LDF7774ST
DISHWASHER SERVICE MANUAL
NOTE
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES.
For Authorized Service Technician
MODEL : LDF8874ST LDF8764ST LDF7774ST/WW/BB
LDS5774ST
CONTENTS
CONTENTS
| 1. CAUTION......................................................................................................................... | 4 |
|---|---|
| 2. SPECIFICATIONS ........................................................................................................... | 5 |
| 3. FEATURES & TECHNICAL EXPLANATION ................................................................... | 6 |
| 4. PARTS NAME................................................................................................................ | 15 |
| 5. PROGRAM CHART | ..................................................................................................... 16 |
| 6. HOW TO DISASSEMBLE ............................................................................................ | 18 |
| 7. TROUBLE SHOOTING METHODS.............................................................................. | 27 |
| A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE...........27 | |
| B. STEAM GENERATOR ERROR MESSAGE............................................................ | 29 |
| C. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM .......................................... | 42 |
| 8. INSTALLATION INSTRUCTION ................................................................................... | 46 |
| 9. EXPLODED VIEW | .......................................................................................................53 |
| 10. WIRING DIAGRAM ........................................................................................................67 |
Table Caption: This table serves as a table of contents for a technical manual, outlining various sections and their corresponding page numbers, covering topics from safety precautions and specifications to disassembly, troubleshooting, installation, and diagrams. It provides a structured overview of the information contained within the document.
CAUTION !
- DISCONNECT POWER CORD BEFORE SERVICING
- RECONNECT ALL GROUNDING DEVICES
IMPORTANT SAFETY NOTICE !
This service information is intended for individuals possessing adequate backgrounds of electrical, electronic and mechanical experience.
Any attempt to repair this appliance may result in personal injury and property damage.
The manufacturer or seller can not be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
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2. SPECIFICATION
- SPECIFICATION
| ITEM | SPECIFICATION |
|---|---|
| Rated Voltage / Frequency | AC 120V/60Hz |
| Installation | Built-In |
| Place Settings | 14 |
| Product Dimension(in) | 23 3/4"x 24 5/8"x 33 1/2" |
| Product Weight(lbs) | 114lbs |
| Door Color | White, Black, Stainless, Black Diamond |
| Tub Material | Stainless Steel |
| Control | Electronic |
| Rated Power(Watt) | 1,350 |
| Heater Power(Watt) | 1,200 |
| Programs | 6 (LDS5774 : 7), (LDT9965 : 5) |
| Upper Rack Position | Adjustable |
| Lower Rack | 100 %Fold down |
| Water Consumption | 6.5 - 20.5 (Normal) |
| Power Consumption(kWh/year) | 258 (Nomal) |
| Operating Time (min) | 110 - 130 (Normal) |
| Fan Dry System | Yes |
| Delay Start Function | Yes |
| Auto-Off Power Switch | Yes |
| Process Monitor | Yes |
| Wash Level | 5 |
| Racks | Nylon Coating |
| Operating Water Pressure (Bar) | 20-120 (140-830kPa) |
Table Caption: This table details the specifications of a built-in dishwasher, including its electrical requirements, dimensions, capacity, materials, and various operational features like programs, drying system, and control functions. It also provides performance metrics such as water and power consumption, operating time, and water pressure.
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3. FEATURES & TECHNICAL EXPLANATION
3-1. Product Features
LARGE CAPACITY
HYBRID DRYING SYSTEM
LG dishwashers allow you to load very large items in both the upper and lower racks. The tall tub provides extra overall capacity and the clearance to accommodate large dishes. Extra large items (max. 14 in.) may be loaded in the lower rack by raising the upper rack.
This system effectively dries dishes without the use of a heating element that would increase energy consumption.
STEAM WASHING (not available on all models)
VARIABLE SPRAY SYSTEM
LIGHT TOUCH BUTTONS
Steam technology provides better cleaning performance than regular wash systems. Steam is the most energy efficient gentle care for your finest china and stemware.
Because the water spray alternates between the upper and lower racks, all of the power from the motor is directed to one rack at a time. This concentrates all the cleaning power of the motor on each rack in turn.
The light touch buttons on the control panel make selections easy and convenient.
3-2. Display Panel
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Steam Models (LDF8874, LDF8764)
Cycles
Select your desired cycle.
Auto
This cycle senses the load size, soil amount and soil toughness. This cycle is optimized to achieve the best cleaning.
Heavy
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