Parts for Ge EMO4000JBB04: 01 - Microwave Parts

This part is black in color.

Color: Black

This is the clear glass lens that covers the cooktop light on select GE over-the-range units. It shields the bulb from grease and splatters while allowing bright, even illumination of the cooking surface below.

• Protects the cooktop light bulb from grease, moisture, and debris
• Restores proper lighting if the original lens is missing, cracked, or stained
• Helps maintain safe, even illumination of the range area
• Common symptoms: broken or missing lens, dim or uneven light due to a damaged cover

• Disconnect power to the appliance before servicing
• Allow bulbs and surrounding area to cool completely
• Handle glass carefully to avoid chipping; wear cut-resistant gloves
• Ensure the lens seats fully and any retaining tabs/screws are secured per the product's service instructions

The Glass Light Lens is an OEM part for GE microwaves. It covers the light bulb inside the microwave, protecting it from food splatters and ensuring even illumination.The lenses measure approximately 7" x 3".

Causes of a bad glass light lens can include accidental impact, exposure to high heat, or general wear and tear.

Symptoms of a bad glass light lens include:

• Cracks or breaks in the glass
• Diminished visibility inside the microwave
• Light not being properly diffused
• Potential exposure of the light bulb to food splatters

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

The Light Bulb is an OEM part for GE microwaves. This bulb illuminates the interior of the microwave during operation, enhancing visibility so you can monitor the cooking process without opening the door. It is designed to withstand the high temperatures and vibrations typically found in microwave ovens.

Over time, the light bulb can burn out or become damaged due to the harsh environment of the microwave. Frequent on and off cycles can also shorten the lifespan of the bulb. Replacing a non-functioning or dim bulb will restore visibility and improve the functionality of your microwave.

Symptoms of a bad light bulb include:

• Dim lighting inside the microwave.
•  Flickering or inconsistent performance.
• Complete lack of light when the microwave is operating.

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

The Light Bulb Socket is an OEM part for GE microwaves. It holds the light bulb securely in place within the microwave, ensuring proper illumination of the interior when the door is opened or the microwave is in operation.

Causes of a bad light bulb socket can include wear and tear over time, exposure to high heat, electrical faults, or damage from replacing the bulb improperly.

Symptoms of a bad light bulb socket include:

• The interior light not turning on when the microwave is in use
• Flickering or intermittent lighting
• Difficulty securing the light bulb in the socket
• Visible damage or discoloration to the socket

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

The Turntable Coupler is an OEM part for GE microwaves. It connects the microwave's turntable motor to the glass tray, enabling the tray to rotate during cooking. This rotation ensures even heating and cooking of food items placed on the tray.

Causes of a bad turntable coupler can include regular wear and tear, physical damage from heavy or improperly placed items, or overheating due to prolonged use.

Symptoms of a bad turntable coupler include:

• Turntable not rotating
• Uneven heating or cooking of food
• Grinding or clicking noises during operation
• The coupler being visibly damaged or worn

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

This replacement rack holder supports the removable wire rack inside your microwave, keeping it steady and level. Replace a cracked or missing holder to restore stable, reliable two-level cooking performance. What it does:

• Holds the interior wire rack securely against the cavity wall
• Maintains correct rack height and alignment for stable support
• Helps prevent rack wobbling, slipping, or rattling during use
• Common signs of failure: cracked/heat-damaged holder, rack tilts or falls, scorch/arcing marks near the support

• 1 rack holder

• Disconnect power by unplugging the microwave or switching off the circuit breaker
• Remove the wire rack and note the holder's orientation and location
• Remove the existing holder (release clip or remove screw) and transfer any original mounting hardware if needed
• Seat the new holder fully, reinstall the rack level, and test with a microwave-safe cup of water

The Turntable Motor is an OEM part for GE microwaves, designed to rotate the glass plate or turntable inside the microwave cavity. This rotation ensures the food is cooked evenly by exposing all parts of the food to the microwave energy. 

The causes for these issues often stem from wear and tear over time, especially with frequent use. Other factors can include damage from food particles or spills that seep into the motor area or mechanical failure within the motor itself.

Symptoms of a failing Turntable Motor include:

• The turntable not rotating when the microwave is in use
• A grinding or buzzing noise indicating the motor is struggling to turn
• The microwave cooking food unevenly or taking longer to cook

This OEM GE  part is also compatible with Hotpoint, RCA, and some Kenmore models

Made by GE. This microwave stirrer motor comes with a square shaped shaft and is usually located in the upper part of the microwave. For a D shaped shaft turntable motor order WB26X10038.

