LG LSC27914SB Owner's Manual - Page 107
Enter to TEST MODE 2 Press TEST S/W once
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16) Poor Cooling in Refrigerator section NO. CHECKING FLOW 1) Unplug Damper Motor 2) Check the Damper Motor impedance. 123 9 RESULT & SERVICE ACTION Result Service Action 1 ~6 369 ~ 451Ù Change PCB Other Change Damper 2~5 369 ~ 451Ù Change PCB Other Change Damper 3~4 129.6~158.4Ù Change PCB Other Change Damper 65 4 1) Reset product. 2) Enter to TEST MODE 1 (press once TEST S/W on Main PCB). Result Service Action a~b Below 10 V Change Main PCB Other Go to Step 11 b~c 0V or 5V Change Fan Motor Other Go to Step 11 a ~b 3) Check Voltage in CON 6 as shown in the pictures. 10 b~c 1) Reset the refrigerator. 2) Enter to TEST MODE 1 (Press TEST S/W once). 3) Check Voltage in CON 1. 4) Enter to TEST MODE 2 (Press TEST S/W once again). 5) Check Voltage in CON 1. 6) Proceed with the action. 11 Result Service Action TEST MODE 1 Bad compressor, Refrigerant leakage, tube 110~127Vac obstruction, etc. (Please refer to cycle troubleshooting) Other Change Main PCB TEST MODE 2 0~5 Vac Bad compressor, Refrigerant leakage, tube obstruction, etc. (Please refer to cycle troubleshooting) Other Change Main PCB - 106 -