Parts for Kenmore 721.80592401 (72180592401, 721 80592401): Controller Parts

A Tap-Tite binding-head screw used to fasten appliance panels and components where a self-tapping metal thread is required. Replaces missing or damaged fasteners to restore secure assembly and reduce vibration or rattling. What it does:

• Creates its own mating thread in thin sheet metal for a secure hold without a nut.
• Holds panels, brackets, and trim in place to prevent looseness or movement.
• Commonly used where stripped, missing, or broken screws cause rattling, misalignment, or parts that won't stay attached.
• Compatible with standard screwdrivers or nut drivers sized to the binding-head.

• Disconnect power and unplug the appliance before working on it.
• Use the correct driver bit to avoid cam-out or head damage.
• Start straight and apply steady pressure; avoid overtightening to prevent stripping the formed threads.
• If the original hole is badly damaged, assess for repair or use of a larger fastener as needed.

This is a replacement screw used to secure appliance components and panels. It restores proper fastening where a stripped, missing, or damaged screw causes loose parts or rattling. What it does:

• Fastens panels, trim, or internal components to maintain structural fit
• Helps stop vibration-related noise from loose assemblies
• Replaces missing or corroded screws that prevent proper closures
• Restores secure mounting after repairs or disassembly

• Use the correct screwdriver or bit to avoid stripping the head
• Tighten until snug—do not over-torque to prevent thread damage
• Keep small parts away from children and pets
• Disconnect power or water before accessing internal parts

This truss head tapping screw secures panels, brackets, and covers in your appliance. Replacing a missing or damaged fastener restores a snug fit, reduces vibration, and helps keep components properly aligned for reliable performance.

• Provides low-profile holding power; wide truss head helps secure thin panels and trim
• Replaces lost, stripped, or corroded screws at the original mounting points
• Helps eliminate rattling, vibration, or loose handles/covers
• Addresses situations where a screw will not tighten or backs out during use

• Disconnect power; shut off water/gas if applicable before servicing
• Align parts and hand-start threads to avoid cross-threading
• Tighten until snug; do not overtighten to prevent stripping
• If the receiving hole is damaged, for repair before installing the new screw

This is a truss-head tapping screw used to secure trim, panels, and small assemblies on compatible LG appliances. It provides a low-profile, wide-bearing head that helps hold parts flush and resist pull-through. What it does:

• Fastens plastic and sheet-metal components where a self-tapping thread is needed
• Truss head spreads load to prevent damage to soft or thin materials
• Helps secure control panels, brackets, or trim pieces that require a low-profile head
• Common replacement when original mounting screws are missing, stripped, or corroded

• One truss-head tapping screw

• Use the correct screwdriver bit and moderate torque to avoid stripping the screw or workpiece
• Start threading straight and let the screw form threads without forcing at an angle
• Disconnect power and follow appliance-specific service safety procedures before working internally
• Replace any damaged mating threads or clips for a secure fit

This replacement mounting screw secures panels and small appliance components to restore proper fit and prevent vibration or loose parts. A simple, direct replacement when the original fastener is missing or damaged. What it does:

• Secures panels, brackets, or small assemblies to keep parts aligned
• Stops rattling or vibration caused by loose or missing screws
• Restores normal fit where a stripped or corroded screw failed
• Matches the OEM fastener form for a correct, long-lasting fit

• Unplug the appliance or disconnect power before servicing
• Use the correct driver to avoid stripping the head
• Thread carefully and do not overtighten to prevent damage to threads or housing

This door frame assembly replaces the appliance's outer door trim and support to restore proper door fit and protect the inner door components. Ideal when the door frame is cracked, bent, or no longer secures the door evenly. What it does:

• Restores the outer door trim and structural support so the door closes and latches properly.
• Protects the door glass and inner components from impact and moisture intrusion.
• Helps eliminate gaps or misalignment that can cause rattling, air leaks, or difficulty closing the door.
• Matches the OEM form for a direct replacement when the original frame is damaged.

