Lfx28978sb100 Parts

This sub power control board assembly controls and routes electrical power and control signals for the appliance, restoring electronic control when the original sub-PCB fails. Use this board to address power and control-related faults. What it does:

• Regulates and routes power to motors, valves, sensors and other control circuitry.
• Processes low-voltage control signals from the main board, user interface and sensors.
• Common symptoms linked to a failing board: no power or no response, intermittent operation, error codes or unresponsive controls.
• Replacing the faulty sub control board can restore normal electronic operation and command response.

• Disconnect the appliance from power before beginning any service.
• Handle the PCB by the edges and use proper ESD precautions to avoid static damage.
• Verify all connectors are fully seated and wiring matches the replacement before reapplying power.

This main control board is the appliance's central electronics that manages cycles, timing and sensor inputs so the unit operates correctly. Replace a failed board to restore control and normal electronic function. What it does:

• Interprets user commands and runs selected cycles
• Controls motors, valves, heaters, and sensors through relay/output signals
• Processes sensor feedback to regulate timing and operation
• Can cause no-start, unresponsive controls, error codes, or erratic behavior when faulty

• Disconnect power before starting; risk of shock or further damage if energized
• Handle by the edges and avoid static discharge—use an anti-static wrist strap if available
• Compare part numbers and connector layout to the old board before installing
• After install, restore power and run a diagnostic or short cycle to verify operation

This small stopper installs in the refrigerator to limit the travel of a moving component and keep it securely in place. Replacing a broken or missing stopper prevents over-extension and helps maintain smooth, aligned operation.

• Limits the range of motion for a door, bin, or drawer to prevent over-opening or accidental removal
• Helps keep interior components aligned and operating smoothly
• Replace if cracked, missing, or deformed
• Common symptoms: drawer or bin slides out too far, door swings past normal range, or a broken plastic stop is found

• Disconnect power before servicing; remove or support the affected bin/drawer/door
• Note the old stopper's orientation and location before removal
• Transfer and reuse any original screws or clips if applicable
• Snap or fasten the new stopper in place and test for smooth movement

This replacement power control board assembly restores the electronic control for the appliance, allowing regulated power and signal management for proper operation. It replaces a failed sub control board to help recover normal function. What it does:

• Regulates power distribution and control signals to the appliance's subsystems
• Replaces a failed sub PCB that can cause intermittent or total loss of electronic control
• Resolves symptoms such as no power to circuits, unresponsive controls, or erratic operation
• Works with the appliance's main control to restore coordinated electronic control

• Disconnect power (unplug or shut off breaker) before beginning service
• Take photos of wire locations and connector orientation before disconnecting
• Handle the board carefully; avoid static discharge and do not touch components

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

This is a customized screw used to secure components in LG appliances. It replaces a worn or missing fastener to restore proper assembly and reduce rattling or loose panels. What it does:

• Secures panels, brackets, or small components in the appliance chassis
• Helps stop vibration-related noise caused by loose fasteners
• Replaces missing or stripped screws to restore safe, stable assembly
• Matches OEM fit for the specific mounting point it was made for

• Use the correct screwdriver or driver bit to avoid stripping the head
• Tighten until snug; avoid over-torquing which can damage threads or parts
• Disconnect power and follow appliance-specific safety procedures before servicing

This ice maker gear drives the ejector blades that push ice from the tray into the bin. Replacing a worn or broken gear restores proper harvest cycles and stops grinding or slipping during ejection. What it does:

• Turns the ice maker ejector to release ice cubes during the harvest cycle.
• Stops or reduces grinding noises and slipping when the gear teeth are stripped or damaged.
• Helps restore regular ice production when the ejector no longer rotates.
• Works as the replacement driven gear in compatible LG ice maker gear trains.

• Disconnect power before servicing the ice maker to avoid shock or injury.
• Remove the ice maker assembly to access the gear; follow OEM instructions for disassembly.
• Inspect the mating gear, motor shaft, and ejector assembly for wear—replace additional damaged parts as needed.
• Use the matching part number to ensure fit.

