Wmh78019hz-1 Parts

The 40W Light Bulb is an OEM replacement part for Whirlpool microwave ovens. It is a standard-size bulb designed to provide illumination inside the microwave cavity, allowing you to easily view and monitor the cooking or reheating process.

Symptoms of a faulty microwave light bulb include:

• Dimming or flickering light during operation
• Complete bulb failure or no illumination within the cavity
• Discoloration or physical damage to the bulb itself

Causes of a bad microwave light bulb can include normal wear and tear over time, electrical surges or voltage fluctuations, or physical impact or vibration during use.

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

This Charcoal Filter is an OEM replacement part for Whirlpool microwaves. The charcoal filter is responsible for improving the air quality in the kitchen by removing impurities and odors from the air. It is used to remove smoke, grease, and cooking odors as it is drawn up through the vent fan. By trapping these particles, the filter helps maintain cleaner air in the kitchen and prevents odors from recirculating and affecting the taste and smell of your food.

Causes of a bad Charcoal Filter include saturation from absorbing smoke and odors over time, accumulation of grease and particles that clog the filter, leading to decreased effectiveness, and physical damage that compromises its ability to filter air properly.

Symptoms of a bad Charcoal Filter include:

• Persistent odors in the kitchen after cooking.
• Smoke not being effectively vented out during microwave use.
• Reduced airflow from the microwave's venting system.

Replacing the charcoal filter at regular intervals or when these symptoms are noticed ensures that your microwave continues to operate efficiently and keeps your kitchen air clean. This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.

Description- Color: metallic. Measures about 5 inches wide by 5 inches deep.

The Turntable Motor is an OEM part for Whirlpool microwaves. This motor is responsible for rotating the microwave turntable, ensuring even heating of food by allowing it to rotate during the cooking process. It is located beneath the turntable and engages with the turntable coupler to facilitate smooth rotation. Installation of this motor may need a Torx driver. If a small stud is present in the center of the Torx screw, a security torx bit will be necessary for the replacement of those screws. 

Causes of a bad turntable motor can include wear and tear from regular use, electrical failures, or physical damage due to overloading or mishandling. These issues can result in the turntable not rotating properly, leading to uneven heating.

Symptoms of a bad turntable motor include:

• Turntable not rotating
• Uneven cooking or heating of food
• Unusual noises coming from the motor area
• The microwave displaying error codes related to the turntable

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

This OEM microwave top mounting screw is for mounting microwave ovens to upper cabinets. Replace if you've lost one of the original mounting screws or they've become damaged. This gold screw made of heavy-duty metal can be installed with a screwdriver and socket set. Measuring approximately 3 inches in length, this top mounting screw is sold individually.

The mounting bracket assembly requires two mounting screws. Make sure to order the number needed for your microwave oven. Remember to unplug your microwave before installing the mounting bracket assembly. Tighten the mounting screw with the screwdriver, being careful not to overtighten it. This can strip the threads on the screw.

Choose this OEM replacement part to ensure a secure and safe installation. It's designed to fit microwaves from top brands such as Whirlpool, Roper, Estate, Inglis, Maytag, Amana, and KitchenAid.

The Light Bulb is an OEM part for Whirlpool microwaves. It provides illumination within the microwave cavity, enhancing visibility so you can monitor your cooking without opening the door. This feature is essential for convenience and to ensure proper cooking, as it helps to prevent heat loss and maintain the microwave’s energy efficiency.

Symptoms of a bad Light Bulb include:

• The microwave interior remaining dark despite the appliance being in use.
• Flickering or inconsistent lighting when the microwave is operating.
• The bulb not turning on, indicating it may be burnt out or there is a connection issue.

Causes of a bad light bulb can include filament wear out due to prolonged use, damage from moisture or grease exposure inside the microwave, or electrical surges that can shorten the bulb's lifespan.

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models, ensuring it fits a wide range of microwave models.

The Microwave Coupler is an OEM part for Whirlpool microwaves. This component connects the microwave’s turntable motor to the turntable tray, allowing the tray to rotate and ensure even cooking of food. The coupler is a small but vital part that ensures the proper movement of the turntable, contributing to the microwave's overall efficiency.