• Disconnect power and unplug the appliance before starting any repair.
• Remove the existing door trim/frame by loosening the retaining screws or clips; handle any glass carefully.
• Check door alignment and seal after installation; adjust hinge or strike as needed for proper fit.
• If the assembly has bonded or sealed components, consider replacing any associated gasket or fasteners if damaged.

Inner plastic door film covers the holes in the inner door frame.

Glass not included.

This door latch assembly for a microwave engages the door hooks and actuates the interlock switches so the unit recognizes a closed door, restoring proper latching and helping ensure the oven only operates when securely shut.

• Engages the door hooks to trigger the interlock switches and signal "door closed"
• Can help resolve no-start or "Door/Open-Close" indications with the door shut
• Addresses a door that won't latch, feels loose, or shows cracked/worn latch parts
• Built to mount in the original location and interface with existing door switches

• Disconnect power before service; microwaves contain high-voltage components that can retain a dangerous charge
• Access typically requires removing the control panel to reach the latch/interlock bracket
• Note switch orientation and spring positions; transfer any reusable hardware from the old assembly
• After installation, verify firm door engagement and proper interlock switch actuation before restoring power

The Door Latch Spring is a genuine OEM part for LG microwaves. As a key component of the microwave, the door latch spring is responsible for providing the tension needed to securely close and latch the microwave door. It works behind the scenes to ensure a tight seal when the door is shut.

Symptoms of a bad door latch spring include:

• The microwave door not closing or latching properly 
• Gaps appearing around the door seal when shut
• Difficulty opening and closing the door

Causes of a bad door latch spring can include wear and tear over time. Exposure to excessive door slamming can also place undue stress on the spring.

This genuine LG OEM  replacement part is also compatible with Sears/Kenmore microwaves.

The LG microwave glass tray is an OEM replacement part for LG countertop microwaves. Located inside the microwave cavity, the glass tray provides a flat, durable surface for cooking and heating food items. The tray measures about 13 inches in diameter.

Causes of a bad glass tray can include cracks or chips from impact damage, prolonged exposure to high heat levels, or chemical etching from acidic food spills.

Symptoms of a bad glass tray microwave include:

• Cracks, chips, or breaks in the glass compromising structural integrity
• Difficulty removing or placing the tray due to a poor sliding fit  
• Food particles or liquids seeping below the tray and needing cleaning
• Visibility issues looking inside the microwave cavity  

This OEM LG part is also compatible with Sears/Kenmore countertop microwave models.

Color: brown. Measures about 10 inches in diameter.

This turntable motor drives your microwave's glass tray, rotating food for more even heating. Replacing a failing motor restores proper tray movement and helps reduce cold spots during cooking. What it does:

• Rotates the glass tray via the turntable coupler during cook cycles
• Helps promote even heating by keeping food moving
• Addresses symptoms such as the tray not turning, intermittent rotation, or grinding/clicking noises from beneath the cavity
• Useful check: ensure the roller ring and coupler aren't damaged or obstructed

• 1 turntable motor

• Disconnect power; microwaves contain high-voltage components that can retain a charge
• Typically accessed from the unit's bottom panel; remove the cover to reach the motor
• Move the two wires and mounting screws from the old motor to the new one; align the shaft with the coupler
• After reassembly, confirm the tray sits correctly on the roller ring and spins freely

This replacement door glass restores a clear viewing window and the protective barrier on your microwave door. Replace it when the original panel is cracked, shattered, or heavily scratched to keep the door secure and safe to use.

• Provides the see-through window and protective barrier within the microwave door
• Helps maintain proper door rigidity and alignment when intact
• Replace if the glass is cracked, chipped, shattered, loose, or badly scratched
• Reduced visibility, rattling, or visible damage are common symptoms of failure

• Unplug the microwave before servicing; microwaves can retain high voltage—use caution and do not open the cabinet
• Support the door; removal from the hinges may be required per your model's diagram
• Handle glass with cut-resistant gloves; edges can be sharp
• Transfer any reusable trim/clips as directed and verify the door latches and closes properly after installation

The Turntable Coupler is an OEM part for LG microwaves. This coupler connects the motor to the turntable, enabling the rotation of the glass tray during the cooking process. 

