Samsung RS257BABB Service Guide - Page 55

Diagnostics 11-11) If Crushed Ice/Cubed Ice doesn't work properly: Start Is ice ejected? YES The condition of close on operation is subject to the freezer door. NO NO Does ice in the ice tray exist ? YES 1) Check the ice-ejector S/W. 2) Check the door S/W. 3) Check the ice moving motor. 4) Check the cut of wire in the Ice moving Motor section. What's your selection between crushed and cubed? Crushed ice NO Do you see Ice Stop on the digital panel? YES Cancel Ice Stop, select cubed/crushed ice. 1) Check the water hose for folding or fastening. 2) Check the ice-water-way and solenoid value 3) Check the wires of ice-maker. cubed ice Cubed ice extracted Is the cube ice ejected sufficiently? Is the Crushed ice extracted sufficiently? NO YES Normal operation NO Does MICOM No. 36 turn 0V if pressing Ice S/W? Normal operation NO Does MICOM No. 36 turn 0V if pressing Ice S/W? NO YES Failure of Main PCB and exchange it. YES Failure of Main PCB has. -Exchange it. Does IC3 No. 16 turn 0V if NO pressing Ice S/W? Measure both contact YES terminals of RY76 after the separation of CN70, CN71 connectors. Main PCB(IC3) has failure - exchange it. Does the contact shelf of RY76 relay turn 0Ϊif NO pressing ICE S/W? Exchange of Main PCB(RY77 YES relay). Main PCB is normal operated. - - - Necessary to check other sections. 1) Check the wire between terminals of the AUGER motor and main PCB. 2) Failure of cube solenoid for itself, or bad contact of the connector. Does the voltage of IC3 No. 16 turn 0V even in the ice S/W OFF? NO YES Failure of Main PCB(IC3) and exchange it. Measure both terminals of RY76 contact after the separation of CN70, CN71 connectors. Does the contact shelf of RY76 relay turn 0Ϊ even in the power OFF? YES NO Main PCB is normal. - - - Check other sections. 1) Check the wire between the AUGER motor and main PCB. Failure of Main PCB - exchange. (The contact terminal of RY76 relay short failure.) 55