This upper duct directs exhaust and airflow inside the appliance to help proper ventilation and heat management. It replaces a damaged or warped upper duct to restore correct internal airflow paths. What it does:

• Channels exhaust and internal airflow between the cooktop/vent area and the vent housing
• Restores proper airflow if the original duct is cracked, bent, or blocking ventilation
• Helps reduce unusual smells or cooking smoke reaching cabinetry by maintaining the exhaust path
• Works as a structural guide for adjacent panels and components in the vent area

• Follow the appliance service manual for disassembly steps and correct reinstallation order
• Disconnect power (and gas if applicable) before servicing to avoid shock or injury
• Use appropriate hand tools; avoid overtightening fasteners that can crack the duct or mounting tabs

The Halogen Light Bulb is an OEM part for GE microwaves and ovens. It provides interior lighting, allowing you to clearly see the contents inside the appliance during operation. This illumination is essential for monitoring cooking progress and ensuring safety.

You should replace the halogen light bulb if it burns out or becomes damaged. Causes of a bad halogen light bulb can include regular use over time, electrical surges, or physical impact that can cause the bulb to break.

Symptoms of a bad halogen light bulb include:

• The light not turning on when the microwave or oven door is opened
• Flickering or dim lighting inside the appliance
• A burnt-out appearance or visible breakage in the bulb

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

This gas flame sensor detects whether a burner's flame is present so the range/oven's gas valve and ignition control can operate safely. It helps restore reliable ignition and prevents the valve from staying open when no flame is detected. What it does:

• Senses the presence of a gas flame and signals the control to keep the valve open
• Helps prevent gas flow if a flame is not detected
• Can stop ignition or cause the oven/range not to heat when failing
• Commonly replaced when burners won't stay lit or control shows ignition-related errors

• One gas flame sensor

• Turn off electrical power and shut off the gas supply before servicing
• Handle the sensor and its connector carefully to avoid damage
• Reinstall in the exact position and orientation; loose connections can cause false faults

A replacement magnetron assembly that generates the microwave energy used for cooking and reheating. Installs in countertop and over-the-range microwave ovens to restore normal heating performance when the magnetron fails. What it does:

• Produces high-frequency microwave energy that heats food inside the oven cavity.
• Commonly replaces a unit when the microwave stops heating or heats very weakly.
• Can address symptoms like no/poor heating, intermittent heating, or loud humming from the oven during operation.
• Not a control or capacitor—this part is the microwave-generating tube and works with the oven's HV system.

• Always disconnect power and unplug the appliance before starting service.
• The high-voltage capacitor can retain a dangerous charge; discharge properly.
• Handle the magnetron carefully; avoid touching terminals or the antenna.
• Follow OEM instructions and safety guidelines for reassembly and testing.

The Lower Lever Switch is an OEM replacement part for GE microwaves. This component activates the door interlock switch when the microwave door is closed. It ensures that the microwave only operates when the door is securely closed, preventing any operational hazards.

Symptoms of a bad Lower Lever Switch include:

• The microwave not starting, indicating the door isn't recognized as closed
• The appliance operating with the door open, a clear safety hazard
• Unusual sounds or issues when attempting to start the microwave
• The need to apply extra pressure to keep the door closed

Common causes for a malfunctioning Lower Lever Switch can be attributed to mechanical wear from frequent use, damage incurred during cleaning or use, or internal issues affecting the switch’s activation mechanism.

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

The Microwave Door Switch is an OEM part for GE microwaves, designed to prevent the microwave from operating when the door is open by interrupting the power whenever the door is not securely closed. The door switch is an essential safety feature.

Symptoms of a failing Microwave Door Switch include:

• The microwave not starting or heating
• Running when the door is opened
• Unusual noises when the door is closed  

Causes of a bad Microwave Door Switch can result from repeated opening and closing of the door or slamming that can cause the switch to degrade or become misaligned, leading to intermittent or failure.

This OEM GE part can also be used on Hotpoint, RCA, and Kenmore/Sears appliances. 

The Monitor Switch is an OEM replacement part for GE microwave ovens. Located internally on the turntable control circuit board, this switch monitors rotation of the turntable during cooking cycles.  

Causes of failure involve degradation of the electrical contacts from continuous arcing loads over years of use combined with vibration stresses.

Symptoms of a faulty monitor switch include:

• The turntable no longer rotates or spinning intermittently
• Cooking cycles aborting prematurely with error messages 
• Screeching or grinding noises emanating from beneath cavity
• Visible burnt spots on turntable drive assembly

This genuine GE switch is also compatible with select Hotpoint and RCA models.

