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Not cleaning dishes properly is the 3rd most common symptom for Maytag MDB7749SAM0. It takes 15-30 minutes to fix on average. The instructions below from DIYers like you make the repair simple and easy. Many parts also have a video showing step-by-step how to fix the "Not cleaning dishes properly" problem for Maytag MDB7749SAM0. So, if your MDB7749SAM0 dishwasher dishes aren't getting clean, poor cleaning or won't clean dishes, the following info will help you identify the problem.
Parts for Maytag MDB7749SAM0
The Dishwasher Food Chopper is an OEM part for Whirlpool dishwashers. It's designed to break down food particles that are washed off dishes during the cleaning cycle. This prevents large debris from clogging the dishwasher's drain and ensures that water remains clean throughout the cycle, enhancing the machine's cleaning efficiency.
A malfunctioning or worn-out food chopper can lead to several problems, such as poor cleaning results due to food particles being redeposited on dishes, or even clogs that can strain the dishwasher's pump and filters.
Symptoms of a bad Dishwasher Food Chopper include:
This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.
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The Spinner Kit is an OEM part for Whirlpool dishwashers. The spinners are responsible for spraying water to effectively clean and rinse dishes. Over time, spinners may wear out or break, impacting performance. If your dishwasher isn't cleaning properly, inspect the spinners first
Causes of a bad Spinner Kit can include mineral buildup from hard water, which may block the water jets, or physical damage to the spinner arms that can occur from loading large or improperly placed dishes.
Symptoms of a failing Spinner Kit include:
This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.
No longer includes course threaded sleeve. When replacing upgrade to new motor. For new motor, order from parts list by model number.
This part is discontinued by the manufacturer and is no longer available for purchase.
The Spray Arm Seal is an OEM replacement part for Whirlpool dishwashers. This seal is responsible for creating a watertight seal between the spray arm and the water supply tube, ensuring that water is directed through the spray arm without leaking.
Causes of a bad spray arm seal include wear and tear over time, exposure to high temperatures or harsh detergents, or physical damage from mishandling or debris.
Symptoms of a bad spray arm seal:
This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore dishwasher models.
The Check Valve is an OEM part for Whirlpool dishwashers. This small but crucial component prevents backflow of water into the dishwasher, ensuring that dirty water is properly drained and does not contaminate clean dishes. It plays a vital role in maintaining the efficiency and hygiene of the dishwasher by directing water flow correctly during the wash and drain cycles.
Causes of a bad check valve can include blockages from food particles, mineral deposits from hard water, or wear and tear over time. These issues can impede the valve's function, leading to ineffective drainage and potential backflow problems.
Symptoms of a bad check valve include:
The Spray Arm Bearing is an OEM replacement part for Whirlpool dishwashers. This supports the rotation of the spray arm, ensuring it can freely move and distribute water evenly throughout the dishwasher during a wash cycle.
Causes of damage to the spray arm bearing can include mineral buildup from hard water, wear and tear from regular use, or damage from debris that has become lodged in the spray arm.
Symptoms of a bad Spray Arm Bearing include:
This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.
The Circulation Motor is an OEM part for Whirlpool dishwashers. It is responsible for pumping water through the spray arms to ensure thorough cleaning of dishes during the wash cycle. This motor helps maintain consistent water pressure and flow, crucial for effective dishwashing performance.
Over time, the circulation motor can fail due to factors such as motor wear, electrical issues, or blockages that cause the motor to overheat or become damaged. Regular use and the buildup of debris or hard water deposits can also contribute to motor failure.
Symptoms of a bad circulation motor include:
Usually ships within 4 - 14 days
The Water Manifold Probe is an OEM replacement part for Whirlpool dishwashers. This probe monitors water levels during dishwasher cycles by sensing when the water valve opens and closes during different stages of cleaning and rinsing. It plays an integral role in ensuring the precise delivery of water at optimal temperatures and pressures.
Symptoms of a bad water manifold probe include:
Over time, probes can corrode, crack, or malfunction due to repetitive heating and cooling cycles.
This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.
The Pump and Motor Assembly is an OEM part for Whirlpool dishwashers. This part is responsible for circulating water during the wash cycle and draining water at the end of the cycle.
Causes of a bad assembly can include blockages from debris, electrical failures, or wear and tear from regular use.
Symptoms of a bad Pump and Motor Assembly include:
The Rubber Washer is an OEM part for Whirlpool dishwashers. This washer plays a role in ensuring a leak-proof seal at various connection points within the dishwasher, such as at the water inlet valve or hose connections. Its primary function is to prevent water from leaking out of the dishwasher during operation, thereby ensuring efficient and safe use of the appliance.
Over time, rubber washers can deteriorate due to the constant exposure to water and chemicals found in dishwasher detergents.
Symptoms of a bad Rubber Washer in a dishwasher include:
The Turbidity Sensor is an OEM part for Whirlpool dishwashers. It detects the level of particles in the water during the wash cycle, allowing the dishwasher to adjust the cycle duration and water usage for optimal cleaning performance. This sensor ensures that dishes are thoroughly cleaned by monitoring water clarity.
You should replace the turbidity sensor if it becomes faulty or damaged. Causes of a bad turbidity sensor can include regular wear and tear, exposure to hard water minerals, or electrical malfunctions. A malfunctioning sensor can lead to inefficient cleaning cycles and poor wash results.
Symptoms of a bad turbidity sensor include:
The Filter Assembly is an OEM part for Whirlpool dishwashers. This component is responsible for trapping food particles and debris, preventing them from recirculating during the wash cycle and ensuring that dishes come out clean.
Causes of a bad filter assembly can include accumulated debris, regular wear from repeated use, or damage from harsh cleaning agents. A compromised filter can reduce the dishwasher’s cleaning performance and lead to buildup inside the machine.
Symptoms of a bad filter assembly include:
The Middle spray arm is an OEM replacement part for Whirlpool dishwashers. Located inside the dishwasher tub, this middle spray arm helps deliver water to dishes on all levels for optimal cleaning.
Causes of a bad middle spray arm can include clogged or blocked spray holes, damaged or missing spray vanes or jets, or mechanical issues preventing rotation.
Symptoms of a bad middle spray arm include:
The Lower Spray Arm Hub is an OEM replacement part for Whirlpool built-in dishwashers. It is a central component that secures the rotating lower wash arm during the wash cycle.
Causes of a bad lower spray arm hub involve general wear from years of repeated wash cycles. Mineral buildup accumulating inside may also deteriorate connecting surfaces over time.
Symptoms of a compromised hub include:
Compatible brands also include KitchenAid, Jenn-Air, and some Kenmore built-in dishwasher models.
Note: Also Order Spray Arm Seal: WP8268340
The Heating Element is an OEM part for Whirlpool dishwashers. This element is for heating the water to the required temperature and for the drying cycle, allowing your dishes come out clean and dry. It's positioned at the bottom of the dishwasher tub, where it heats the water and aids in the drying process by evaporating moisture from the dishes.
Causes of a bad heating element include mineral buildup from hard water, which can insulate the element and reduce its efficiency, or electrical issues such as a burnt-out coil.
Symptoms of a bad heating element: