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SAMSUNG WW90M6 SERVICE MANUAL

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Standard Disassembly Drawings

Information Code

Diagnostic Code & Corrective Action

Problem Check Point

Main Pcb Diagram

Pcb Diagram

Inverter Pcb Diagram

Wiring Diagram

Table of Contents

Table of Contents

Safety instructions for service engineers

Concept

Specifications

Comparing specifications with existing models

Options specifications

Tools for disassembly and reassembly

Standard disassembly drawings

Information Code

Diagnostic Code & Corrective Action

Problem check point

Main PCB Diagram

Detailed descriptions of contact terminals (Main PBA)

Inverter PCB Diagram

Sub PCB Diagram

Assy PBA Service BOM

WW6850N Project name

Terminology

WASHING MACHINE DRUM TYPE

Basic Model : WW90M6

(WW6800M PROJECT)

Model Name : WW22N6850Q*

(WW6850N PROJECT)

Model Code : WW22N6850QX/A2

(WW6850N PROJECT)

SERVICE Manual

WASHING MACHINE (DRUM)

CONTENTS

1. Safety Instructions
2. Features and Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference

CONTENTS

Table Caption: This table is a table of contents for a technical manual, outlining sections on safety, features, disassembly, troubleshooting, circuit diagrams, wiring, and references. It lists chapter and sub-chapter titles along with their corresponding page numbers.

1. SAfETy INSTRuCTIONS

1-1. SAfETy INSTRuCTIONS fOR SERvICE ENgINEERS

• Make sure to observe the following instructions to operate the product correctly and safely and prevent possible accidents and hazards while servicing.
• Two types of safety symbols, Warning and Caution, are used in the safety instructions.

Hazards or unsafe practices that may result in severe personal injury or death.

Hazards or unsafe practices that may result in minor personal injury or property damage.

BEfORE SERvICINg WARNINg

• (When servicing electrical parts or harnesses) Make sure to disconnect the power plug before servicing.
• 4 Failing to do so may result in a risk of electric shock.
• Do not allow consumers to connect several appliances to a single power outlet at the same time.
• 4 There is a risk of fire due to overheating.
• When removing the power cord, make sure to hold the power plug when pulling the plug from the outlet.
• 4 Failing to do so may damage the plug and result in fire or electric shock.
• When the washing machine is not being used, make sure to disconnect the power plug from the power outlet.
• 4 Failing to do so may result in result in accidental operation of the washing machine.
• Do not place or use gasoline, thinners, alcohol, or other flammable or explosive substances near the washing machine.
• 4 There is a risk of explosion and fire caused from electric sparks.

Safety Instructions _ 1

WHILE SERvICINg

• Check if the power plug and outlet are damaged, flattened, cut or otherwise degraded.
• 4 If faulty, replace it immediately.

Failing to do so may result in electric shock or fire.

• Completely remove any dust or foreign material from the housing, wiring and connection parts.
• 4 This will prevent a risk of fire due to tracking and shorts in advance.
• When connecting wires, make sure to connect them using the relevant connectors and check that they are completely connected.
• 4 Do not use tape instead of the connectors, it may cause fire due to tracking.
• Make sure to discharge the PBA power terminals before starting the service.
• 4 Failing to do so may result in a high voltage electric shock.
• When replacing the heater, make sure to fasten the nut after ensuring that it is inserted into the bracket-heater.
• 4 If not inserted into the bracket-heater, it touches the drum and causes noise and electric leakage.

AfTER SERvICINg WARNINg

• Check the wiring.
• 4 Ensure that the wiring can not be damaged by any sharp edges or moving parts.
• Check for any water leakage.
• 4 Perform a test run for the washing machine using the standard course and check whether there is any water leakage through the floor section or the pipes.
• Do not allow consumers to repair or service any part of the washing machine themselves.
• 4 This may result in personal injury and shorten the product lifetime.
• 2 _ Safety Instructions

BEfORE SERvICINg