Kenmore Microwave 721.80864400 (72180864400, 721 80864400) Parts

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 Charcoal Filter is an OEM part for LG microwaves. It plays a crucial role in filtering and removing odors, smoke, and grease particles from the air during cooking. It is constructed with activated charcoal, which has absorbent properties and helps to eliminate cooking odors.

Over time, the charcoal filter can become saturated and less effective in odor removal. It is recommended to replace the charcoal filter periodically to maintain optimal performance and ensure clean and fresh air in your kitchen.

Symptoms of a saturated or clogged charcoal filter may include:

• Lingering cooking odors in the kitchen
• Reduced efficiency in capturing smoke or grease particles
• The presence of visible debris or discoloration on the filter

This OEM LG part can also be used on Kenmore/Sears appliances. 

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.

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 Turntable Motor is an OEM replacement part for LG microwaves. Located under the microwave cavity, it rotates the special turntable platter during cooking operations.   

Symptoms of a faulty turntable motor include:

• Turntable failing to spin or rotating unevenly during cooking  
• Abnormal noises or vibrations coming from the bottom of the unit
• Uneven cooking results along microwave perimeter 

Causes related to normal wear of internal motor workings through extended use. Damage from power surges is also possible over time.

This LG replacement part is compatible with some Kenmore models as well.

This holder assembly secures the locker/latch mechanism in place so the door or access panel aligns and closes properly. Replacing a cracked or missing holder restores secure engagement and smooth, reliable operation. What it does:

• Supports and positions the locker/latch mechanism
• Maintains alignment for consistent latching and closing
• Common symptoms of a failed holder: loose latch feel, misalignment, door/panel not staying closed, or visible cracks/broken mounts
• Direct-fit replacement to restore proper support

• 1 holder assembly

• Disconnect power to the appliance before servicing.
• Access the locker area and retain any screws/clips; transfer any reusable hardware from the original holder as needed.
• Align the new holder with existing mounting points and tighten screws evenly—do not overtighten.
• Test latch engagement and door/panel operation before final reassembly.

The Thermostat is an OEM part for LG microwaves. This part monitors and regulates the temperature within the appliance. The thermostat ensures that the microwave does not overheat, automatically shutting off the power if the internal temperature exceeds safe levels. This preventive measure helps to avoid damage to the microwave and potential safety hazards in the kitchen. 

Causes of a bad thermostat can range from normal wear and tear, which may cause the component to lose its calibration over time, to overheating incidents that permanently damage its sensitivity.

Symptoms of a bad Microwave Thermostat include:

• The microwave unexpectedly turning off during use
• The microwave failing to start
• Inconsistent cooking temperatures or unevenly cooked food

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

This rivet assembly fastens panels, brackets, or covers inside the microwave cabinet. Replacing a damaged or missing fastener restores a tight fit, reduces vibration noise, and keeps mounted components properly aligned.

• Secures panels, brackets, or covers to the cabinet for a stable fit
• Use when a rivet is cracked, missing, or no longer holds
• Can help resolve rattling, buzzing, or loose panel movement
• Maintains proper alignment and support of mounted parts

• Disconnect power before servicing; support and remove over-the-range/built-in units for safe access.
• Microwaves contain a high-voltage capacitor that can retain a dangerous charge—service should be performed by qualified personnel.
• Reinstall using existing mounting holes; ensure the rivet is fully seated and secure.
• Wear cut-resistant gloves and eye protection to avoid injury from sharp metal edges.

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 truss head tapping screw secures interior panels and small components on compatible appliances, restoring proper fit and stopping rattles or loose trim. It's a direct hardware replacement for a single mounting point. What it does:

• Fastens panels, brackets, and trim where a low-profile truss head is required
• Replaces missing or stripped screws that cause rattling or loose parts
• Provides a secure hold by forming threads in sheet metal during installation
• Useful for repairing cosmetic or functional panel alignment issues

• Disconnect power before working on any appliance to avoid shock or injury
• Use the correct sized Phillips or Torx driver to prevent cam-out or screw damage
• Start straight and thread slowly; do not overtighten to avoid stripping sheet metal
• Replace only with the exact part number for best fit and performance

This replacement screw secures panels, trim and internal components to restore a tight fit and stop rattling or loose parts. Use it when a missing or stripped screw causes panels or controls to shift. What it does:

• Secures panels, trim pieces or mounting brackets to keep components aligned
• Stops rattling, vibration noise or loose-fitting panels
• Replaces missing or stripped screws to restore proper fastening
• Helps ensure other parts stay in position during normal use

• Disconnect power before working on the appliance to prevent shock or injury
• Use the correct screwdriver or bit to avoid stripping the head
• Thread carefully and tighten until snug; avoid overtightening which can strip threads or crack plastic
• Replace with the exact OEM screw if available to ensure proper fit and function

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