Parts for Lg LFX21971ST02: Freezer Parts

The Water Filter is an OEM part for LG refrigerators. It is a component that ensures the purity and quality of your drinking water and ice.

The water filter is designed to effectively reduce contaminants, impurities, and odors from your water supply, providing you with clean and refreshing drinking water. It employs advanced filtration technology to remove substances such as chlorine, sediment, and other potentially harmful particles.

Causes of a faulty water filter can include regular usage over time, expiration of its filtering capacity, or clogging due to sediment buildup. These factors can result in compromised water quality, decreased flow rate, or unpleasant taste and odor.

Symptoms of a bad water filter may include:

• Decreased water flow from the dispenser
• Water with an unusual taste or odor
• Visible discoloration or particles in the water

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

This is a replacement mounting screw used to secure appliance panels, trim or components. It restores proper attachment to reduce vibration and rattling and helps keep removable parts firmly in place during operation. What it does:

• Fastens panels, brackets or trim pieces to the appliance frame
• Restores secure fit when original screw is missing, loose, or stripped
• Reduces rattling and vibration caused by loose hardware
• Helps maintain proper alignment of removable covers and control panels

• Disconnect power and water before starting any repair
• Verify size and thread match the original screw before installation
• Use the correct screwdriver or bit to avoid stripping the head
• Tighten securely but do not overtighten — overtightening can strip threads or crack plastic parts
• Keep small parts away from children and pets

Replacement ice bucket that collects and stores ice produced by the refrigerator ice maker, keeping ice contained and ready for dispensing. Molded plastic construction provides a clean catch area and helps reduce spills and freezer mess. What it does:

• Holds and stores ice produced by the ice maker so cubes are contained and accessible.
• Guides ice toward the dispenser/auger area to help ensure smooth delivery when seated correctly.
• Replaces cracked, broken or missing buckets that can cause leaks, spills or misalignment.
• Helps reduce loose ice and freezer clutter that can lead to ice jams or dispenser issues.

• Disconnect power to the refrigerator before removing or installing the ice bucket.
• Empty remaining ice and allow any frost to melt before installation to avoid blockages.
• Ensure the bucket is fully seated and aligned with the ice maker/dispenser so ice flows correctly.

This guide rail is the sliding track that supports and guides a freezer or refrigerator drawer for smooth opening and closing. Replacing a worn or damaged rail restores stable movement and proper drawer alignment. What it does:

• Provides a stable track for the drawer to slide in and out smoothly
• Prevents drawer sagging, sticking, or misalignment during use
• Reduces scraping, grinding, or noisy movement from a damaged rail
• Helps the drawer fully seat and latch properly when closed

• One guide rail as shown

• Disconnect power to the appliance before servicing to avoid shock
• Remove the drawer per the appliance manual to access the rail assembly
• Inspect mounting clips and screws; reuse only parts that are undamaged
• Align the rail fully and secure fasteners; test drawer motion before returning to service

This rail connector secures a slide rail to its mounting point, keeping the rail aligned and stable so the assembly moves smoothly. Replace a cracked, worn, or missing connector to restore proper tracking and support.

• Joins the slide rail to its bracket or panel to maintain alignment and support
• Helps the rail travel smoothly without binding or coming off track
• Replaces broken, warped, or missing connectors that allow rails to loosen
• Typical signs of failure: rail separates, wobbles, sags, or won't stay engaged

• Disconnect power to the appliance; remove items to access the rail safely
• Remove the drawer/shelf and rail as needed to reach the connector
• Release locking tabs or fasteners, transfer the rail to the new connector, and seat it fully
• Reinstall components and test for smooth travel; wear gloves to protect hands from sharp edges

This connector joins two sections of the refrigerator's water tubing to create a secure, leak-resistant seal. Replace a cracked or loose connector to restore proper water flow to the dispenser and ice maker.

• Provides a sealed union between two water tubes in the appliance's water system
• Helps prevent air and water leaks that can impact dispenser and ice maker performance
• Typical failure signs include drips or puddles near the connection, visible seepage, or moisture alerts
• Also causes low/no dispenser flow or small or hollow ice cubes

• Disconnect power and shut off the water supply; dispense water to relieve line pressure
• Prepare tubing with a clean, square cut; insert each tube fully into the connector until seated, then pull-test to retention
• Restore water and check all joints for leaks; purge air by dispensing water before normal use

Replacement drawer tray assembly that restores the bottom surface of a refrigerator drawer for organized storage and smooth operation. Use this part when a drawer bottom is cracked, warped, or not seating correctly to keep contents supported. What it does:

• Forms the bottom of a refrigerator drawer to support produce, packaged foods and other items.
• Replaces cracked, warped or otherwise damaged trays that can cause items to tip or spill.
• Helps drawers slide and seat properly by restoring the tray's fit and alignment.
• Restores a hygienic, easy-to-clean surface inside the drawer.

