Parts for Lg LFX21975ST/01: Case 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 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 is a genuine replacement screw used to secure appliance panels and components. It restores proper fastening so panels and assemblies stay aligned and operate safely. What it does:

• Fastens panels, brackets, and small assemblies to maintain structural integrity
• Replaces missing or stripped screws that cause rattling or loose parts
• Helps stop vibration-related noise when used in its original mounting locations
• Matches the OEM fit to ensure proper alignment and clearance

• Use the correct screwdriver or bit to avoid stripping the head
• Tighten until snug; do not overtighten to prevent thread or component damage
• Disconnect power to the appliance before working on electrical components
• Replace all matching fasteners for even fit

This hinge bolt secures the hinge to the appliance cabinet or door, keeping alignment true and motion smooth. Replacing a stripped, missing, or corroded bolt helps restore proper door operation and reliable closing.

• Fastens the hinge to support and stabilize the door
• Helps maintain alignment for smooth opening and closing
• Replaces damaged, stripped, or missing hardware

• Disconnect power to the appliance; shut off water supply if applicable
• Support the door to prevent strain on remaining hardware; enlist a second person if needed
• Note the order/orientation of any shims or washers and transfer them during reassembly
• Start threads by hand to avoid cross-threading; tighten securely without overtightening

This is a genuine replacement mounting screw designed to secure appliance panels and internal components, restoring proper fit and stopping movement. Fits specified LG assemblies where the original screw is missing or damaged. What it does:

• Secures panels, brackets, or small components to prevent rattling and misalignment
• Restores proper attachment when original screw is stripped, lost, or broken
• Helps eliminate vibration noise caused by loose fasteners
• Matches OEM fit and thread form for reliable reassembly

• One mounting screw

• Disconnect power and water before beginning any service
• Use the correct driver and do not overtighten to avoid striping threads or cracking components
• Keep removed screws organized to ensure correct replacement locations
• If threads are damaged, replace mating clip or insert as recommended by OEM

This hinge bolt secures the hinge to the appliance cabinet or door, keeping alignment true and motion smooth. Replacing a stripped, missing, or corroded bolt helps restore proper door operation and reliable closing.

• Fastens the hinge to support and stabilize the door
• Helps maintain alignment for smooth opening and closing
• Replaces damaged, stripped, or missing hardware

• Disconnect power to the appliance; shut off water supply if applicable
• Support the door to prevent strain on remaining hardware; enlist a second person if needed
• Note the order/orientation of any shims or washers and transfer them during reassembly
• Start threads by hand to avoid cross-threading; tighten securely without overtightening

This is a replacement mounting bolt used to secure appliance components and assemblies, restoring proper fit and reducing movement that can cause noise or misalignment. Use when a factory fastener is missing or damaged. What it does

• Fastens panels or internal components to maintain correct alignment and structural integrity.
• Prevents vibration-related noise and rubbing by holding parts securely in place.
• Restores secure connections after disassembly for service or repair.
• Helps eliminate intermittent movement that can lead to wear or leaks when a fastener is compromised.

• Use the correct bolt length and thread engagement for the application; do not force a mismatched fastener.
• Tighten to snug, manufacturer-specified torque when available; avoid overtightening to prevent stripping.
• Inspect surrounding parts (washers, nuts, threaded holes) and replace if worn or damaged.
• Disconnect power and follow all safety precautions before servicing the appliance.

This replacement mounting screw secures appliance panels and components to restore proper fit and reduce rattling or loose parts. Simple, direct replacement when a worn or missing screw causes loose panels or intermittent contact. What it does:

• Fastens panels, brackets, or small components to maintain proper alignment and reduce vibration
• Prevents loose trim, covers, or assemblies that can cause noise or improper sealing
• Replaces missing, stripped, or corroded screws that interfere with reliable operation
• Works wherever the OEM screw specification is required for secure mounting

• Use the matching screw hole and tighten until snug; avoid over-torquing to prevent stripping
• Disconnect power to the appliance if accessing electrical or moving parts near the work area
• If multiple screws are missing or panels are damaged, replace all fasteners for even support

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

This lower cover assembly protects the appliance's lower cabinet area and helps keep internal components free from debris while supporting proper airflow. It restores the unit's finished appearance and helps prevent damage to wiring and controls. What it does:

• Shields lower cabinet components from dust, lint and accidental contact
• Helps maintain correct airflow routing under the appliance
• Prevents foreign objects from reaching motors, pumps or wiring
• Re-establishes the finished exterior where the lower panel is missing or damaged

• One lower cover assembly

• Disconnect power (and water, if applicable) before starting work
• Remove any exterior panels or trim as needed; basic hand tools required
• Handle edges carefully; wear gloves to avoid cuts
• Secure all fasteners; replace any damaged clips or screws

This duct assembly routes internal airflow in the appliance, replacing damaged or worn vent tubing to restore proper air movement. It helps reduce air leaks and airflow-related performance issues when the original duct is compromised. What it does:

• Channels blower air from the fan housing to the exhaust path to maintain proper ventilation.
• Replaces collapsed, torn or disconnected ducting that can cause poor airflow.
• Addresses symptoms such as reduced drying/cooling performance, longer cycles, or warm cabinet air.
• Helps eliminate drafty or noisy airflow caused by gaps or damaged duct sections.

• Disconnect power (and turn off gas supply for gas appliances) before beginning service.
• Access may require removing rear or lower access panels; keep hardware organized for reassembly.
• Inspect and replace any damaged clamps, seals or gaskets during installation for a proper seal.

This duct assembly routes internal airflow in the appliance, replacing damaged or worn vent tubing to restore proper air movement. It helps reduce air leaks and airflow-related performance issues when the original duct is compromised. What it does:

• Channels blower air from the fan housing to the exhaust path to maintain proper ventilation.
• Replaces collapsed, torn or disconnected ducting that can cause poor airflow.
• Addresses symptoms such as reduced drying/cooling performance, longer cycles, or warm cabinet air.
• Helps eliminate drafty or noisy airflow caused by gaps or damaged duct sections.

• Disconnect power (and turn off gas supply for gas appliances) before beginning service.
• Access may require removing rear or lower access panels; keep hardware organized for reassembly.
• Inspect and replace any damaged clamps, seals or gaskets during installation for a proper seal.

This lamp cover is the replacement light lens that protects and diffuses the refrigerator's interior lamp, restoring even illumination and preventing direct bulb contact. Fits the original mounting for a clean, finished appearance. What it does:

• Protects the interior lamp from spills, splashes, and incidental contact
• Diffuses light for more even interior illumination
• Helps prevent direct exposure to the lamp bulb
• Restores a damaged, cracked, or yellowed lens to improve visibility

• One lamp cover / light lens

• Turn off power or unplug the appliance before replacing the lamp cover to avoid electric shock
• Handle the cover carefully to avoid cracking; use a soft cloth to seat into mounting tabs
• Remove and retain any fasteners or clips from the old cover for reinstallation if applicable
• Replace the bulb before seating the new cover

This motor overload protector helps prevent motor overheating by cutting power if the motor draws excessive current or gets too hot. It restores normal operation once the motor cools, helping protect the main motor from heat-related damage. What it does:

• Senses excessive motor current/heat and interrupts power to stop the motor from overheating
• Can prevent burning or further damage when a motor is overloaded or stuck
• Common symptom: washer motor hums but won't start or spins intermittently
• Works as a protective component in the washer's motor circuit

• One overload (motor protector) as shown

• Disconnect power before accessing or replacing the overload
• Access the motor area from the rear or bottom panel per your model's service instructions
• Handle terminals carefully and reconnect wires to the correct terminals
• If symptoms persist after replacement, test the motor and related components.

This PTC thermistor assembly feeds temperature feedback to the control so the appliance can monitor conditions and run sensor-based cycles correctly. Replacing a failed sensor restores reliable automatic operation and prevents errors that lead to inconsistent results.

• Detects temperature changes and sends a resistance signal to the main control for sensor/auto functions
• Helps regulate time and power during sensor-driven cycles for consistent performance
• Failure symptoms can include "sensor" errors, cycles ending too soon or running too long, or inconsistent results
• In some models, a bad sensor may prevent sensor modes from starting

• Disconnect power before servicing; microwaves can retain dangerous high voltage—discharge the capacitor before touching internal components
• Access and mounting location vary by model; commonly found behind the grille or near the control in the air duct path
• Route the harness exactly as original; keep wiring away from sharp edges and hot areas
• Avoid touching the sensing tip; ensure all connectors are fully seated

A small retaining pin used to secure moving parts and keep components aligned for smooth operation. Replacing a worn or broken common pin can stop rattling and restore proper fit between linked parts. What it does:

• Holds or aligns two parts together so they move correctly and stay in position
• Helps prevent rattling, looseness, or parts slipping out of place
• Works as a simple mechanical fastener—no electronics involved

• One common pin

• Disconnect power to the appliance before beginning any service
• Keep track of small parts; lay out components in order to aid reassembly
• May require removal of trim or a hinge/retainer to access the pin—use basic hand tools
• If the pin is difficult to seat, do not force; inspect mating parts for damage

The Drier Assembly is an OEM part for LG refrigerators. This part is responsible for removing moisture and contaminants from the refrigerant. This ensures that the refrigerant circulates effectively and efficiently, preventing damage to other components and maintaining the refrigerator's cooling performance.

Causes of a bad Drier Assembly can include contamination from moisture entering the refrigerant lines, blockages from debris or particulates, and general wear and tear over time that reduces its effectiveness.

Symptoms of a bad Drier Assembly include:

• Reduced cooling efficiency or warm refrigerator temperatures
• Unusual noises from the refrigeration system
• The compressor running continuously or cycling frequently
• Frost buildup on the evaporator coils due to improper refrigerant flow

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

The Defrost Sensor Assembly is an OEM part for LG refrigerators. This integral component plays a key role in monitoring the temperature within the refrigerator's freezer section, particularly during the defrost cycle. It ensures that the defrost system activates and deactivates at appropriate temperatures to maintain efficient operation and prevent frost buildup. 

Symptoms of a faulty defrost sensor assembly include:

• Excessive frost or ice accumulation in the freezer
• Refrigerator or freezer section experiencing temperature fluctuations
• Defrost cycle not running or running too frequently

Causes of defrost sensor failure often involve damage from moisture or ice, electrical faults, or degradation over time, which can lead to inaccurate temperature readings and improper defrost cycle regulation.

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

The Door Switch is an OEM part for LG refrigerators. It is located near the door hinge and is activated by the door's movement. When the door is closed, the switch is engaged, allowing the interior light to turn off and other functions to operate normally. When the door is opened, the switch is released, triggering the interior light to turn on and potentially activating other features, such as the ice dispenser or cooling system.

Causes of a faulty door switch can include wear and tear over time, mechanical damage from excessive force, or electrical issues.

Symptoms of a bad door switch may include:

• The interior light not turning on when the door is opened
• The interior light remains on when the door is closed
• Issues with the dispenser or other functions associated with the door switch

The Fan Motor is an OEM part for LG refrigerators. It is essential for circulating air throughout the refrigerator and freezer compartments, ensuring that the temperature is evenly distributed and maintained at the set levels. This motor powers the fan that helps to cool the evaporator coils and dissipate heat, which is vital for the appliance's cooling efficiency.

Symptoms of a failing Fan Motor include:

• The refrigerator not cooling adequately
• Unusual noises coming from the refrigerator, such as humming or buzzing
• Ice buildup in the freezer compartment due to poor air circulation
• The refrigerator cycling on and off more frequently

Causes of a bad fan motor can include wear and tear over time, obstructions in the fan blades, or electrical issues such as faulty wiring or a malfunctioning capacitor.

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

The Refrigerator Door Switch is an OEM part for LG refrigerators, designed to signal the control system when the door is open or closed. This small but essential component plays a critical role in the overall operation of your refrigerator, including the activation of interior lights and the control of cooling functions. 

Over time, the door switch can fail due to mechanical wear, accidental damage, or a buildup of debris that may prevent it from functioning correctly. 

Symptoms of a bad Refrigerator Door Switch include:

• Interior lights not turning on or off appropriately with the door's position
• The refrigerator running longer than necessary, potentially leading to increased energy bills
• Unusual fluctuations in temperature inside the fridge, affecting food preservation

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

This is a replacement mounting bracket that secures internal appliance components to the cabinet frame, restoring proper alignment and support for moving parts. It helps reduce vibration and prevents loose or sagging assemblies. What it does:

• Provides a stable mounting point for internal components to maintain correct positioning
• Helps stop rattling, knocking, or vibration caused by loose fittings
• Restores support for panels, assemblies, or mechanical linkages that rely on the bracket
• Useful when original bracket is bent, cracked, or otherwise damaged

• Follow manufacturer service manual for correct placement and fastener torque
• Use proper tools and retain all screws/fasteners; replace damaged fasteners as needed
• Disconnect power before accessing internal components to avoid shock or injury

The Ice Maker Cooling Fan Assembly is an OEM replacement part for LG refrigerators. The purpose of this component is to circulate the air that goes into the ice compartment so that the water freezes in the ice maker to make the ice. It also runs intermittently to ensure the ice that has been made remains frozen.