Causes of a bad turntable coupler can include wear and tear from regular use, cracks or breaks due to the weight of heavy dishes, or damage from accidental impact. 

Symptoms of a bad turntable coupler include:

• The glass tray not rotating during operation
• Uneven heating or cooking of food
• Unusual noises from the turntable area
• Visible damage or wear on the coupler

This OEM LG part is also compatible with some Kenmore models.

The Grease Filter is an OEM replacement part for LGmicrowaves. It plays a vital role in capturing grease, smoke, and odors generated during cooking, ensuring cleaner air in the kitchen. Regular cleaning or replacement of the microwave grease filter is essential for maintaining optimal airflow, filtration performance, and preventing potential fire hazards.

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

Symptoms of a clogged or defective microwave grease filter:

• Reduced airflow or suction from the microwave ventilation system
• Unpleasant 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 LG part is also compatible with Sears/Kenmore microwaves.

The Light Bulb is an OEM part for LG microwaves. It provides illumination inside the microwave oven, allowing users to monitor the cooking process and check the condition of the food without opening the door.

Causes of a bad light bulb can include normal wear and tear, electrical surges, or damage due to impact or overheating. Over time, the filament inside the bulb can burn out, or the bulb itself can become loose or disconnected.

Symptoms of a bad light bulb include:

• The microwave interior light not turning on
• Flickering or dimming of the light
• Intermittent lighting during operation

This OEM LG part is also compatible with Sears/Kenmore models.

This canopy resistor regulates current to a range-hood or canopy fan circuit to help the blower run at the correct speeds. Replacing a failing resistor can restore proper fan speed control and stop intermittent operation. What it does:

• Controls electrical resistance in the canopy/blower circuit to help regulate fan speeds.
• Helps prevent the motor from running only on a single speed or from failing to start at selected speeds.
• Can cause symptoms such as inconsistent fan speeds, no response from speed controls, or occasional fan cutoff.
• Works with the hood's wiring and control switch to deliver the correct voltage to the fan motor.

• Disconnect power to the appliance before accessing the canopy or electrical connections.
• Inspect wiring and connectors for heat damage or corrosion; replace harness or terminals if damaged.

The Door Latch Housing and Interlock Switch Assembly is an OEM replacement part for LG microwaves. It consists of the protective door latch housing casing along with the two-door switches and interlock switch.

The interlock switch prevents microwave energy from being generated inside the oven when the door is open. It shuts off all power once a faulty seal is detected between the door and cavity.

Symptoms of issues can include:

• Microwave failing to turn on or cook with the door open
• Sparking or arcing seen near the door seal or frame
• Error codes displayed related to interlock detection faults

Compatible models include some GE, Kenmore, and Samsung units using matching door designs sourced from LG.

The Microwave Door Switch is an OEM replacement part for LG countertop microwaves. It monitors the door position electrically to prevent unsafe oven operation if ajar. 

Symptoms of a bad door switch include:

• Inability to start or pause a cooking cycle unless securely latched  
• Error messages about the door being open
• Inconsistent detection of open/closed door positions
• Unreliable contact functioning after extended use

Causes involve normal wear of electrical contacts and internals through many open/close uses. Exposure to moisture intrusion from spills may potentially damage sensitive switch circuitry over time as well.

This genuine LG replacement switch is also compatible with Sears/Kenmore microwaves.

The Interlock Door Switch is an OEM part for LG microwaves. It is a safety component located on the door of the microwave designed to prevent the microwave from operating unless the door is securely closed. The interlock door switch works with the microwave's electronic control board to sense when the door is open or closed and allow or disallow operation accordingly.

Causes of a bad interlock door switch can include normal wear and tear from repeated opening and closing of the microwave door over time.