This slide rail is a replacement drawer guide that restores smooth, stable drawer movement and helps prevent binding or sagging. Designed to match the OEM fit so drawers open and close reliably. What it does:

• Guides and supports the appliance drawer for smooth sliding motion
• Replaces worn or damaged rails that cause sticking, sticking intermittently, or uneven travel
• Helps prevent drawer tilt or sag when loaded
• Restores proper alignment for secure closing

• Disconnect power to the appliance before beginning any work
• Remove the drawer per your model's service instructions to access the rail
• Use basic hand tools (screwdriver/driver) to remove and replace the rail; keep fasteners for reuse
• Align the rail carefully, slide the drawer to test operation, and verify smooth movement before returning the appliance to service

This condenser assembly replaces the condenser wiring and support used in compatible refrigerators to restore proper condenser connections and airflow. It helps re-establish electrical routing and secure mounting so the cooling system can run reliably. What it does:

• Replaces damaged or corroded condenser wiring and associated mounting hardware
• Restores electrical connection between condenser components and the control circuitry
• Helps resolve symptoms such as cooling loss, intermittent compressor operation, or visible wiring damage
• Maintains proper condenser positioning for adequate airflow and heat dissipation

• Disconnect power and unplug the appliance before starting work
• Inspect surrounding components (fan, compressor, terminals) for related damage
• Use manufacturer-recommended torque and routing to avoid pinched wires

This PTC cover is the protective housing that shields a PTC sensor/assembly from debris and physical damage, helping maintain reliable sensor performance and prolong component life in the appliance. What it does:

• Protects the PTC sensor or PTC assembly from dust, impact, and accidental contact
• Helps prevent shorting or intermittent sensor signals caused by contaminants
• Supports proper positioning and mounting of the PTC component
• Can help address symptoms such as visible sensor damage, exposed wiring, or intermittent operation related to a compromised sensor housing

• Disconnect power to the appliance before starting any repair
• Remove the outer panel(s) as needed to access the PTC location; handle surrounding wiring and components carefully
• Replace only with the correct OEM cover to ensure proper fit and protection

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 lower ice bank door hinge secures and pivots the freezer's ice bank door so it opens and closes smoothly, helping maintain proper sealing and ice dispensing alignment. Designed as a direct replacement for the original hinge. What it does:

• Supports the ice bank door, providing a stable pivot point for opening and closing
• Keeps the ice bank door aligned to maintain an effective seal and proper operation
• Prevents sagging or binding that can interfere with ice dispensing or door function
• Restores correct door movement after hinge wear or damage

• Use basic hand tools; keep power to the appliance off and unplug before starting
• Handle the ice bank and door carefully to avoid damaging the trim or ice chute
• Reuse original fasteners only if undamaged; replace damaged screws to ensure secure mounting

A single mounting screw used to secure panels, brackets, or components in place so assemblies stay stable during normal appliance use. Simple replacement for stripped or missing fasteners. What it does:

• Secures panels, trim, brackets or interior components to prevent rattling or movement
• Restores proper fit and alignment after service or accidental damage
• Helps reattach parts removed during maintenance or part replacement
• Small, durable fastener designed for appliance interior mounting applications

• Use the correct screw driver or bit to avoid stripping the head
• Match screw length and thread engagement to the original location before tightening
• Tighten until snug—do not overtighten to avoid cracking plastic or damaging threads
• Disconnect power and follow appliance safety procedures before performing repairs

This holder is a small mounting bracket used to secure internal components in place, helping keep parts aligned and stable for reliable operation. It provides a direct, OEM-compatible replacement to restore proper fit and function. What it does

• Secures and supports nearby components to prevent shifting or vibration.
• Restores proper alignment where a worn or broken holder causes rattling or loose parts.
• Helps maintain normal operation by keeping assemblies seated correctly.
• Works behind panels or inside assemblies where a dedicated bracket is required.

• One holder/mounting bracket as shown.

• Installation generally requires removing the panel or access cover where the holder is located.
• Use proper fasteners shown in your appliance; replace any damaged screws or clips as needed.
• Disconnect power before servicing electrical appliances to reduce shock risk.

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

A replacement refrigerator shelf assembly that restores a level, stable storage surface for leftover and fresh foods. Designed to replace a damaged, cracked, or worn shelf so you can safely store items and keep the interior organized. What it does:

• Provides a sturdy, level surface for food and containers to sit on
• Replaces cracked, chipped, or shattered glass or a warped shelf frame
• Stops items from sliding or falling when a shelf edge is broken
• Helps restore proper spacing and visibility inside the refrigerator

• Remove food and containers before removing the old shelf
• Wear cut-resistant gloves when handling broken or glass shelves
• Support the shelf while lifting out and during installation to avoid dropping
• Verify fit and seating into the shelf tracks; do not force—confirm alignment before applying weight