Parts for Whirlpool IBMS1450YS0: 05 - Oven Interior Parts

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 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.

This magnetron is the microwave's high-voltage tube that generates the microwaves used to heat food. Replacing a faulty magnetron restores heating performance and stops power-related cooking failures. What it does:

• Converts high-voltage electrical energy into microwave radiation that heats food
• Common symptom: microwave runs but does not heat
• Also be needed if you notice humming, arcing, or a burning electrical smell during operation
• Works with the oven's high-voltage system and waveguide to deliver cooking power

• Disconnect power before servicing; microwave high-voltage components can retain lethal charge
• Discharge the high-voltage capacitor and follow safety procedures
• Inspect waveguide cover and surrounding components for damage when replacing the magnetron

This thermostat retainer secures the refrigerator thermostat or temperature sensor in place to ensure accurate temperature sensing and stable operation. It replaces a worn or broken mounting clip to restore proper sensor positioning. What it does:

• Holds the thermostat/temperature sensor firmly against the evaporator or designated mounting point
• Prevents sensor movement that can cause erratic temperature readings or cooling issues
• Maintains correct sensor alignment for reliable refrigerator temperature control
• Helps reduce vibration and wear on the thermostat assembly

• Disconnect power to the appliance before servicing to avoid shock or injury
• Access may require removing interior panels or trim; keep fasteners organized
• Handle the thermostat and sensor carefully to avoid damaging the sensing element or wiring

This noise filter reduces electrical interference on the appliance's power line to help prevent buzzing, humming or intermittent operation caused by electrical noise. It restores quieter, more reliable performance when the filter is the worn component. What it does:

• Suppresses electrical noise and interference on the appliance power line
• Helps reduce audible buzzing, humming or intermittent electronic behavior
• Protects sensitive control electronics from stray electrical transients
• Restores normal operation when a damaged filter is the root cause

• Disconnect power before servicing to avoid shock hazard
• Handle and mount the filter per OEM orientation; secure connections firmly

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 high-limit thermostat is a safety temperature limiter that stops heating when temperatures climb too high, protecting the appliance and preventing overheating. Use it to restore proper temperature cutoff and improve safe operation. What it does

• Acts as a temperature safety cutoff to interrupt power when temps exceed safe limits
• Prevents continuous heating and reduces fire/overheat risk
• Can cause loss of heat, no heating cycles, or oven/range failing to reach temperature when faulty
• Restores the appliance's built-in over-temperature protection when replaced

• Disconnect power to the appliance before servicing to avoid shock or injury
• Located behind panels or at the heating assembly; access may require removing exterior panels
• Verify electrical continuity with a multimeter before installation

This lamp holder secures and powers the oven/cabinet G4-base bulb so interior lighting works reliably and safely. It restores proper bulb contact and helps prevent flickering or intermittent lighting. What it does:

• Holds the G4-base light bulb in place and provides the electrical connection
• Restores interior lighting when the socket is loose, corroded, or damaged
• Helps stop flickering or intermittent on/off issues caused by a faulty holder
• Compatible with the oven/cabinet light assembly that uses a G4-style bulb

• Disconnect power to the appliance before servicing to avoid shock
• Allow the appliance and bulb to cool before touching components
• Inspect wiring and connectors; replace the holder if terminals are corroded or melted
• Use the correct G4 bulb type and wattage per the appliance manufacturer's instructions

The Halogen Bulb is an OEM replacement part is for Whirlpool range and oven models. This bulb provides concentrated light for the oven cavity, allowing users to clearly see food and monitor cooking progress.

Causes of a bad halogen bulb can include natural burnout over the lifecycle of the bulb from prolonged and frequent use of the oven light, or damage to the bulb from accidental impact or breakage during cleaning.

Symptoms of a bad halogen bulb include:

• Dim or no light emitted from the oven cavity
• Flickering or intermittent light function
• Premature burnout of the bulb filament

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

This lens-lamp assembly replaces a damaged or missing interior light lens and lamp, restoring clear, protected illumination inside the appliance. It provides a covered light source that reduces glare and shields the bulb from food and debris. What it does:

• Covers and protects the appliance interior light bulb from spills, splashes, and impact
• Diffuses light for more even interior illumination
• Restores proper visibility when the original lens is cracked, cloudy, or missing
• Helps prevent direct exposure to the bulb, improving safety during use

• One lens-lamp assembly

• Disconnect power to the appliance before starting any repair
• Allow the bulb to cool before handling; wear gloves to protect hands and avoid fingerprints on bulb
• Test the light function after installation to ensure proper fit and operation

The Inverter is an OEM replacment part for Whirlpool microwaves. It regulates the magnitude and duration of electromagnetic waves generated during cooking functions.  

Causes of a faulty inverter can include general wear from prolonged use or damage from power surges entering the microwave.

Symptoms include:

• Inconsistent or incomplete heating of foods  
• Sparking or burning smells emanating from within
• Control panel errors or failure to properly sense wattage settings

This OEM Whirlpool replacement ensures precise electromagnetic wave output. Compatible with KitchenAid, Maytag, Jenn-Air, and select other branded microwaves, the inverter restores consistent cooking performance.

This oven temperature sensor detects internal oven temperature so the control can regulate heating for even cooking and accurate bake cycles. Replaces a failed or intermittent sensor to restore proper temperature control. What it does

• Senses oven cavity temperature and sends readings to the control board
• Can cause oven to run too hot, too cool, or display temperature-related errors when failing
• Often used when bake/broil cycles are inconsistent or the oven won't reach set temperatures
• Works as the temperature feedback component for electronic oven controls

• Disconnect power to the appliance before testing or replacing the sensor
• Handle the sensor probe and wiring gently; avoid pulling on wires or kinking the lead
• Verify replacement by visually inspecting connections and testing continuity with a multimeter

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 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.

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

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 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 motor cover protects and secures the appliance motor assembly, keeping wiring and components shielded from debris and wear. It restores the motor's protective housing for safer, quieter operation. What it does:

• Shields the motor and wiring from lint, dust, and foreign objects
• Helps maintain proper airflow and component alignment around the motor
• Replaces cracked, broken, or missing housings that leave the motor exposed
• Can reduce rattle or rubbing caused by a damaged motor cover

• Disconnect power to the appliance before beginning any work
• Remove access panels or panels obstructing the motor to reach the mounting location
• Align the cover over the motor and secure with the original fasteners
• Inspect wiring and nearby components while installing; ensure no wires are pinched or contacting moving parts