Causes of a bad coupler can include wear and tear from regular use, accidental damage from heavy items placed on the turntable, or misalignment issues. A malfunctioning coupler can lead to uneven cooking and potential damage to the microwave’s internal components.

Symptoms of a bad microwave coupler include:

• The turntable not rotating
• Uneven cooking or heating of food
• Grinding or clicking noises during operation
• The turntable tray wobbling or not staying in place

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

This is a thermal safety fuse that opens the circuit if temperatures rise beyond a safe limit, protecting the appliance from overheating and preventing further damage. Replacing a failed fuse restores power to the affected circuit once the underlying cause is addressed.

• Monitors temperature in a protected circuit and cuts power if unsafe heat is detected
• Helps prevent overheating-related damage
• Typical failure signs: no power/no operation, cycle won't start, shuts off mid-cycle after overheating event
• Must not be bypassed; replace if open and investigate the root cause of overheating

• Unplug appliance or disconnect power before service
• Verify the fuse is open with a multimeter; replace only after correcting any airflow/overheating issues
• Install in the same orientation and location as the original to ensure proper temperature sensing
• Handle wiring carefully; transfer connectors one at a time to avoid miswiring

The Motor Spacer is an OEM part for Whirlpool microwaves. It is designed to support and position the turntable motor, ensuring it stays aligned and functions correctly. This spacer helps maintain the stability of the turntable, allowing even and consistent heating of food.

Causes of a bad motor spacer can include wear and tear over time, physical damage from heavy use, or misalignment due to accidental impacts. Regular inspection and maintenance can help identify issues before they lead to motor malfunction.

Symptoms of a bad motor spacer include:

• The turntable not rotating properly
• Unusual noises coming from the turntable area
• Inconsistent heating or cooking of food
• The turntable being unsteady or wobbling

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

The Upper Cabinet Template is an OEM part for Whirlpool microwaves. This template is used during the installation of the microwave to ensure correct placement and alignment within the upper cabinet, providing guidance for drilling holes and securing the microwave in place.

Causes of a bad or missing template can include misplacement, wear and tear from repeated use, or damage during the installation process.

Symptoms of a bad or missing upper cabinet template include:

• Difficulty aligning the microwave properly within the cabinet
• Incorrect placement of mounting holes
• The microwave not sitting securely or level
• Challenges during the installation process

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

The Air Damper is an OEM part for Whirlpool microwave/range hood combos. It is a crucial component that regulates the flow of air into the microwave cavity, helping to maintain proper temperature and airflow during operation.

Symptoms of a faulty Air Damper include:

• Overheating or uneven heating of food items
• Excessive noise or rattling sounds during operation
• Error codes related to temperature or airflow issues

Causes of a bad Air Damper can include wear and tear over time, physical damage or obstruction, or issues with the damper's motor or control system.

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

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 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 is an OEM part for Whirlpool microwaves. It is an important safety mechanism that monitors the door latch and prevents microwave operation when the door is open. 

Symptoms of a faulty interlock include:

• The microwave fails to start or run when the door is open  
• Buzzer sounding indicating a blocked safety device
• Door unable to latch or stay closed securely

Causes can be due to worn contacts within the interlock from repetitive door opening cycles. Over time, this safety component becomes fatigued.

Replacing with this new OEM interlock protects against unintentional microwave exposure by ensuring the door remains closed during operation. Peace of mind is restored with a working safety mechanism.

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

The Rack is an OEM replacement part for Whirlpool microwaves. This rack holds food securely during the heating process for optimal, even cooking.

Symptoms of a bad rack include:

• Food toppling or sliding during cooking
• Inability to fit standard-sized plates or bowls
• Warm or cold spots forming in cooked food

Causes of a bad rack can include rust, dents, or broken wires that compromise its stability and support. Over time, heavy use may cause warping or bending out of shape.

This OEM replacement is also compatible with some GE, Kenmore, and Frigidaire microwaves. 

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 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.