Symptoms of a bad interlock door switch include:

• The microwave runs or heats with the door open
• Error codes or diagnostic messages related to door sensors on the control board
• The microwave fails to operate even when the door is securely closed

This OEM LG part is also compatible with some Sears/Kenmore microwaves.

A high-voltage capacitor for the appliance's high-voltage circuit that stores and releases electrical energy to support proper heating operation. Replacing a failing capacitor can restore consistent heating and prevent related electrical faults. What it does:

• Stores and delivers high-voltage energy used by the magnetron/ high-voltage assembly to generate heat.
• Failure may cause no-heat or weak-heat conditions in the oven.
• Faulty capacitors can contribute to arcing, loud humming, or blown high-voltage fuses.
• Works as part of the HV circuit; not a user-serviceable low-voltage control.

• High-voltage components can hold a dangerous charge—disconnect power and discharge the capacitor before servicing.
• Use insulated tools and avoid touching terminals; verify proper operation with appropriate test equipment.

This high-voltage transformer steps household AC up to the level the magnetron needs to generate microwave energy. Replace a failing transformer to restore reliable heating when the unit runs but food remains cold.

• Steps up line voltage to the high voltage required by the magnetron
• Works with the high-voltage capacitor and diode to create microwave energy
• Failure can cause running but no heat, loud humming/buzzing, burning odor, or visible overheating
• Shorted windings can blow the internal fuse or trip a breaker

• Unplug the microwave; high-voltage components can retain a dangerous charge—properly discharge the HV capacitor.
• Remove the outer cabinet, label wire locations, and disconnect leads carefully. Transfer any mounting hardware/brackets and secure the transformer firmly.
• Verify all connections are tight and routed correctly; reassemble and test with a cup of water. Do not operate the microwave empty.

The Magnetron is an OEM part for LG microwaves. As the primary cooking mechanism, it generates microwave energy to heat and cook foods quickly.

Causes can be from normal wear and tear over years of use. Damage may also occur if the microwave interior is exposed to moisture, spills or debris.

Symptoms of a faulty magnetron include:

• Slow or ineffective cooking
• Hot or cold spots in cooked foods
• Buzzing or humming noises emanating from inside the microwave

This OEM LG part is also compatible with some Kenmore models.

This microwave thermostat is the safety control that monitors temperature and opens the circuit if overheating is detected, protecting internal components. Replace it if your oven is dead, loses heat, or shuts off mid-cycle due to a failed thermostat. What it does:

• Monitors temperature and interrupts power when overheating occurs to help prevent damage
• Helps protect internal components and wiring from excessive heat
• Failure can cause: no power, shuts off during or shortly after starting, or runs but does not heat
• Replacing a failed thermostat helps restore normal operation and safety protections

• 1 thermostat

• Unplug the appliance; microwaves contain high-voltage components that can retain a lethal charge even when unplugged
• Remove the outer cover to access the thermostat; location varies by model
• Move wires one at a time to the new thermostat and mount it firmly against the mating surface for proper heat sensing
• Reassemble, restore power, and test operation

The Diode is an OEM replacement part for LG countertop microwave models. Located internally on circuit boards regulating magnetron function, it precisely controls the electric current flow.

Causes of a bad diode involve thermal fatigue over time putting repetitive stress on sensitive semiconductor junctions. Microwave demands may accelerate failures.

Symptoms include:

• Intermittent cooking or complete failure to energize the tube
• Error codes appearing on the control panel display
• Buzzing or humming noises emitting from internal circuitry

This OEM LG part is also compatible with Sears/Kenmore microwaves.

This fan assembly moves air through the unit to cool internal components and maintain proper ventilation. Replacing a worn or seized fan restores correct airflow, helps prevent overheating, and reduces excessive noise from a failing motor or wheel.

