Samsung WF455ARGSWR/AA Trouble Shooting Guide User Manual Ver.1.0 (English, Fr - Page 20

TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. 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 CN3 CN7 CN1 ª £ CN6 ¨§ ¬£ 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 CN11 £ ¥ RY6 £ ¤ RY5 £ ¤ CN5 £ ¥ 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 20 (Techsheet)WF457AR-03152A_EN_20120404.indd 20 2012-04-04 �� 12:12:31