Samsung WA40J3000 User Manual

Fast Track Troubleshooting
Model: WA40J3000
Publication #DR WA40J3000
Production date: 5-13-15
IMPORTANT SAFETY NOTICE – “For Technicians Only” This service data sheet is
intended for use by persons having electrical, electronic, and mechanical experience and knowledge
at a level generally considered acceptable in the appliance repair trade. Any attempt to repair a
major appliance may result in personal injury and property damage. The manufacturer or seller
cannot be responsible, nor assume any liability for injury or damage of any kind arising from the use
of this data sheet.
Bulletins:
Support Information:
HELP: 1-888-751-4086 (Tech Sup. – ASC/SSD) - 1-866-894-0637 (Tech Sup. - FE/ME)
GSPN: http://gspn3.samsungcsportal.com/main.jsp
PLUS ONE: http://my.plus1solutions.net/clientPortals/samsung
TEST MODE: WITH POWER OFF - PRESS: Load Size + POWER
* Entering Test mode will delete any stored errors
1. All LED’s light up and it sends out Beep Sound when it
enters into the Test Mode, and the memory will clear
EEPROM. ( including any errors that were saved)
2. Press the Start key to bypass LED light up, it would
displays software version after on normal mode.
3. Press the Temp key, test the Water Valve.
4. Press the Temp and Start key, test the Door Lock.
5. Press the Load Size and Start key, test the Pump.
6. Turn the Jog-Dial to
1) Normal course :Display the MCU SW version.
2) Heavy Duty Course : Display the Model Option.
3) Delicates course : Test the Motor On/Off.
4) Colors/Darks course : Test the Spin.
TEST FUNCTION test PRESS
1 Water Valve Test TEMP
2 Door Lock / Unlock TEMP + Start
3 Pump Test Load Size + Start
4 Motor On / Off Set to Delicates
5 Spin Test Set to Colors/Darks
6 SW Version Set to Normal
7 Model Option Set to Heavy Duty
Activating or disable the Child Lock function
Press and hold the Temp. and Load Size
buttons simultaneously for approximately 3
seconds.
• When you activate the Child Lock function,
the “Child Lock” lamp blinks
Error Code Check
When power is on Hold TEMP 3
Seconds
Check Errors First before entering test mode

Samsung WA40J3000 Specifications

General

Brand	Samsung
Model	WA40J3000
Category	Washer
Language	English

Summary

Troubleshooting Introduction and Test Mode

Pre-Test Mode Error Check

Ensure errors are checked before entering test mode to avoid data loss.

Entering Diagnostic Test Mode

Procedure to enter the diagnostic test mode by pressing specific buttons.

Child Lock Function Operation

Instructions for activating and deactivating the Child Lock feature.

Error Code Interpretation and Specific Issues

Error Code Display Mechanism

Understanding how error codes are indicated through blinking LEDs.

Common Error Code Symptoms

Details on various error codes and their associated symptoms.

Troubleshooting Unit Running Non-Stop

Solution for units that operate continuously, often requiring PCB replacement.

Auto Temperature Control (ATC) Explanation

Explanation of the ATC system for maintaining optimal wash temperatures.

Component-Specific Troubleshooting Procedures

Water Level Sensor Diagnosis and Repair

Procedures for checking and resolving water level sensor issues.

Washing Motor Defect Troubleshooting

Steps to diagnose and repair washing motor defects.

Water Supply and Drain System Checks

Troubleshooting water supply valve and drain pump malfunctions.

Communication and Door Lock Switch Issues

Resolving communication errors and door lock switch problems.

Advanced Troubleshooting Scenarios

Water Leakage and Unbalance Code Resolution

Diagnosing and fixing water leakage and unbalance code conditions.

Mems PBA and Overflow Code Analysis

Troubleshooting Mems PBA defects and overflow conditions.

Temperature Sensor and Switch Code Issues

Addressing temperature sensor faults and switch code issues.

Internal Component Schematics and Pinouts

PCB Main and Sub Connector Pinouts

Detailed pinout information for main and sub PCBs.

SMPS Module and Connector Layout

Diagrams of the SMPS module and associated connectors.

Wiring Diagrams and Component References

Overall Schematic Diagram

Visual representation of internal wiring and component connections.

Connector Pin Assignments and Colors

Detailed pin assignments for various connectors and wire colors.