LG Dishwasher LD14AW3 Service Manual

The LG Dishwasher LD14AW3 is a high-performance built-in dishwasher featuring multiple wash cycles, energy-saving options, stainless steel interior, adjustable racks, delay start, child lock, leak protection, and advanced filtration system. This service manual provides comprehensive information for technicians including technical specifications, installation procedures, troubleshooting guides, and maintenance instructions.

1. Technical Specifications 2. Installation Instructions 3. Control Panel Overview 4. Operating Instructions 5. Error Codes 6. Troubleshooting Guide 7. Maintenance Procedures 8. Parts List 9. Wiring Diagrams 10. Safety Precautions

Technical Specifications

Key technical details and performance specifications for the LG LD14AW3 dishwasher.

Specification	Details
Model	LD14AW3
Type	Built-in Dishwasher
Capacity	14 Place Settings
Power Supply	120V AC, 60Hz
Water Pressure	20-120 psi
Dimensions (HxWxD)	33.875" x 23.875" x 24.5"
Noise Level	49 dBA
Water Consumption	2.9-4.2 gallons per cycle
Energy Consumption	0.93 kWh per cycle
Wash Cycles	Heavy, Normal, Light, Rinse Only, Glass

Installation Instructions

Proper installation procedures for the LG LD14AW3 dishwasher.

Prepare installation area: Ensure cabinet opening meets specified dimensions.
Connect water supply: Attach hot water line using 3/8" compression fitting.
Connect drain hose: Route to drain with proper loop configuration.
Electrical connection: Connect to dedicated 15-amp circuit.
Level the unit: Adjust front leveling legs for proper alignment.
Secure to countertop: Use mounting brackets provided.

WARNING! Disconnect power before installation. Ensure proper grounding and water connections to prevent damage.

Control Panel Overview

Detailed description of control panel functions and settings.

Main Controls: POWER, CYCLE SELECTION (Heavy, Normal, Light, Rinse, Glass), OPTIONS (Heated Dry, Sanitize, Delay Start), START/RESET.

Display Indicators: Cycle progress, time remaining, child lock, error codes. Settings: Temperature selection, rinse aid level, sound on/off, factory reset options.

Operating Instructions

Proper operation procedures for optimal performance.

Loading: Arrange dishes properly in upper and lower racks.
Detergent: Use recommended detergent in dispenser.
Rinse aid: Maintain proper rinse aid level for spot-free drying.
Cycle selection: Choose appropriate cycle for load type.
Start: Close door and press START button.
Completion: Wait for cycle complete indicator before opening.

Tip: Scrape food debris before loading for best results.

Error Codes

Common error codes and their meanings for troubleshooting.

Error Code	Description	Possible Cause
IE	Water inlet error	Water supply issue, inlet valve failure
OE	Drain error	Drain pump failure, drain hose clogged
FE	Water overflow	Float switch activated, overfilling
LE	Leak detected	Leakage in base pan, hose connections
DE	Door switch error	Door not closing properly, switch failure

Troubleshooting Guide

Common problems and solutions for the LD14AW3 dishwasher.

Symptom	Possible Cause	Corrective Action
Dishwasher won't start	Power supply, door switch	Check power connection, ensure door latches properly
Poor cleaning results	Spray arms, water temperature	Clean spray arms, check water heater setting
Water not draining	Drain pump, hose blockage	Check drain pump operation, clear hose obstructions
Unusual noise	Spray arm obstruction, pump issues	Remove obstructions, inspect pump assembly
Water leakage	Door seal, hose connections	Inspect door gasket, tighten hose connections

Maintenance Procedures

Regular maintenance tasks for optimal performance and longevity.

Monthly: Clean filter assembly and spray arms.
Quarterly: Check and clean door seal.
Bi-annual: Inspect water inlet valve and drain pump.
Annual: Check electrical connections and hoses.

CAUTION! Disconnect power before performing any maintenance procedures.

Parts List

Essential replacement parts for the LD14AW3 dishwasher.

Filter Assembly: Part # ADF35920501
Spray Arms: Part # 6320FR2006A (Upper), 6320FR2007A (Lower)
Door Gasket: Part # 3820JJ2001A
Heating Element: Part # 3852FR1002B
Drain Pump: Part # 3871FW1002B
Inlet Valve: Part # 3851FR1002A
Control Board: Part # 6871JJ3148A

Wiring Diagrams

Electrical schematics and connection diagrams for service technicians.

Main control board connections, motor wiring, sensor connections, power supply routing. Refer to technical documentation for complete wiring schematics and component locations.

Safety Precautions

Important safety information for installation and service.

Always disconnect power before servicing
Use proper personal protective equipment
Follow local electrical and plumbing codes
Ensure proper grounding of unit
Test for water leaks after service
Verify proper operation before returning to customer

WARNING! Failure to follow safety procedures may result in injury or equipment damage.