Causes of a bad cooling fan assembly can include failure of the electric motor or fan blade over time due to prolonged use. Bearing wear is also common with extended operation of moving parts like the fan blade.

Symptoms of a bad cooling fan assembly include:

• Inconsistent or infrequent ice production  
• Warm spots developing within the freezer compartment
• Vibrations, rubbing, or grinding noises from the fan motor area
• Inefficient freezing of items stored in the freezer

Replace yours today with this genuine OEM LG cooling fan assembly to restore optimized temperature control. 

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

The Freezer Defrost Heater is an OEM part for LG refrigerators. It plays a crucial role in the defrost system by melting any frost or ice buildup on the evaporator coils. This helps maintain the efficiency of the cooling system and ensures the freezer operates properly.

Over time, the defrost heater can wear out or fail due to continuous heating and cooling cycles, electrical issues, or physical damage. Causes of a bad defrost heater include burnouts, electrical faults, and accumulation of frost that hinders its functionality.

Symptoms of a bad freezer defrost heater include:

• Excessive frost buildup in the freezer
• The freezer not maintaining the set temperature
• The refrigerator running continuously or cycling more frequently
• Water leaks inside the freezer from melting ice

This OEM LG part is also compatible with 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 fan motor assembly circulates air across the evaporator coils to keep temperatures even inside the refrigerator. Replacing a worn or noisy motor restores proper airflow for consistent cooling performance.

• Drives the evaporator fan to move chilled air through the cabinet and vents
• Helps maintain stable temperatures and reduces frost from stagnant air
• Common symptoms: weak or no airflow, loud or intermittent fan noise, temperature fluctuations, refrigerator section warmer than expected
• Failures may result from worn bearings, moisture exposure, or an open motor winding

• Disconnect power before servicing; wear cut-resistant gloves and eye protection
• Access the fan behind the interior rear panel; remove shelves/drawers as needed and avoid bending evaporator fins
• Note wire connector orientation and mounting order; transfer any reusable hardware from the original assembly as needed
• After reassembly, verify the fan spins freely and confirm operation before reloading the compartment

This cover assembly protects and diffuses the interior lamp so the appliance is evenly lit while keeping the bulb shielded from food and debris. It restores proper lighting visibility inside the compartment. What it does:

• Protects the interior lamp from spills, impacts, and contaminants
• Diffuses light for more even illumination of the compartment
• Helps prevent direct contact with the bulb for safer operation
• Commonly replaces cracked, discolored, or missing lamp covers that reduce light output

• Disconnect power to the appliance before servicing to avoid shock
• Remove and replace the cover gently; avoid excessive force that can crack the lens
• Handle and dispose of any broken plastic safely; inspect the lamp/bulb for damage
• After installation, restore power and verify the lamp operates and the cover sits securely

The Water Line Connector is an OEM replacement part for LG refrigerators. It is responsible for connecting the water supply line from the home plumbing to the refrigerator's internal water distribution system, allowing for ice and water dispenser functionality. 

Causes of a bad water line connector can include cracking, leaks, or deterioration of the connector material over time due to regular water pressure and temperature fluctuations. Connectors may also become damaged if exposed to impact.

Symptoms of a bad water line connector include:

• Leaks at the connection point between the line and refrigerator
• Loose, slipping, or disconnected water line fitting  
• Reduced water pressure or no water flow to the dispenser
• Error codes related to water flow from the refrigerator diagnostics

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

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.

The Refrigerator Temperature Sensor is an OEM part for LG refrigerators. This sensor monitors the temperature inside the refrigerator and communicates with the control board to maintain the optimal cooling environment.

Common causes of failure include wear and tear over time, electrical issues, or exposure to moisture. A malfunctioning sensor can lead to inaccurate temperature readings, resulting in improper cooling or freezing.

Symptoms of a bad refrigerator temperature sensor include:

• Inconsistent refrigerator or freezer temperatures
• Food spoiling faster than usual
• Refrigerator running continuously or not running at all
• Error codes displayed on the control panel

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

The water filter cover 3550JD1128E attaches over the water filter and protects the water filter and head.

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.