Lds5540s Parts

This door latch and lock assembly secures the dishwasher door and signals the control that it's safely closed. Replacing a worn latch restores firm door closure, a reliable seal, and consistent cycle operation. What it does:

• Locks the door so cycles can start and continue without interruption
• Helps compress the door gasket for a proper, leak-resistant seal
• Sends a door-closed signal to the control
• Common symptoms: won't start with the door shut, door won't latch or pops open, cycle pauses when jostled, water leaking at the door edge

• One door latch/lock assembly

• Disconnect power at the breaker before servicing
• Remove the inner door panel to access the latch at the top of the door
• Note wire connector positions; move them to the new assembly and secure the latch
• Check latch engagement with the strike and adjust alignment if needed before reassembly

This impeller assembly spins on the dishwasher's pump to move water through the system. Replacing a worn or broken impeller restores proper water flow, helping maintain wash performance and reducing noise from the pump area. What it does:

• Moves water through the dishwasher's pump system for circulation and cleaning
• Helps maintain correct water flow and spray pressure to the spray arms
• Typical failure signs: poor cleaning or weak spray, unusual grinding/humming from the sump, or slow/no draining depending on which impeller has failed
• Physical clues include damaged/broken blades or a loose fit on the motor shaft

• 1 impeller assembly

• Disconnect power and turn off the water supply before servicing
• Remove the lower rack and filters to access the pump/sump; follow your model's service information
• Note the impeller's orientation; transfer any reusable seals or hardware from the original as required
• After reassembly, check for leaks and verify the pump spins freely before running a test cycle

Sump assembly collects and channels a washer's drained water into the drain pump to let the machine empty properly. Replacing a worn or cracked sump helps stop leaks and restores normal draining performance. What it does:

• Directs and funnels tub water to the drain pump so the washer can evacuate water.
• Prevents water from leaking under the washer when intact and properly sealed.
• Can cause poor or no draining, standing water in the tub, or drain/pump-related error codes when damaged.
• May produce unusual noises during the drain cycle if cracked or clogged.

• Disconnect power and turn off water supply before starting any repair.
• Access typically requires removing the washer's front or lower access panel; support the machine as needed.
• Inspect and replace any worn seals, hoses, or clamps when installing to ensure a watertight fit.
• After installation, run a short drain/spin cycle and check for leaks before returning the washer to regular use.

This replacement switch cam interfaces with a lever or knob to actuate a microswitch. It restores reliable on/off signaling and the positive feel/engagement of the related control or latch mechanism when the original cam wears or cracks.

• Translates lever or rotary motion into precise switch activation
• Ensures the switch travels fully to open and close as intended
• A worn or broken cam can cause intermittent operation or functions that won't start/stop as expected
• Helps bring back a defined "click" or detent at the control/lever

• Disconnect power to the appliance before servicing; turn off gas/water if applicable
• Access the switch or latch assembly; remove any knob, trim, or cover as needed
• Note the cam's orientation/indexing before removal; take photos for reference and transfer any springs/clips
• After reassembly, manually test the mechanism to ensure smooth switch actuation before restoring power

This dishwasher sump gasket seals the joint between the sump assembly and the tub to prevent leaks and maintain wash performance. Replace it if the old seal is worn, flattened, cracked, or damaged to stop water escaping beneath the unit.

• Creates a watertight seal where the sump attaches to the tub
• Helps prevent water leaks from the base of the dishwasher
• Supports proper circulation and overall wash performance
• Common failure signs: puddles under the unit, leaks during a cycle, or a visibly torn/deformed gasket

• Disconnect power and turn off the water supply before servicing
• Access the sump from inside the tub (remove lower rack, spray arm, filters, and sump cover) or from below, depending on model
• Clean mating surfaces; install the new gasket evenly without twists or gaps
• Reassemble and run a short cycle to check for leaks

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.
 

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

This blower cover mounts over the dishwasher's drying fan/vent opening to shield the blower and direct air into the tub. Replacing a damaged or missing cover helps maintain proper airflow and supports consistent drying performance.

