Ldf7751st Parts

The Micro Switch is an OEM part for LG dishwashers. It plays a crucial role in detecting when the door is securely closed prior to starting a cycle. This important safety feature prevents accidental exposure to hot water, detergent, and chemicals. 

Causes of a bad micro switch include degradation from years of repeated use, debris interfering with mechanisms, or damage from attempts to force or slam the dishwasher door closed.

Symptoms of a bad micro switch include:

• Cycles failing to start despite a closed door
• Hot water or steam visible escaping when running 
• The dishwasher not detecting the closed door position
• Error codes displayed related to door position sensors

This OEM LG part is also compatible with Sears/Kenmore. Replacing only when truly faulty helps ensure safe and reliable dishwasher function.
 

Fix dishwasher leaks from the bottom or poor spray action with a new sump and motor assembly. Includes circulation motor, drain pump, and gasket.

Connects household water supply to your dishwasher. Replace if hose is kinked, cracked, dry-rotted, or leaking at connections. Installs at bottom.

Mounts over the dishwasher's drying fan vent opening to shield the blower and direct airflow into the tub. Replace if cracked, damaged, or missing.

Fix unresponsive buttons, error codes, or cycles that won't start. This main control board coordinates all dishwasher functions. Moderate DIY repair.

Color: blue. It measures about 3 inches wide by 1 inch high.

Closes off the bottom of the dishwasher cabinet to protect internal components. Replace if the panel is cracked, missing, or won't stay secured.

This refrigerator damper assembly opens and closes the air passage between the freezer and fresh food sections. Replacing a sticking or broken damper restores proper airflow and more stable temperatures, helping resolve warm spots or food freezing in the refrigerator.

• Regulates cold-air flow from the freezer into the refrigerator to maintain set temperatures
• Operates a flap within the air duct under control of the appliance's control system
• Helps reduce temperature fluctuations and improve overall cooling performance

• Disconnect power before servicing
• Access from inside the fresh food compartment; remove shelves and the damper/duct cover
• Remove mounting screws and disconnect the wire harness; transfer any foam seals or clips from the old unit if needed
• Seat the gasket evenly to prevent air leaks and route wiring away from the moving flap

The Pump Motor Assembly is an OEM component specifically designed for LG dishwashers. It houses both the wash and drain pump motors integrated within a singular assembly. 

These motors work together to efficiently circulate water through spray arms during wash cycles for optimized cleaning performance. They also help drain dirty water at the end of each cycle, ensuring dishes are thoroughly rinsed.  

Symptoms of a bad pump motor assembly include:

• Inadequate or incomplete wash and rinse performances
• Water failing to drain fully after cycles
• Leaks occurring due to ineffective pumps   
• Abnormal sounds from the motor during the operation

Causes can include normal wear over time, failures in motor electronic components, or damage from foreign debris. 

Replacing the pump motor assembly with this genuine OEM LG part restores optimized wash and rinse functions. It is also compatible with Sears/Kenmore dishwashers.

Channels wastewater from your dishwasher to the household drain. Replace if cracked, kinked, clogged, or leaking to restore proper drainage during cycles.

Creates a watertight seal to prevent leaks in your dishwasher. Replace when worn or cracked to stop water damage. Confirm fit with your model number.

Replace cracked or missing dishwasher protective cover to shield internal components from dust and debris. Restores secure enclosure for wiring and sensors.

This is a common fastening nut used to secure panels, trim, or components on compatible LG appliances. It provides a simple, reliable way to hold mating parts in place and restore proper fit and function. What it does

• Secures panels, brackets, or hardware to prevent movement or vibration
• Stops rattling or loose parts caused by a missing or worn nut
• Restores proper alignment when replacing damaged or stripped fasteners
• Works where a standard threaded nut is required for reassembly

• One common nut as pictured

• Disconnect power and water before servicing the appliance
• Use the properly sized wrench or socket to avoid rounding the nut
• Do not overtighten; tighten until snug and secure per OEM torque guidance
• Replace like-for-like—thread size and type match the original

This clamp secures hoses or wiring to the appliance chassis to prevent movement, chafing, and vibration-related wear. It helps keep connections stable so hoses and wires stay in place during normal use. What it does:

• Holds water, drain or vent hoses in position to reduce strain and prevent rubbing
• Keeps wiring harnesses routed and fastened to avoid chafing or accidental disconnection
• Reduces vibration-related noise caused by loose hoses or wires
• Helps prevent hose kinks and unintended movement that can lead to leaks or intermittent electrical issues

• One clamp

• Disconnect power to the appliance before servicing; shut off water supply if working with water lines
• Remove panels as needed to access the hose or wiring route, then replace the clamp in the same orientation
• Use appropriate pliers or a screwdriver if required; do not overtighten or deform the hose or wiring
• If the original clamp was secured with a fastener, retain and reuse it only if undamaged; replace any stripped or broken hardware

This roller assembly supports the dryer drum and lets it turn smoothly to help clothes tumble evenly. Replacing a worn roller restores proper drum rotation and reduces noise and wobble during use. What it does:

• Supports the dryer drum on a stationary shaft so the drum spins freely
• Reduces squeaking, grinding, or scraping noises from a worn roller
• Helps prevent drum wobble and uneven tumbling that can affect drying
• Restores smooth rotation for improved operation and reduced wear on other components

• One roller assembly

• Disconnect power before starting and remove the dryer back panel to access the drum rollers
• Inspect adjacent parts (belt, glides, rear bearing) and replace if worn to avoid repeat failures
• Reinstall drum and panels carefully, ensuring the roller rides squarely on the shaft and the drum is aligned
• Test spin by hand before reconnecting power and running a short cycle to confirm quiet, smooth operation

Replacement rack roller wheel for dishwasher lower or upper rack assemblies. Install when original wheels are cracked, broken, or worn causing rough rolling.