Parts for Kitchenaid KHMS1850SBL1: 03 - Interior And Ventilation Parts

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.

This grease filter is an OEM replacement for Whirlpool microwaves. The filter helps to maintain the cleanliness and efficiency of the appliance. It is located underneath the microwave, typically in a slot behind a protective grille. Its primary function is to trap grease particles and prevent them from accumulating on internal components, ensuring optimal airflow and reducing the risk of fire.

Causes of a bad grease filter include excessive use without proper cleaning, exposure to high temperatures or grease splatters, or reaching the end of its lifespan due to regular wear and tear.

Symptoms of a clogged or defective grease filter:

• Reduced airflow or suction from the range hood
• Persistent cooking odors lingering in the kitchen
• Visible buildup of grease or grime on the filter or surrounding areas
• Clogged or obstructed air vents or ductwork

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore range hoods and over-the-range microwaves.

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 Microwave Door Interlock Switch is an OEM part for Whirlpool microwaves. This safety device ensures that the microwave only operates when the door is securely closed. The interlock switch prevents the microwave from running with the door open, protecting users from exposure to microwave energy.

You should replace the door interlock switch if it becomes faulty or damaged. Causes of a bad switch can include wear and tear from frequent use, electrical malfunctions, or physical damage from slamming the microwave door.

Symptoms of a bad microwave door interlock switch include:

• Microwave not starting or running intermittently
• Microwave running with the door open
• Error messages or safety warnings
• The interior light not turning on or off properly

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

Replacement interlock spring that provides tension for the appliance door latch so the door closes and the interlock switch can engage for normal operation. Restores reliable door engagement and latch return in compatible Whirlpool appliances. What it does:

• Provides tension to the door latch/interlock assembly so the door stays securely closed during use.
• Ensures the latch returns to the closed position and allows the interlock switch to complete the appliance's safety circuit.
• Helps resolve symptoms such as a loose or non-returning latch, door that won't stay closed, or cycles that stop because the door won't engage.
• Works as a direct replacement for the listed interlock spring in compatible Whirlpool assemblies.

• Disconnect power to the appliance before servicing to avoid electric shock or injury.
• Basic hand tools are typically required; panels or the door may need partial disassembly—refer to the model's service guide.
• Inspect the latch, striker, and interlock switch for wear or damage and replace if needed; improper installation can prevent correct engagement.

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. 

This capacitor stores and releases electrical energy to help an AC motor start and run smoothly. Replacing a weak or failed capacitor can restore reliable motor operation and reduce humming, no-start, or stall conditions.

• Provides the phase shift and starting torque an induction motor needs to start
• Helps the motor reach and maintain proper speed under load
• Common symptoms of a failing capacitor: motor hums but won't start, intermittent starts, slow or stalled rotation, or frequent thermal trips
• Visible clues may include a swollen case or leaking residue

• Disconnect power to the appliance before servicing; verify no voltage is present
• Capacitors can retain a charge—discharge safely before handling
• Note wire positions; move leads to the new capacitor one at a time and ensure snug terminal fit
• Reuse the original bracket/clip if applicable and secure the capacitor to prevent vibration

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 Screw is an OEM part for Whirlpool microwaves. It is responsible for securing various parts of the microwave together. This screw ensures a tight and secure fit for parts and helps maintain the structural integrity of the microwave, preventing any loose or rattling parts.

A bad microwave screw can occur due to wear and tear, accidental damage, or misplacement during maintenance or repairs. If you notice symptoms such as loose or wobbly components, difficulty in opening or closing the microwave door, or abnormal noises while the microwave is in use, it may be time to replace this part.

Symptoms of a bad microwave screw include:

• Loose or wobbly components
• Difficulty in opening or closing the microwave door
• Abnormal noises during operation

Restore your Whirlpool microwave by replacing the faulty or missing microwave screw with this genuine OEM part.

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

This replacement screw secures appliance panels, brackets, or internal components to keep them tight and aligned. Replace a missing, stripped, or damaged fastener to restore a solid, rattle-free fit and reliable operation.

• Fastens parts to the cabinet or frame to prevent movement
• Replaces missing, stripped, or corroded hardware that can cause looseness, vibration, or noise
• Helps correct gaps or misalignment after service
• Maintains proper support for covers, trims, or brackets

• Disconnect power; shut off gas/water if applicable before servicing
• Match screw length and location to the original position
• Start threads by hand to avoid cross-threading; tighten snugly without overtightening
• Repair or replace damaged clips/inserts before installing the new screw

Color: metallic. Measures about 5 inches wide by 12 inches deep.

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.