This run capacitor helps the appliance motor start and run smoothly by storing and releasing electrical energy. Replacing a worn capacitor can restore reliable motor operation and reduce abnormal motor noise or cycling. What it does:

• Provides the brief power boost motors need to start and maintain RPM
• Helps stabilize motor voltage and improve run efficiency under load
• Commonly linked to symptoms such as motors that hum but won't start, slow or intermittent motor operation, or unusual motor noise
• Reduces stress on motor windings that can lead to premature failure when functioning properly

• One motor capacitor

• Always disconnect power at the breaker or unplug the appliance before servicing
• Capacitors can hold a charge; discharge safely
• Observe proper polarity and mounting location during installation; secure wiring and connectors

The Fuse is an OEM part for GE microwaves. It serves as a safety device designed to protect the microwave from excessive current that can cause overheating and potential fire hazards. When the current flowing through the microwave circuit exceeds a certain level, the fuse blows or breaks, cutting off the power to prevent damage or fire.

Common causes for a fuse to blow include power surges, faulty wiring within the appliance, or the use of microwave inappropriate containers that cause sparks. It is essential to address these issues not only to replace the fuse but also to correct the underlying problems to prevent future failures.

Symptoms of a bad fuse include:

• The microwave suddenly stops working.
• No signs of power or response even when the microwave door is closed and the start button is pressed.

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

The Capacitor is an OEM part for GE microwaves. This component stores and releases electrical energy to help power the microwave's high-voltage circuits, essential for the proper functioning of the appliance.

Over time, capacitors can fail due to electrical surges, overheating, or degradation of the internal components. When a capacitor goes bad, it can affect the microwave's ability to generate heat and operate efficiently.

Symptoms of a bad Capacitor include:

• The microwave not heating food
• Unusual humming or buzzing noises
• The microwave shutting down or not starting

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

This high-voltage rectifier diode is used in the microwave's high-voltage circuit. It converts AC to DC so the magnetron can produce heat. A failed diode can cause no heat, loud humming, or a blown fuse when starting. What it does:

• Rectifies high-voltage AC to DC to power the magnetron
• Blocks reverse voltage in the HV circuit
• Common failure symptoms can include: runs but doesn't heat; loud hum then shutdown; line fuse blows at startup

• 1 high-voltage diode

• Unplug the microwave and properly discharge the high-voltage capacitor before servicing—dangerous voltage can remain even when unplugged
• Match diode orientation/polarity to the original and ensure a solid chassis ground connection where used
• Route leads and reinstall any clamps/insulators exactly as found; keep wiring clear of sharp edges and hot components
• If the original diode failed, inspect the HV capacitor and transformer for related issues before reassembly

This rear duct assembly channels exhaust and airflow at the back of the appliance to help maintain proper ventilation and consistent cooking performance. It replaces a damaged or rusted rear duct to restore correct air routing and safety. What it does:

• Directs exhaust and ventilation from the oven cavity to the appliance rear outlet
• Prevents hot air from escaping into adjacent components, reducing heat-related wear
• Helps maintain even temperature distribution and consistent cooking results
• Addresses symptoms like visible duct damage, rattling at the rear, or disrupted exhaust flow

• Intended for rear-panel installation; follow your appliance service manual for exact procedure
• Disconnect power and gas before beginning any repair
• Use correct fasteners and gaskets from the OEM parts list when reinstalling

This high-voltage transformer supplies the elevated voltage needed by the magnetron to produce microwave energy. Replacing a faulty transformer restores heating performance and reduces risk of electrical faults in the oven. What it does:

• Converts line voltage to the high voltage required by the magnetron to generate microwaves.
• Can cause no-heat conditions when failed; replaces a transformer that no longer powers the magnetron.
• Works with the HV capacitor and diode as part of the microwave high-voltage circuit.

• Disconnect power at the house breaker and unplug the appliance before servicing.
• The high-voltage capacitor can hold a dangerous charge—discharge it properly before touching HV components.
• Use insulated tools and avoid contact with transformer terminals; refer to the service manual for wiring and mounting details.