• Unplug the appliance or shut off power at the breaker before working on the refrigerator.
• Remove drawer contents and pull the drawer out; remove any retaining clips or fasteners holding the tray.
• Align the replacement tray with the drawer tracks/tabs and reattach any clips or screws; test drawer operation before returning contents.
• Use gloves to protect hands from sharp edges; for model-specific guidance.

The Cap Cover is an OEM part for LG refrigerators. This cover is designed to protect and secure various components within the refrigerator, such as the water filter or other internal mechanisms. Its role is to ensure that these components are shielded from debris, moisture, and potential damage, maintaining the overall efficiency and cleanliness of the appliance.

Causes of a bad cap cover can include wear and tear over time, cracks or breaks from accidental impacts, or warping due to exposure to temperature fluctuations. Misalignment or improper installation can also contribute to the cap cover becoming damaged or ineffective.

Symptoms of a bad cap cover include:

• Loose or missing cover
• Visible cracks or damage on the cover
• Debris or moisture accumulating in areas meant to be protected
• Misalignment or difficulty in securing the cover properly

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

The Freezer Drawer Gear is an OEM part for LG refrigerators. It facilitates the smooth operation of the freezer drawer, allowing it to slide in and out effortlessly.

You should replace this gear if it becomes worn or damaged. Causes of a bad freezer drawer gear can include regular wear and tear, damage from overloading the drawer, or mechanical issues due to improper alignment or installation.

Symptoms of a bad freezer drawer gear include:

• Difficulty in opening or closing the freezer drawer
• The drawer not staying aligned or level
• Unusual noises when operating the drawer

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

The Compressor Overload Protector is an OEM replacement part for LG refrigerators. It plays an important safety role in protecting the compressor from damage due to excessive heat. Located near the compressor unit, the overload protector functions to shut off power to the compressor if temperatures become too high during operation.

Causes can include normal wear over time rendering it less responsive to temperature changes. Mineral or refrigerant deposits may also impede its ability to detect overheating conditions accurately.

Symptoms of a faulty overload protector include:

• Refrigerator fails to properly cool or the compressor does not run
• Circuit board or electrical component failure or burnout
• Lack of cold air production and higher than normal freezer/fridge temperatures

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

The Run Capacitor is an OEM part for LG refrigerators. It is located near the compressor in the appliance's cooling system. It stores electrical energy and provides a boost to the motor during startup, ensuring smooth and efficient operation. The capacitor helps maintain the required power levels, stabilizes voltage, and supports the proper functioning of the compressor.

Causes of a faulty run capacitor can include electrical issues, capacitor aging or degradation, or damage due to power surges. These factors can result in issues such as the compressor not starting, the appliance not cooling properly, or unusual noises coming from the appliance.

Symptoms of a bad run capacitor may include:

• Compressor failing to start or delayed startup
• Inadequate cooling or no cooling at all
• Unusual noises, such as buzzing or clicking sounds

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

This temperature sensor is the thermistor that monitors compartment temperature and reports it to the control. Replacing a failed sensor helps restore accurate cooling and steady, reliable temperatures in your refrigerator.

• Detects refrigerator or freezer air temperature and sends a resistance signal to the control board
• Helps the control regulate compressor, evaporator fan, and air damper operation
• Also called a thermistor; critical for maintaining stable, set-point temperatures
• Failure symptoms can include sections that are too warm or too cold, erratic temperature swings, or frequent cycling

• Unplug the refrigerator before servicing
• Access location varies by model (often behind an interior cover or air duct); note routing and placement before removal
• Reinstall in the original position and route wiring in the factory path; ensure the connector is fully seated
• Restore power and allow up to 24 hours for temperatures to stabilize

The Freezer Temperature Sensor is an OEM part for LG refrigerators. This sensor monitors the temperature within the freezer compartment, sending readings to the refrigerator’s control board to maintain optimal temperature levels. It plays a crucial role in ensuring that the freezer operates efficiently and keeps food items properly frozen.

Over time, the temperature sensor can fail due to regular wear and tear, electrical issues, or exposure to extreme temperatures. A faulty sensor can lead to inaccurate temperature readings, affecting the freezer's performance.

Symptoms of a bad freezer temperature sensor include:

• Inconsistent freezer temperatures
• The freezer running continuously or not running at all
• Frost buildup in the freezer compartment
• The control board displaying error codes related to temperature

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

Note: 90 degree elbow coupler (Fits 1/4" diameter tubing on each end) For 5/16" elbow connector, order part# 4932JA3009B.

The Water Line Union is an OEM part for LG refrigerators. This component connects sections of the water line, ensuring a secure and leak-free passage of water to the refrigerator's icemaker and water dispenser. It is an elbow tube union connector, which connects two tubes at a 90-degree angle.

Causes of a bad water line union can include wear and tear from frequent use, damage from high water pressure, or deterioration due to mineral buildup and age. A compromised union can lead to water leaks and disruption in the water supply.

Symptoms of a bad Water Line Union include:

• Water leaks around the connection points
• Reduced water flow to the icemaker or water dispenser
• Puddles or moisture near the refrigerator
• Unusual noises from the water line

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