Kbms1454sss-1 Parts

The Microwave Light Bulb is an OEM part for Whirlpool microwaves. It illuminates the interior of the microwave, allowing you to monitor the cooking process and ensuring visibility while using the appliance.

You should replace this light bulb if it burns out or becomes damaged. Causes of a bad light bulb can include natural burnout over time, electrical surges, or damage from accidental impact.

Symptoms of a bad light bulb include:

• The microwave interior remaining dark during operation
• Flickering light inside the microwave
• The light not turning on at all when the door is opened

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

The Turntable Tray is an OEM part for Whirlpool microwaves. This circular plastic tray sits atop the cavity within the microwave. The turntable tray is responsible for smoothly rotating food items during cooking cycles to ensure even heating exposure. It prevents hot and cold spots that can ruin prepared meals. The tray measures approximately 16 inches in diameter.

Causes relate to extended use over time, warping from high heat exposure, or accumulating residue that impedes free movement.

Symptoms of a worn turntable tray include:

• Inconsistent cooking results with some portions remaining underdone
• Squeaking or scraping noises emitting from below during operation
• The tray no longer spinning smoothly on its post seal track

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

The Switch is an OEM part for Whirlpool microwaves. It controls the turning on and off of power to the microwave during cooking cycles as well as detects positions within cycles to signal appropriate actuations of the microwave's magnetron, fans, and lights. The switch is a crucial electrical component that facilitates the fully automatic operation of preset cooking programs.  

Causes of a bad switch can include wear and tear over time or unexpected surges that cause electrical component failure.

Symptoms of a bad switch include:

• Cooking programs failing to advance properly or stopping mid-cycle unexpectedly
• The microwave failing to turn on or experiencing power issues  
• Random noises, humming, or lights occurring when the microwave is supposed to be idle
• Buttons or controls acting intermittently unresponsive

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 Waveguide Cover is an OEM part for Whirlpool microwave ovens. This component serves as a protective cover for the waveguide, which is responsible for directing and distributing the microwave energy within the oven cavity.

Symptoms of a bad waveguide cover:

• Sparking or arcing inside the microwave oven cavity
• Uneven or inconsistent heating of food
• Damage or discoloration to the interior walls or components
• Potential leakage of microwave radiation

Causes of a faulty waveguide cover can include physical damage from impact or mishandling, exposure to excessive heat or moisture, or general wear and tear over time.

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

The Magnetron is an OEM part for Whirlpool microwaves. This part generates the microwave energy necessary for cooking and heating food.

Causes of a bad Magnetron can include normal wear and tear over time, power surges or electrical issues, or physical damage from impact or mishandling.

Symptoms of a bad Magnetron include:

• The microwave not heating or cooking food properly
• Arcing or sparking inside the microwave cavity
• Strange noises or buzzing sounds during operation
• Burning smells or smoke coming from the microwave

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 lets it roll smoothly during cooking. Replacing a worn or damaged ring restores stable rotation for more even heating and prevents tray wobble or binding.

• Supports the glass turntable as it rotates
• Provides a low-friction track for smooth, consistent movement
• Helps keep the tray level and centered during operation
• Typical symptoms: turntable not turning, uneven heating, grinding/scraping noises, tray wobbling or coming off track

• Disconnect power to the microwave before servicing
• Remove the glass tray and lift out the old ring
• Clean the turntable deck of debris before installing the new ring
• Center the new ring on the deck, reinstall the tray, and test rotation with a cup of water

The Diode is an OEM part for Whirlpool microwaves. This part convers AC power to DC power to ensure proper operation of the magnetron, which generates the microwaves for cooking.

Causes of a bad diode can include electrical surges, wear and tear over time, or damage due to excessive heat.  

Symptoms of a bad diode include:

• The microwave not heating or only heating intermittently
• Unusual noises such as buzzing or humming during operation
• The microwave running but not producing heat
• Visible damage or burn marks on the diode

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

The Turntable Motor is an OEM part for Whirlpool microwave ovens. It is responsible for rotating the turntable or carousel tray inside the microwave, ensuring even heating and cooking of food.

Causes of a bad Turntable Motor can include wear and tear over time, lack of proper lubrication, or issues with the motor's bearings or electrical connections.

Symptoms of a bad Turntable Motor may include:

• The turntable not rotating or spinning erratically
• Loud grinding or squeaking noises during operation
• Potential uneven heating or hot/cold spots in food

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

This line fuse protects the appliance's incoming power circuit by opening if an overload or short occurs. Replacing a blown fuse can help restore power once the underlying issue is corrected, preventing further damage to sensitive components.

