Wmh73521cb-0 Parts

The Turntable Tray is an OEM part for Whirlpool microwaves. It sits on the turntable support and rotates to ensure even cooking and heating of food. The tray is designed to withstand high temperatures and is essential for the microwave’s efficient operation.

Causes of a bad turntable tray can include cracks or chips from accidental drops, warping due to excessive heat, or wear and tear from regular use. A damaged tray can affect the microwave's ability to rotate food evenly, leading to inconsistent cooking results.

Symptoms of a bad turntable tray include:

• Visible cracks, chips, or warping on the tray
• Difficulty in rotating or a tray that doesn’t spin properly
• Uneven heating or cold spots in microwaved food
• Unusual noises during operation

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

The Waveguide Cover is an OEM part for Whirlpool microwaves. This cover protects the microwave's waveguide channel, which directs the microwave energy into the cooking cavity, ensuring efficient and even heating of food.

Causes of a bad waveguide cover can include food splatters, grease buildup, or damage from high temperatures and repeated use. A compromised waveguide cover can lead to inefficient microwave operation and potential safety hazards.

Symptoms of a bad waveguide cover include:

• Sparking or arcing inside the microwave
• Unusual noises during operation
• Visible damage or discoloration on the cover
• Uneven cooking or heating performance

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

The Diode is an OEM part for Whirlpool microwaves. The diode plays a key role in regulating power flow and protecting other sensitive components from voltage fluctuations.

Causes of a bad microwave diode can include component failure due to age or heat exposure over time. Diodes are also susceptible to electrical damage if exposed to power surges.

Symptoms of a bad diode can include:

• The microwave failing to power on or having intermittent power
• Food not heating up properly or unevenly
• Strange sounds like buzzing or humming emanating from inside
• The door lock mechanism not engaging or release properly
• Repeated tripping of fuses or circuit breakers

This genuine OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

The Interlock Spring is an OEM part for Whirlpool microwaves. It is located within the door assembly and provides proper tension to assist with smooth opening and closing of the microwave door. The spring allows for controlled movement that facilitates easy access when using the microwave.

Causes of failure could be normal wear and tear over time, damage from rough or forced handling of the door, or failure from excessive use.

Symptoms of a bad microwave spring include:

• Difficulty opening or closing the door
• The door not staying securely closed or popping open on its own
• Excessive vibration or noise related to door operation

This is a genuine Whirlpool OEM replacement this part is also compatible with Maytag, Jenn-Air, and some Kenmore models.

The Switch is an OEM part for Whirlpool microwaves. This switch is crucial for the proper operation of the microwave, as it ensures the correct function of the door mechanism and the control panel. 

Causes of a bad microwave switch can include wear and tear over time, damage due to frequent use, or electrical faults that prevent it from functioning correctly.

Symptoms of a bad microwave switch include:

• The microwave not starting or stopping unexpectedly
• The door not latching properly
• Error messages on the control panel
• The microwave light not turning on or off as expected

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

The Hardware Kit is an OEM part for Whirlpool microwaves. This kit includes essential mounting brackets, screws, and other fasteners required for the proper installation and secure mounting of the microwave, either over the range or within cabinetry.

Causes of a bad hardware kit can include wear and tear over time, exposure to moisture, or damage due to mishandling or incorrect installation.  

Symptoms of a bad hardware kit include:

• Loose or unstable microwave installation
• Rattling or vibrating noises during operation
• Difficulty in mounting or securing the microwave
• Visible rust or damage to screws and brackets

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

The Reflector is an OEM part for Whirlpool microwaves. It is located inside the microwave cavity behind the waveguide and works to redirect electromagnetic waves for more even cooking.  

Symptoms of a damaged reflector include:

• Inconsistent or incomplete heating of foods during cooking
• Hot and cold spots forming within the microwave cavity
• Lower overall power output from the microwave

Causes of reflector damage can be cracking or pitting of the reflective aluminum surface over multiple heating cycles. Impact incidents from user error may also damage its shape.

This OEM Whirlpool replacement assists in delivering uniform energy distribution for optimal microwave performance. This part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, and Roper microwave models.

The Filter is an OEM part for Whirlpool microwaves. This part filters grease and other particles from the air as it is vented out of the microwave, particularly when the microwave is used in conjunction with a range. This helps to maintain a clean kitchen environment and prevents grease buildup on the microwave’s internal components.

Causes of a bad filter can include accumulation of grease and food particles over time, exposure to high heat, or general wear and tear.  

Symptoms of a bad filter include:

• Reduced ventilation efficiency
• Excessive smoke or steam lingering in the kitchen
• Grease buildup on kitchen surfaces near the microwave
• Unusual odors during microwave operation

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.