• Circulates cooling air across internal components to prevent overheating
• Exhausts air through the vent/duct path for proper ventilation
• Common symptoms: fan not running, weak airflow, or loud rattling/squealing
• Unit may overheat or shut off during use when the fan fails

• Disconnect power before service; microwaves contain a high-voltage capacitor that can retain a dangerous charge—follow proper safety procedures.
• Remove access panels to reach the fan housing; note airflow direction and wire orientation.
• Transfer any brackets, grommets, or screws from the original assembly if required.
• After installation, verify the wheel spins freely and airflow direction is correct before reassembly.

This mounting plate is a metal bracket used to secure the microwave chassis/components in the correct position. A worn or damaged plate can cause poor fitment, vibration, or noise during operation.

• Provides a stable mounting surface for the designated microwave assembly
• Helps reduce vibration and rattling noises
• Restores proper alignment if the original plate is bent or broken
• Commonly replaced when the original plate is damaged or missing

• Unplug the appliance and discharge the high-voltage capacitor before servicing a microwave
• Use proper personal protective equipment; metal edges can be sharp
• Note orientation and fastener locations before removal
• Tighten mounting hardware evenly to avoid distortion

This mechanical charcoal refrigerator filter helps reduce food and fridge odors for fresher-smelling compartments. It's a direct-fit replacement that restores odor-absorbing capability so your fridge interior smells cleaner. What it does

• Adsorbs and traps common food and household odors to reduce smells in the fridge
• Helps prevent odor transfer between compartments and stored foods
• Restores the intended odor-control function when the original filter is spent or clogged
• Works as a simple replaceable cartridge in compatible LG refrigerator filter housings

• One mechanical charcoal refrigerator filter cartridge

• High-level replacement: remove the old filter cartridge and snap or twist the new cartridge into the filter housing per the refrigerator manual
• Follow the refrigerator manufacturer's instructions for alignment and secure seating to avoid leaks or loss of function
• Disconnect power or follow any appliance-specific safety steps recommended by the manufacturer before servicing
• Dispose of the used filter per local regulations for household waste

This fan assembly moves air through the unit to cool internal components and maintain proper ventilation. Replacing a worn or seized fan restores correct airflow, helps prevent overheating, and reduces excessive noise from a failing motor or wheel.

• Circulates cooling air across internal components to prevent overheating
• Exhausts air through the vent/duct path for proper ventilation
• Common symptoms: fan not running, weak airflow, or loud rattling/squealing
• Unit may overheat or shut off during use when the fan fails

• Disconnect power before service; microwaves contain a high-voltage capacitor that can retain a dangerous charge—follow proper safety procedures.
• Remove access panels to reach the fan housing; note airflow direction and wire orientation.
• Transfer any brackets, grommets, or screws from the original assembly if required.
• After installation, verify the wheel spins freely and airflow direction is correct before reassembly.

The Damper Bracket is an OEM component for LG microwaves. Located inside the microwave cavity above the wave stirrer, this bracket holds the position of the damper assembly that helps distribute heat evenly during cooking. The bracket measures approximately 12” by 5”.

Symptoms of a bad damper bracket can include:  

• Hot or cold spots developing within the microwave cavity
• Looseness in the damper assembly fit
• Reduced heat circulation leading to uneven cooking

Causes typically consist of cracking over long-term heat exposure. Repeated opening/closing of the damper may also weaken attachment points on the bracket.

This OEM LG part is also compatible with Sears/Kenmore microwaves. 

The Damper is an OEM component for LG microwaves. Located within the cooking cavity, it regulates airflow and safely vents steam escaping heated foods. 

Causes of a faulty damper can involve standard wear and exposure accepting steam and condensation release. Food or liquid particles drying within tracks also threaten eventual adhesion issues restricting travel if left unaddressed between cleanings.

Symptoms of a damaged or defective damper include:

• Inability to adequately vent excess moisture from heating  
• Potential messes spilling beyond the microwave frame  
• Grating sounds or squeaks emitting during cooking
• Flaps possibly stuck inhibiting steam circulation 

This damper is also compatible with Kenmore microwaves as well.