helps keep wash water cleaner and can adjust performance.
• Door system: latch, seals, and balance parts keep the door closed and watertight.
• Racks and rack hardware: dishrack, wheels, and slide rails for loading and smooth movement.

Common parts you may replace on MDB7749SAM1

Symptom	Most likely part area	Example part for this model
Not draining, standing water	Drain system	Dishwasher drain pump WPW10348269
Not filling or fills slowly	Water supply	Dishwasher water inlet valve W11175771
Poor drying, water not heating	Heating circuit	Dishwasher heater W10703867
Door leaks at bottom	Door sealing	Dishwasher door seal, lower WPW10497235
Rack won’t roll smoothly	Rack hardware	Whirlpool dishwasher dishrack wheel W10195416V

Why it matters

Dishwasher problems usually trace back to one system (fill, wash, heat, or drain). Identifying the system first prevents replacing the wrong part and helps you plan the right repair steps and tools.

Quick checks before ordering parts

• Confirm the dishwasher is getting water at the shutoff valve.
• Check the drain hose routing for kinks and proper height.
• Clean out visible debris in the sump area (after power is off).
• Verify the door closes firmly; a weak latch or seal can cause leaks.
• Use the wiring diagram and component locations in the MDB7749SAM1 installation guide when inspecting connections.

Last updated: February 2026