• Protects the blower assembly from splashes and debris
• Channels air into the tub during the dry cycle
• Helps maintain the vent seal to limit moisture escape
• Common signs it's needed: poor drying results, rattling near the vent, visible cracks/warping, or moisture around the vent area

• Disconnect power and turn off water supply before servicing
• Access from inside the tub; remove racks if needed
• Note screw locations and any seal orientation; seat the cover evenly and tighten screws snugly without overtightening
• Run a short cycle to check airflow and inspect for leaks

This is a dishwasher control board. The board is located inside the machine and manages the functions of the appliance. It takes information from sensors to determine if all the appliance components are working correctly. If something is wrong with the main control board, it might have blinking lights, stuck keys, or the dishwasher may fail to run.Before replacing this part, make sure that the dishwasher has been disconnected from power. Wearing work gloves will offer extra protection during the replacement process. Remove the inner door panel to access the main control board and disconnect it from the wiring harness. Replace the wiring harness on the new component before installing it. Reassemble the rest of the dishwasher, including the inner door panel, and test it before further use.The main control board is made to be compatible with LG dishwashers and is directly provided by the manufacturer. This component is sold individually. It is an authentic OEM replacement part.

This small hardware washer sits under a specified screw or bolt to distribute clamping force and protect mating surfaces. Replace a missing, bent, or corroded washer to restore secure fastening and proper alignment of the affected assembly.

• Distributes load under a fastener head or nut for secure clamping
• Helps prevent loosening and protects surfaces during tightening
• Provides correct spacing/alignment where a washer is specified
• Replace when the original washer is missing, bent, cracked, or corroded

• Disconnect power and shut off water before servicing the appliance
• Refer to your model's parts diagram/service manual to locate and quantity
• Install in the original position/orientation under the correct fastener
• Tighten per manufacturer guidance; do not overtighten

This is the lower cover assembly for your dishwasher. It closes off the bottom of the cabinet to protect internal components and restore a clean, finished appearance. Replace if the panel is cracked, missing, or won't stay secured. What it does:

• Shields the lower chassis from dust, moisture, and impacts
• Helps contain operating noise at the base of the dishwasher
• Restores the front's finished look
• Common symptoms: broken tabs, warped or rattling panel, visible damage, missing cover

• 1 lower cover assembly

• Disconnect power and turn off the water supply before servicing
• Remove the existing lower cover's mounting screws/clips and take off the panel
• Position the new cover; align mounting holes and secure with existing hardware
• Confirm door clearance and recheck level before restoring power

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

This gasket creates a watertight seal at its designated connection point in the dishwasher, helping keep wash water contained throughout the cycle. Replacing a worn seal helps stop nuisance leaks and protects nearby cabinetry and floors. What it does:

• Forms a tight, leak-resistant seal between mating dishwasher components
• Helps keep wash water inside the tub to maintain proper cleaning performance
• Wear, flattening, or tears can allow drips or pooling during/after cycles
• Common clues: visible damage, moisture at the mounting area, or water on the floor near the unit

• 1 gasket

• Disconnect power and turn off the water supply before servicing
• Access the gasket location per your model's service information; note the old seal's orientation
• Clean the channel/mating surfaces; seat the new gasket evenly without stretching or twisting
• Reassemble and run a short test cycle to check for leaks

This guide assembly is the track that supports and directs a dishwasher rack as it slides in and out. Replace a worn or damaged guide to restore smooth rack movement, alignment, and reliable loading. What it does:

• Provides the sliding path that supports and guides the dishrack
• Maintains rack alignment to prevent derailment
• Helps the rack extend and retract smoothly without binding
• Common symptoms: rack hard to slide, tilts or falls off track, scraping/grinding noises, visible cracks or broken tabs on the guide

• 1 guide assembly

• Disconnect power and shut off water before servicing the dishwasher
• Pull the rack out and remove any end caps or stops to access the guide
• Release locking tabs or screws, note orientation, and swap the old guide with the new one
• Reinstall stops/end caps and test rack travel for smooth operation

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 parts assembly is a pre-packaged set of components used to replace a worn or damaged group of parts in one area of the appliance. Installing the matched assembly helps restore proper fit and reliable operation.

• Replaces multiple small components as a single matched set
• Restores alignment and function in the related mechanism
• Can help with looseness, rattling, poor fit, or intermittent operation
• Built to match original form and connection points for correct fit

• Disconnect power and shut off water or gas before servicing
• Use your model's exploded view/service manual to locate and orient
• Keep track of screws, spacers, and clips; transfer any reusable hardware
• Verify smooth operation before restoring power and normal use