This turntable support ring sits beneath the microwave's glass tray and rides on rollers to enable smooth, even rotation. Replacing a worn or damaged ring restores stable tray movement, reduces noise, and helps food heat more consistently.

• Supports the glass tray and distributes its weight as it rolls
• Works with the turntable coupler/motor to rotate the tray during cooking
• Helps maintain even heating by keeping the tray level and rolling smoothly
• Replace if cracked/warped or if rollers are worn; symptoms include tray not turning, intermittent rotation, scraping/grinding noises, wobbling, or uneven heating

• Disconnect power before servicing the microwave
• Remove the glass tray; lift out the old ring and clean the track area
• Position the new ring with rollers facing down; reseat the tray on the coupler
• Test rotation; if the tray still doesn't turn, inspect the coupler and turntable motor

The Nut is an OEM part for Whirlpool microwaves. It helps secure various parts within the microwave, ensuring proper assembly and function. It is used to fasten items, keeping them securely in place during use.

A bad microwave nut can occur due to wear and tear over time or accidental damage. If the nut becomes loose, stripped, or misplaced, it can lead to instability and compromise affected parts.

Symptoms of a bad microwave nut include:

• Loose or wobbly parts.
• Difficulty in operating the microwave.
• Unusual noises or vibrations during use.

This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.

This microwave magnetron is the high-voltage tube that generates the microwave energy to heat food. When it fails, the oven may run but not heat or heat very slowly. Replacing it restores normal cooking performance. What it does:

• Produces the microwave energy that heats food in the oven cavity
• A failed unit can cause the microwave to run but not heat
• Can create an unusual loud humming or buzzing during operation

• Includes 1 magnetron

• Unplug the microwave and discharge the high-voltage capacitor before servicing
• Handle by the mounting surfaces; avoid touching or damaging the antenna and ceramic insulators
• Reconnect high-voltage leads exactly as routed and reassemble cooling airflow parts; test with a cup of water to confirm heat

This Light Housing secures and protects the interior lamp assembly, helping keep the compartment safely illuminated. Replace a cracked or heat-damaged housing to restore a stable bulb fit and consistent lighting performance. What it does:

• Provides a stable mount for the interior light bulb/socket
• Shields nearby wiring and components around the lamp area
• Helps position the light for proper illumination inside the compartment
• Common signs of wear: cracked or melted housing, loose bulb fit, lens/cover won't stay attached, intermittent lighting from a poor physical connection

• 1 light housing

• Disconnect power to the appliance before servicing
• Remove the lens/cover and bulb, then unfasten the damaged housing
• Transfer the existing socket, wiring, and any hardware from the old housing as needed
• Reinstall the housing, replace bulb/cover, restore power, and test the light

This is the appliance's main power cord. It delivers household electricity to the unit so it can operate safely and reliably.

• Supplies AC power from the wall outlet to the appliance's internal wiring
• A damaged or failed cord can cause no power, intermittent power, or tripped breakers
• Replacing a worn cord can restore consistent power and improve safety

• Unplug the appliance and turn off power at the breaker before service
• Route and secure the cord to prevent pinching or abrasion

Replacement meal rack that restores support for cookware and bakeware in compatible Whirlpool ovens and ranges, providing correct clearance for even heating and easier loading and removal. What it does:

• Provides sturdy support for pans, dishes and bakeware during baking, roasting and broiling.
• Restores proper clearance and airflow for more consistent cooking results.
• Useful when the original rack is bent, damaged, missing or no longer seats correctly.
• Matches original equipment design to fit into the oven's rack support guides.

• Allow the appliance to cool and disconnect power before removing or installing the rack.
• Slide the rack into the oven's support rails until it seats securely; no special tools are typically required.
• Inspect support rails and rack stops for damage; replace if worn to prevent sliding or tipping.
• Do not use a warped or severely corroded rack—replace to avoid uneven cooking or safety hazards.

Color: Black

This block-style fuse holder secures and connects the appliance fuse to the wiring harness, restoring a safe electrical connection and thermal protection. Use it when the original fuse block is cracked, corroded, or no longer holding the fuse securely. What it does:

• Holds and connects the appliance fuse to the wiring harness so the thermal/overload fuse can function.
• Restores reliable electrical contact when the original block is cracked, melted, or corroded.
• Addresses symptoms such as intermittent power, no heat, or appliance not starting when caused by a bad fuse connection.
• Works with the existing fuse and wiring—does not replace the fuse itself.

• Disconnect power to the appliance before inspecting or replacing this part.
• Replace any damaged wiring, connectors, or insulation found during replacement; do not cut corners or bypass thermal safety devices.