Samsung WF501ANW-XAA - Manual (Page 17)

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Hall Sensor Check
Check Voltage at Pin #4 and #3 of CN3
Tester Check = DC 0V or 1.3V
Check Voltage at Pin #4 and #2 of CN3
Tester Check = DC 0V or 1.3V
Motor Check
Resistance at Pin #1 of #2 of CN8 = 12Ω
Resistance at Pin #2 of #3 of CN8 = 12Ω
Resistance at Pin #3 of #1 of CN8 = 12Ω
Door Lock Check
Check Voltage at Pin #1 of CN6 and Pin #5 of CN1
When Door Lock = AC 120V
Drain Motor Check
Check Voltage at Pin #1 of CN6 and Pin #3 of CN1
When Drain Pump operates = AC 120V
Water Valve Check
Check Voltage at Pin #1 of CN6 and Pin #1,2,7,8,9 of
CN1
When Each Valve operates = AC 120V
AC Power Check
Check Voltage at Pin #1 and #2 of CN6
Check Voltage at Pin #1 CN2 and Pin #2 of RY1
WASH Heater Relay Check
Check Voltage at Pin #1 of CN6 and Pin #2 of RY13
When Heater Relay operates = AC 120V
PROBLEM CHECKING AND METHOD OF PCB
- 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 #4 and #5 of CN6
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 #6 and #5 of CN6
Reset water level = DC1.6V, 26.0KHz
Check Voltage and Frequency at Pin #7 and #5 of CN6
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
(Technical information)WF501ANWX-03011B_EN.indd 17 2011-06-24 �� 6:20:25