Kenmore Microwave 721.69073900 (72169073900, 721 69073900) 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 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 replacement oven light bulb restores clear visibility inside the oven cavity. It brings back bright, reliable illumination so you can check doneness at a glance—using the door switch or light button—without opening the door or losing heat.

• Lights the oven cavity when the door opens or when the light button is pressed
• Helps you monitor cooking progress without interrupting cooking
• Typical symptoms: no light, intermittent flickering, dim light, or a blackened/broken bulb
• A failed bulb is the most common cause

• Disconnect power or switch off the circuit breaker; allow the oven to cool completely
• Remove the lens/cover per your model; unscrew or unclip the bulb from the socket
• Handle the new bulb by the base; avoid touching the glass on capsule/halogen styles
• Do not exceed the bulb type/wattage specified for your model; tighten gently and test operation

This replacement screw secures specified panels or components inside your appliance. Refreshing worn or missing hardware helps restore a tight fit, reduce rattling, and keep assemblies properly aligned for reliable performance.

• Provides secure fastening for brackets, panels, or internal assemblies
• Replaces stripped, rusted, or lost hardware
• Helps reduce vibration and rattling noises
• Symptoms include loose panels, shifting components, or a screw that won't tighten

• Disconnect power and allow any hot surfaces to cool before servicing
• Wear cut-resistant gloves and eye protection
• Match length and thread to the original; replace like-for-like
• Start threads by hand to avoid cross-threading; do not overtighten

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 spring provides controlled tension for a moving mechanism in your appliance. It helps doors, lids, or linkages operate smoothly and stay balanced, reducing slamming, sagging, and inconsistent movement.

• Applies calibrated tension so the mechanism returns to position and remains balanced
• Restores smooth open/close action
• Common failure signs include a door or lid that feels heavy/light, drops open, or won't hold position
• Also addresses squeaks, creaks, or snapping sounds near the hinge or linkage

• Disconnect power; if the appliance is water-connected, turn off the water supply
• Springs store energy—use caution, gloves, and eye protection
• Note original hook locations and orientation; reinstall to the same attachment points
• If your appliance uses two matching springs, replace both to maintain balance

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

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 replacement latch secures the appliance door or lid so it closes and engages reliably, helping the unit run and maintain proper operation. Ideal when the door won't stay shut or the appliance won't start. What it does:

• Secures the door/lid to the cabinet so the appliance can close properly
• Engages with the strike/keep to allow door-switch or lock mechanisms to operate
• Helps prevent leaks and heat loss caused by a door that won't seal
• Common symptom: appliance won't start or won't complete a cycle because the door fails to engage

• One latch

• Disconnect power (and water for washers) before starting any work
• Remove the access panel or door trim to reach the latch; use basic hand tools
• Check and adjust door alignment so the latch and strike meet squarely
• Test the door operation and run a short cycle to ensure reliable engagement

A sheet-metal tapping screw used to fasten appliance panels and components where a self-threading fastener is needed. Replaces stripped or missing screws to restore secure fits and reduce rattling or loose trim. What it does

• Threads into thin metal or plastic mounting points to secure panels, brackets, and trim
• Commonly used where pre-formed threads are not available
• Helps stop vibrating or loose panels that cause noise or alignment issues
• Designed to grab and form threads as it's driven in for a tight hold

• Tapping screw

• Use the correct screwdriver bit to avoid cam-out or head damage
• Start straight and drive slowly until snug; avoid over-tightening which can strip or crack mounting material
• Disconnect power and remove nearby wiring or components as needed for safe access
• Wear eye protection when working with small fasteners and metal panels

This holder/locker secures the appliance door latch assembly to keep the door aligned and closed during cycles. It restores proper latch engagement so the door stays shut and the unit can run safely. What it does:

• Supports and positions the door latch for reliable engagement
• Helps prevent the door from sagging or coming ajar during operation
• Commonly used when the door will not stay closed or latch properly
• Works with the latch assembly to maintain a tight door seal during cycles

• High-level replacement part; inspect surrounding latch and striker for damage before installing
• Power off and disconnect the appliance from the power source before starting repairs
• Use basic hand tools; retain all fasteners and observe their original placement