Parts for Lg LFX21971ST02: Icemaker 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

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 small retaining clip secures its mating component within the refrigerator assembly, keeping parts properly seated and reducing vibration. Replacing a damaged or missing clip helps restore a snug fit and reliable operation of the attached piece.

• Holds the designated part firmly in place within the assembly
• Maintains proper alignment to prevent movement or rattling
• Helps ensure panels, ducts, or lines stay secured during use
• Symptoms can include loose or sagging parts, vibration noises, or components that won't stay attached

• Disconnect power; if working near the water system, also shut off the water supply
• Note the original orientation and placement before removal
• Fully seat the mating component, then press the new clip into place without forcing
• Check operation before reassembly

The Clip is an OEM part for LG refrigerators. This clip secures the water tube in place, preventing it from moving or becoming disconnected. It plays a crucial role in maintaining the proper flow of water to the ice maker and water dispenser.

Causes of a bad water tube clip can include physical damage, wear and tear from regular use, or brittleness due to temperature fluctuations. If the clip fails, it can result in leaks or disconnections, disrupting the water supply.

Symptoms of a bad water tube clip include:

• Water leaks inside or outside the refrigerator
• The water tube becoming loose or disconnected
• Reduced or no water flow to the ice maker or water dispenser

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

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.

This water tube routes drinking water from the refrigerator's supply to the dispenser/ice system, restoring proper water flow for dispensing and ice-making. Use when water flow is reduced, leaking, or the tube is cracked or clogged. What it does:

• Carries potable water between the internal components (valve, dispenser, ice maker) for dispensing and ice production
• Replaces cracked, split, or clogged tubing that causes leaks or poor water flow
• Helps stop visible leaks and restores consistent dispenser flow when tubing is the fault
• Compatible with systems that use a molded plastic water line rather than braided or metal tubing

• Turn off water supply and unplug the appliance before beginning work
• Drain residual water from the line and catch any spillage with a towel or small container
• Inspect fittings and seals; replace O-rings or clamps if damaged

The Water Tube Connector is an OEM part for LG refrigerators. It is specifically designed to securely connect the water supply tubes in the refrigerator. The connector ensures a proper seal, preventing leaks and ensuring a consistent water supply to your refrigerator.

Causes of a bad water tube connector can include wear and tear over time, exposure to water pressure, or damage due to accidental impact or mishandling. These factors can result in leaks, water flow disruptions, or a loose connection, leading to issues with water dispensing or ice making.

Symptoms of a bad water tube connector may include:

• Water leaks at the connection point
• Reduced or intermittent water flow
• Complete water flow blockage

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

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.

The Water Line is an OEM part for LG refrigerators, designed to supply water to the ice maker and water dispenser. Made from durable materials to withstand water pressure and prevent leaks, this water line is essential for access to clean, filtered water at all times. Note: color of the water tube may be different from original. Tube is 5/16" diameter

Symptoms of a bad Water Line include:

• Leaking of water at the connection points or along the tubing.
• A noticeable decrease in water flow to the dispenser or ice maker.
• A bad taste or odor of the water and ice

Causes of failure can range from physical damage, such as kinks or punctures, to wear and tear over time leading to brittleness or weakening of the material. These issues can compromise the integrity of the water supply, affecting both the quality and safety of the water and ice provided by your refrigerator.

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

The Reservoir Water Supply Line is an OEM part for LG refrigerators. This component is essential for delivering water from the reservoir to the dispenser and ice maker, ensuring a steady and reliable flow.

Symptoms of a bad Reservoir Water Supply Line include:

• Leakage of water at connection points or along the line.
• Reduced water flow to the dispenser or ice maker.
• Unusual tastes or odors in the dispensed water.
• Visible signs of wear, such as kinks or brittleness.

Causes of a bad water supply line can include physical damage from bending or pinching, chemical degradation from exposure to contaminants, or blockages due to sediment or scale buildup.

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

The Water Inlet Valve is an OEM part for LG refrigerators. It controls the flow of water into the refrigerator for the ice maker and water dispenser, ensuring the proper functioning of these features.

You should replace the water inlet valve if it becomes clogged, damaged, or fails to operate correctly. Causes of a bad water inlet valve can include mineral deposits from hard water, electrical issues, or wear and tear from continuous use. 

Symptoms of a bad water inlet valve include:

• The ice maker not producing ice
• The water dispenser not dispensing water
• Leaking water from the valve or connected tubing
• Unusual noises when the valve is operating

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

The Water Valve Assembly is an OEM part for LG refrigerators. It is essential for controlling the flow of water to the ice maker and the water dispenser. This solenoid-operated valve responds to signals from the refrigerator’s electronic control system to accurately manage the release of water, ensuring efficient operation and reliability.

Symptoms of a bad Water Valve Assembly include:

• The ice maker not producing ice or producing very small cubes
• The water dispenser not functioning or dispensing a trickle instead of a steady flow
• Water leaking from the refrigerator

Causes of a bad water valve assembly can stem from mineral deposits that clog the valve, electrical failures that impair the valve’s operation, or wear and tear from normal usage leading to leaks or malfunctions.

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

Note: Flow meter is not needed on all models, remove if necessary. Redesigned single valve replaces older dual solenoid valves. Wiring harness is included. Located behind the refrigerator.

This cover cap is a small plastic trim piece that protects exposed fasteners and improves the appliance's appearance. It snaps into place to hide mounting posts and help prevent snags or debris buildup. What it does:

• Covers and protects exposed screws, posts, or fasteners for a finished look
• Prevents lint, dust, and debris from collecting around the mounting point
• Reduces the chance of fabric snags or contact with sharp edges
• Restores worn or missing trim for improved cosmetics

• Disconnect power to the appliance before starting any service that exposes electrical components
• Usually installs by snapping over the post or press-fitting into the trim opening — no special tools required
• If needed, remove adjacent trim pieces to gain access, then reinstall trim in reverse order
• Inspect surrounding mounting hardware for damage and replace if necessary

This holder is a small mounting bracket that secures a mating component in place inside the appliance. Replacing a cracked or missing holder restores a firm, rattle-free fit and proper alignment.

• Provides a stable mount for the designated part
• Prevents shifting and vibration that can cause noise or premature wear
• Common signs of failure: broken tabs, stress cracks, or the attached part sagging or falling out
• When damaged, the connected component may be loose, noisy, or misaligned

• Disconnect power; if working near water tubing, also shut off the water supply
• Note the original orientation and mounting points; take a photo before removal
• Reuse existing fasteners and avoid overtightening to prevent cracking the plastic
• Ensure the attached component is secure and clears any moving parts before restoring power