Samsung WF42H5600 User Manual

Fast Track Troubleshooting
Model: WF42H5600
Publication #My WF42H5600 Production Date 11/25/14
Revision MY 12/08/14
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
**With the Power On**
**Test Mode** With the Power Off
SERVICE MODE: WITH POWER ON - PRESS: Soil Level + Delay End
TEST FUNCTION PRESS Enter or Exit
1 Cycle Count Temp
2 Version Soil Level
3
Board Input Test (Move Jog
dial to check LED) (See Chart
at bottom)
Delay End
4
DIAGNOSTIC ERROR CODE
CHECK (See Below)
SPIN - Turn dial either clockwise (c.w) or
counter c.w.
5
SPIN TEST ( RPM) (ref:
NB***)
Delay End + Temp for 3sec. (To Pause: press
- START/PAUSE)
QUICK TEST MODE:WITH POWER OFF - PRESS: Spin + Soil Level + POWER
NB*** Spin Test will NOT test Hall Sensor in this mode. NOTE: ALWAYS
remember to offset counter weight when spin testing an empty machine
FACT: It is NORMAL for this unit to be unbalanced until 350-400 RPM –
counter weights will only align correctly after this RPM is reached
• Activate the SERVICE MODE first (ref: above).
• Press the SPIN key to start DIAGNOSTIC CODE check mode. “d” will start flashing.
• To cycle through the diagnostic codes (d1, d2, d3, etc.), turn the rotary cycle selector
(knob) either clockwise or counter clockwise.
• When turning the rotary selector key (knob) in one direction, it shows diagnostic codes
from the latest (d1).
• Now when turning the knob in the opposite direction it shows the diagnostic codes in the
reverse order. E.g. When it stops at “d5” and then turn backwards, it shows from “d4” to
“d”. (Refer to Diag. Code interpretation).
Service mode Option 4:
DIAGNOSTIC ERROR CODE CHECK
 Use the Board input test under service mode to test water temp,
during normal wash operation.
Service mode Option 3:
Board Input Test Chart
TEST FUNCTION PRESS Enter or Exit
1 Water Valve Test
TEMP
**Door Lock Must be Activated 1
st
before running Component **
2 Door Lock SPIN
3 Heater SUPER SPEED
4 Drain Pump /Bubble Pump SOIL
5 EEPROM MEMORY CLEAR DELAY END + POWER (with POWER OFF)
LED 1st LED is on 2nd LED is on 3rd LED on 4th LED On 5th LED on
Display
Water Temp
C
Water Temp
F
Door Status
OP=Open
CL=Closed
Door lock
sw Status
UL=
unlocked
LO=Locked
Water
Frequency
Touch sensitive keys on these models make it difficult to enter. Multiple
attempts might be necessary , make sure fingers are clean and dry.

Samsung WF42H5600 Specifications

General

Brand	Samsung
Model	WF42H5600
Category	Washer
Language	English

Summary

Quick Test Mode

Test Mode (Power Off)

Procedure to enter Quick Test Mode with the unit powered off.

Service Mode (Power On)

Procedure to enter Service Mode with the unit powered on.

Diagnostic Error Code Check

Steps to check diagnostic error codes using Service Mode.

Components Check

Door Lock S/W Check

Procedure to check the resistance and functionality of the Door Lock Switch.

Water Level Sensor Check

Procedure to check water level sensor frequency and resistance.

Water Valve Check

Procedure to check water supply valve resistance and voltage.

Drain Motor Check

Procedure to check the resistance of the Drain Motor.

Drum Motor Check

Procedure to check the resistance of the Drum Motor.

Troubleshooting Error Codes

Sensor and Motor Errors

Details on errors for water level sensor, motor, and hall sensor.

Water Supply and Drain Errors

Details on errors for water supply, drain pump, and communication.

Door, Heater, and Leakage Errors

Details on errors for door lock, heater, and water leakage.

Overflow, Temperature, and Unbalance Errors

Details on errors for overflow, temperature sensor, and unbalance.

Additional Error Codes

Details on foaming, Mems PBA, and system errors.

Problem Troubleshooting Guide

Will Not Lock / Unlock

Troubleshooting steps for when the door will not lock or unlock.

Will Not Spin / Drain

Troubleshooting steps for when the washer will not spin or drain.

No Key Operation / Stops

Troubleshooting steps for unresponsive controls or cycle interruptions.

Excessive Suds / Leaks Water

Troubleshooting steps for excessive suds and water leakage issues.

Load Wet / Vibrates / No Water

Troubleshooting for wet loads, excessive vibration, or insufficient water.

PCB and Wiring Diagrams

Main PCB Layout

Identification of connectors and pins on the Main PCB.

Inverter PCB Layout

Identification of connectors and pins on the Inverter PCB.

Sub PCB Layout

Identification of connectors and pins on the Sub PCB.

Wiring Diagram

Schematic diagram showing electrical connections between components.

Inverter Board Testing

Motor Connector Tests

Procedure for testing resistance at the motor connector.

Hall Sensor Connector Tests

Procedure for testing resistance at the Hall Sensor connector.

Communication Connector Tests

Procedure for testing resistance at the Communication connector.

Washer Features

Capacity and Display

Details on the largest capacity and 8" LCD Touch Screen Display.

Control and Care Features

Information on Smart Control, Smart Care, and PowerFoam.

Performance and Technology

Details on SpeedSpray, VRTplus, Deep Steam, and Pure Cycle.

Design and Motor

Information on Stylish Design, Diamond Drum, and DD Motor.