Mdb7449aww1 Parts

This overfill control float assembly sits in the dishwasher tub and rises with the water level. It works with the float switch to shut off the inlet valve, helping prevent overfilling and potential leaks.

• Rises with the water level to engage the float switch and stop water flow
• Helps protect against tub overfill and floor leaks during the fill cycle
• Replace if the float is missing, warped, stuck, or doesn't move freely
• Symptoms can include continuous filling/overfilling, water spilling from the door, or no fill if the float is stuck in the up position

• Disconnect power and turn off the water supply before servicing
• Remove the lower rack; lift the old float straight up from the tub opening
• Clear any debris from the float well so the new float moves freely
• After reassembly, start a fill to ensure the float rises and water shuts off

This hose clamp secures a hose connection to prevent leaks and keep your appliance running smoothly. It provides a tight, reliable hold on the hose fitting so water or air stays contained during operation.

• Tightens around a hose and fitting to maintain a secure seal
• Helps stop drips, seepage, or loose connections
• Common fix when you see moisture around a hose joint
• Useful if a clamp is rusted, stretched, or no longer holding tension

• Unplug power and shut off water (if applicable) before servicing
• Note clamp position/orientation before removal
• Use appropriate screwdriver or nut driver to tighten evenly
• Do not overtighten—ensure a snug, leak-free seal without damaging the hose

This replacement door handle restores a secure grip and normal door operation on compatible Whirlpool appliances. It provides a like-for-like fit and finish to replace a damaged, loose, or worn handle so doors open and close reliably. What it does:

• Replaces a broken, cracked, or missing door handle to restore normal use
• Provides a solid grip so the door opens and closes smoothly
• Matches the original mounting points for straightforward fit
• Helps eliminate rattling or loose-handle symptoms

• One replacement handle

• Intended to be installed with the original mounting screws and hardware; only included items ship
• Turn off and unplug the appliance or shut off power at the breaker before servicing electrical appliances
• Use moderate force when aligning the handle to avoid damaging trim or fasteners

This electronic control board kit is the appliance's central controller, coordinating inputs and powering key components. Replacing a failed board restores proper operation, responsive controls, and reliable cycle management. What it does:

• Manages timing and power to motors, valves, heaters, fans, and other loads
• Interprets sensor and user-interface signals to start, run, and end cycles correctly
• Common failure signs: dead or unresponsive controls, cycles that won't start/finish, repeated error codes, or intermittent operation
• Helps address issues caused by power surges or board damage

• 1 electronic control board (module)

• Disconnect electrical power to the appliance; turn off gas/water if applicable
• Use ESD protection and handle the board by its edges
• Photograph wiring; transfer connectors one at a time and match any jumpers/DIP-switch settings from the original board
• Restore power and perform any model-specific tests or programming per OEM instructions

This float palnut is a push-on retainer that secures the dishwasher's water-level float to its stem. Keeping the float anchored helps the overfill protection work properly, supporting correct fill levels and helping prevent leaks from overfilling. What it does:

• Holds the float in position so it can move freely with water level changes
• Helps the float reliably actuate the overfill/float switch
• Replace if cracked, loose, or missing
• Typical symptoms include a loose or wobbly float, the float popping off, erratic filling, overfilling, or leaks near the float area

• One float palnut

• Disconnect power and turn off water supply before servicing
• Remove the lower rack to access the float assembly
• Remove the old retainer; press the new palnut squarely onto the float stem until snug
• The float moves freely up and down before reassembling

Size: 1/4 inch hex head, 10-12 x 1/2 inch.

This dishwasher impeller assembly mounts on the circulation pump and pressurizes wash water for the spray arms. Replacing a worn or damaged impeller restores proper spray pressure, cleaning performance, and quieter operation.

• Spins with the circulation motor to pressurize wash water
• Drives flow to the spray arms for effective wash action
• Typical symptoms: weak or no spray, poor cleaning results, grinding or rattling from pump area
• Often fails from broken vanes or debris; inspect filters/chopper while open

• Disconnect power and water before servicing
• Access is typically from inside the tub: remove the lower spray arm, filter screens, and cover to reach the impeller
• Note the order of parts and transfer any reusable hardware; replace worn O-rings/seals as needed
• Do not overtighten plastic parts; verify the impeller spins freely before reassembly and testing

Attaches to the inner tub for the upper rack

Replace a missing or cracked rinse aid cap to stop leaks and restore proper dispensing. This dishwasher dispenser cap seals the rinse aid reservoir so dishes dry better and avoid spots by delivering rinse aid consistently.

• Seals the rinse aid reservoir to prevent leaks and evaporation
• Helps ensure correct rinse aid dosing during wash cycles
• Replaces worn, stripped, or missing caps that won't tighten
• Common symptoms: pooled rinse aid in the door or tub, visible cap damage, dishes left with spots due to no rinse aid

• For safety, disconnect power to the dishwasher before servicing
• Open the door and remove the old cap by turning counterclockwise
• Clean the dispenser opening; seat the new cap and turn clockwise until snug—do not overtighten
• Refill rinse aid, wipe up any spills, and run a short cycle to check for leaks

This is the longer of the two dispenser lid hinge pins. For the shorter lid hinge pin order WPY912679.

Includes vinyl rack repair touch up paint and tine tip covers. Color: Grey

12 Ft in length

This is the lower access panel for the appliance's base. It finishes the front opening and shields internal components, helping reduce noise and keep dust and debris away from the motor and wiring.

• Covers the lower service opening beneath the door to provide a clean, finished look
• Helps protect internal components from debris and accidental contact
• Can reduce vibration noise when properly secured
• Replace if the panel is bent, cracked, rusted, missing, or rattles/doesn't stay secured

• Disconnect power; also shut off the water supply
• Support the existing panel while removing mounting screws; retain hardware for reuse
• Position the new panel, align with mounting holes/slots, and reinstall screws—do not overtighten
• Confirm door clearance and that the panel sits flush without interference

This is the shorter of the two dispenser lid hinge pins. For the longer lid hinge pin order WP6-912678.

This power cord strain relief secures the cord where it passes through the appliance cabinet, protecting the jacket and preventing pull on internal connections. Replacing a cracked or missing connector restores a safe, stable cord entry. What it does:

• Secures the power cord at the cabinet entry to relieve strain on internal terminals or junction connections
• Provides a protective bushing to reduce abrasion of the cord jacket against cabinet edges
• Helps maintain proper routing and support for the incoming power cord
• Typical signs it's needed: loose or wobbly cord at entry, broken/missing connector, or visible chafing on the cord jacket

• 1 strain relief connector

• Disconnect power at the breaker or unplug the appliance before servicing
• Remove the access cover, release and remove the old strain relief, and route the cord through the new connector
• Seat the connector fully so it captures the cord's outer jacket—not the individual conductors
• After reassembly, verify the cord is secure and does not move at the entry point

This cover screw secures an appliance cover or access panel to the cabinet, protecting internal components and reducing vibration. Replace missing, stripped, or corroded screws to keep panels tight and the unit safe and quiet.

• Fastens a cover or access panel to the appliance chassis
• Maintains proper panel alignment and enclosure integrity
• Helps eliminate rattles or buzzing from loose panels
• Typical symptoms: loose/misaligned cover, missing screw, vibration noise

• Disconnect power; for gas/water appliances, shut off supplies before service
• Wear cut-resistant gloves—sheet-metal edges can be sharp
• Align the cover and start the screw by hand to avoid cross-threading
• Tighten snugly; do not overtighten into plastic or thin metal