This thermostat is a temperature-sensing safety switch used in microwave ovens. It monitors heat and opens the circuit during an over-temperature condition to protect internal components and help prevent damage. What it does:

• Monitors temperature at a specific location inside the microwave
• Interrupts power if overheating is detected to protect components
• Helps safeguard the magnetron and wiring from thermal damage
• Presents as: shuts off mid-cycle, won't restart until cooled, no power, or runs but doesn't heat

• 1 thermostat

• Disconnect power before service; microwaves contain a high-voltage capacitor that can hold a dangerous charge—discharge it properly
• Note wire locations and transfer connections one at a time to the new thermostat
• Mount in the original location with firm, flush contact to the surface for accurate sensing
• Reinstall all covers and safety shields before restoring power and testing

This holder nut assembly secures a component to the appliance frame, restoring proper mounting and reducing vibration or movement. Replace a damaged or missing holder nut to keep connected parts stable and functioning. What it does:

• Secures a component or assembly to the appliance frame or mounting bracket
• Prevents looseness, rattling, and misalignment caused by worn or missing mounting hardware
• Restores a safe, stable connection that helps maintain normal operation
• Matches OEM mounting geometry for a direct replacement when the original nut is damaged

• Disconnect power to the appliance before servicing to avoid shock or injury
• Access the mounting area by removing the appropriate panel or cover per your model's service instructions
• Start threads by hand to avoid cross-threading, then tighten with the correct tool; do not overtighten
• If any fasteners or nearby components are damaged, replace them as needed for a secure installation

Color: brown. Measures about 9 inches in diameter.

The Cooking Tray is an OEM part for GE microwaves. This glass tray rotates to ensure even cooking and heating of food. It is designed to fit perfectly in the microwave, providing a stable platform for cookware and dishes.

Over time, the cooking tray can become damaged or worn out due to regular use, accidental drops, or exposure to extreme heat. Replacing a damaged cooking tray is essential to maintaining the microwave’s functionality and ensuring food is heated evenly.

Symptoms of a bad cooking tray include:

• Cracks or chips in the glass
• Difficulty in rotating or wobbling during operation
• Uneven cooking or heating of food
• The tray not fitting properly in the microwave

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

The Air Filter is an OEM part for GE microwaves. This component is essential for trapping grease, smoke, and odors during cooking, maintaining a clean and safe kitchen environment. It is typically located above the cooking surface or within the microwave's ventilation system. The filter measures approximately 6.5 inches deep by 13.5 inches wide

Causes of a bad air filter can include clogging from grease and food particles, physical damage, or general wear over time. A compromised air filter can reduce the efficiency of the microwave's ventilation, leading to poor air quality and potential buildup of contaminants.

Symptoms of a bad air filter include:

• Reduced ventilation efficiency
• Increased smoke or odors during cooking
• Visible grease buildup on the filter
• The filter appearing damaged or excessively dirty

This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.

This wire rack assembly provides a sturdy, removable shelf for your oven, giving stable support for cookware and bakeware and restoring proper shelf placement and clearance. What it does

• Replaces a bent, damaged, or missing oven shelf so pots and pans sit level during baking and roasting
• Restores smooth sliding and correct clearance for consistent cooking results
• Helps prevent cookware from tipping or shifting on weakened racks
• Fits into existing rack supports or side rails for secure positioning

• Remove power to the appliance and allow it to cool completely before installing
• Slide the rack into the oven rails or supports until fully seated; it rests level
• Wear gloves to avoid pinches or sharp edges while handling the rack
• No special tools usually required; refer to your owner's manual for model-specific guidance

This charcoal filter is used on microwave ovens to filter grease and other air contaminants during cooking. This filter contains charcoal for added filtering and is not washable. When the filter becomes clogged, it must be removed and replaced. If the air filter is clogged, smoke and fumes will not be cleaned, and the room will fill with odors during cooking. The charcoal filter catches grease spatters, and if greasy foods are cooked often, the filter will need to be changed more often. The filter should be removed and replaced regularly and anytime that it is not working efficiently. Removing the filter does not require tools. Pull the old filter straight out and push the new one in place.This charcoal filter is a silver metallic part that is sold individually. It is designed for use in microwave ovens designed by General Electric.

The Hood Damper Assembly is an OEM part for GE microwave ovens. This part controls the flow of exhaust air to minimize odors and smoke from cooking. This damper opens to allow air to vent outside during microwave operation and closes to prevent outside air from entering when the microwave is not in use.

Causes of a bad hood damper assembly can include mechanical failure such as a stuck or broken damper, deterioration of the linkage or springs that operate the damper, and blockage caused by grease or debris accumulation, which can impair its functionality.

Symptoms of a bad Hood Damper Assembly include:

• Ineffective venting of smoke or cooking odors
• External air leakage into the microwave system
• Unusual noises during operation indicating a damper misalignment or obstruction

This OEM GE part is also compatible with Hotpoint, RCA, and some Kenmore models.