Trouble Shooting Guide

20
Hall Sensor Check
CheckVoltageatPin#4and#2ofCN3
TesterCheck=DC0Vor1.3V
CheckVoltageatPin#4and#3ofCN3
TesterCheck=DC0Vor1.3V
Motor Check
ResistanceatPin#1and#2ofCN11=12Ω
ResistanceatPin#1and#3ofCN11=12Ω
ResistanceatPin#2and#3ofCN11=12Ω
Door Lock Check
CheckVoltageatPin#1ofCN6andPin#2ofRY5
WhenDoorLock=AC120V
Drain Motor Check
CheckVoltageatPin#5ofCN6andPin#2ofRY5
WhenDrainMotoroperates=AC120V
CIRCLE Motor Check
CheckVoltageatPin#4ofCN6andPin#2ofRY5
WhenCirculationMotoroperates=AC120V
Water Valve Check
CheckVoltageatPin#2,6,7,8,9,10ofCN6andPin#2
ofRY5
Wheneachvalveoperates=AC120V
AC Power Check
CheckVoltageatPin#1ofCN5and#2ofPOWER
RELAY
TesterCheck=AC120V
Wash Heater Relay Check
CheckVoltageatPin#2ofRY6andPIN#2ofRY5
WhenHeaterRelayoperates=AC120V
PROBLEM CHECKING AND METHOD OF PCB (Model: WF457AR*)
- IfyoupluginthepowercordandturnPowerS/Won,memorizeddataisdisplayed.
Ifanydataisnotdisplayed,checkthefollowings.
Thermistor Check
CheckVoltageatPin#8and#9ofCN7
TesterCheck=DC1.6V
Ifitready5V,checkifitsconnectorisengaged
properly.
Water Sensor Check
CheckVoltageandFrequencyatPin#10and#9ofCN7
Resetwaterlevel=DC1.6V,26.0KHz
CheckVoltageandFrequencyatPin#11and#9ofCN7
Resetwaterlevel=DC1.6V,26.0KHz
TROUBLE SHOOTING
Toavoidriskofelectricalshock,personalinjuryordeath;disconnectpowertowasher
beforeservicing,unlesstestingrequirespower.
WARNING
CN5 £¥
CN11
£
¥
RY5
£
¤
RY6 £¤
CN6
¨§
£
CN3 ¦£
£CN7
CN1 ª£
(Techsheet)WF457AR-03152A-02_EN.indd 20 2012-12-13 11:23:00