• Interrupts line voltage when excessive current or a short circuit is detected
• Typical symptoms: unit completely dead, no display or interior lights, won't start or run
• Fuse tests open/no continuity with a multimeter when blown
• A blown fuse often points to another fault that must be addressed

• Disconnect power at the breaker/unplug before servicing; microwaves contain high-voltage parts that can retain a dangerous charge even when unplugged
• Replace only with the same type and rating as the original fuse
• Ensure the fuse seats firmly in its holders; do not bypass or jumper a fuse

This magnetron capacitor is the microwave high-voltage capacitor that helps supply the magnetron with the pulse of energy needed to produce heat. Replacing a failing capacitor restores normal heating performance and reduces arcing or loud humming. What it does

• Stores and releases the high-voltage pulse required by the magnetron so the microwave can generate heat.
• Prevents unstable magnetron operation that can cause weak or no heating.
• Common symptoms of a failing capacitor: oven runs but doesn't heat, intermittent heating, loud buzzing/humming, or visible arcing inside the cavity.
• A failed capacitor can also cause blown internal fuses or tripped circuits.

• One capacitor.

• Disconnect power and verify the appliance is completely de-energized before servicing.
• Capacitors can hold dangerous charge; discharge the capacitor safely with an insulated tool.
• Use the exact replacement part and follow the appliance service manual for routing and connections.

This release rod links the push-button to the latch mechanism so the microwave door opens when pressed. Replacing a bent or broken rod restores smooth, consistent door release and proper latch operation.

• Transfers motion from the door-open button to the latch levers to release the door catch
• Helps ensure the door opens promptly when the button is pressed
• Common symptoms: button does nothing or feels loose, door hard to open, intermittent opening
• Often fails due to wear, misalignment, or a dislodged linkage

• Disconnect power; microwaves contain a high-voltage capacitor that can retain a dangerous charge
• Remove the upper grille and control panel to access the latch/button linkage
• Note the rod's routing and any clips; transfer reusable hardware and match original orientation
• After reassembly, verify door switch alignment and test for smooth opening before use

This electronic control board is the appliance's main brain. It manages power and timing for key functions so settings respond correctly and cycles run as designed, helping restore normal operation when the original board fails.

• Directs power to components based on inputs from the controls and sensors
• Coordinates cycle timing and overall operation
• Drives the display and status indicators

• Disconnect power at the breaker or unplug the unit before servicing
• Use anti-static precautions; handle the board by its edges
• Photograph wiring and transfer connectors and any mounting hardware to the new board
• Restore power and run a test cycle/diagnostics per your model's service instructions

This turntable drive shaft connects the turntable motor to the coupler and glass tray so the microwave can rotate food for even heating. Replacing a worn or damaged shaft restores smooth, reliable turntable rotation.

• Transfers motor torque to the coupler and tray to spin the turntable
• Helps ensure even cooking and reheating performance
• Common symptoms: turntable not turning, intermittent or jerky rotation, tray wobbling or uneven heating, grinding/clicking from under the tray

• Unplug the appliance before service; microwave components can retain dangerous voltage
• Remove the glass tray and support, then access the shaft from inside the cavity
• Inspect the coupler and motor for wear; replace related parts if damaged
• Align the shaft properly to avoid stripping or noise on startup

This door interlock assembly mounts behind the microwave's front panel and aligns the latch and safety switches. Replacing a worn interlock restores reliable door detection so the microwave only starts when the door is fully closed.

• Holds and actuates the internal door safety switches
• Maintains precise latch alignment to prevent false "door open" signals
• Ensures the microwave will not run with the door open for safety
• Common symptoms: won't start, requires pressing on the door to run, stops when the door is jostled, intermittent "door" message

• Disconnect power before servicing; microwaves contain a high-voltage capacitor that can retain a charge.
• Access typically requires removing the outer cabinet and control panel.
• Position switches correctly in the holder per your service manual and verify smooth latch engagement.
• After reassembly, the unit only operates with the door fully closed.

This turntable coupler links the microwave's turntable motor to the glass tray or support, enabling smooth, consistent rotation for even heating. Replace a worn or cracked coupler to restore reliable tray movement and reduce noise.

• Connects the turntable motor to the tray/support to rotate food evenly
• Maintains proper tray engagement and height for stable rotation
• Common symptoms: tray not turning or intermittent rotation; uneven heating
• May also cause clicking/grinding noises beneath the tray or visible damage to the coupler

• Disconnect power before servicing
• Remove the glass tray and roller ring; pull the old coupler straight up from the cavity floor
• If it won't release from above, access the motor from below to disengage the coupler
• Align the new coupler with the motor shaft and press fully into place; reinstall ring and tray; test with a cup of water

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.