57TROUBLESHOOTING䤋 Self-diagnostics check listLEDR-1-˃R-1-˄R-1-˅R-1-ˆR-1-ˇR-1-ˉF-1-˃F-1-˄F-1-˅F-1-ˆF-1-ˇF-1-ˈF-1-ˉF-10-˄R-10-˃R-10-˄R-10-ˉF-10-ˉItemIce Maker Sensor ErrorR-Sensor ErrorR-DEF-Sensor ErrorR-FAN ErrorIce Maker ErrorR-DEF. ErrorAmbient-Sensor ErrorF-Sensor ErrorF-DEF-Sensor ErrorF-FAN ErrorC-FAN ErrorIce Room Sensor ErrorF-DEF. ErrorIce Room-FAN ErrorPantry-Damper-Heater ErrorPantry-Sensor ErrorWater Tank-Heater ErrorPanel®Main communication ErrorTrouble contents Diagnostic methodDisplay error : separation of sensor housingpart, contact error, disconnection, shortcircuitDisplay error of detecting temperature ofsensor: more than 149× (+65°C) or lessthan -58×(-50°C)Display error : sensor housing separation,contact error, disconnection, short circuitDisplay error by detecting temperature ofsensor: more than 149×(+65°C) or lessthan -58×(-50°C)Display “Pc - Er” in the panel with alarm : MICOM MAINPANEL communication error oP-Er is displayed when theOption is not equivalent with the right value.Actually, If there is not a problem, it is desirable toreplace Main and Panel PCB With the oscilloscopeafter a cable problem confirming.The voltage of MAIN PCB CN90 #3®CN90#4 :shall be between 4.5V~1.0V.The voltage of MAIN PCB CN30#6®CN76#1:shall be between 4.5V~1.0VThe voltage of MAIN PCB CN30#8®CN76#1:shall be between 4.5V~1.0VVoltage of MAIN PCB CN76-4 Orange ® 1Gray shall be between 7V~12VAfter replacing ice maker, check the operationby turning the appliance ON again.The voltage of MAIN PCBCN31#1®#4 : shall be between 4.5V~1.0V.The voltage of MAIN PCB CN30#3®CN76#1:shall be between 4.5V~1.0VThe voltage of MAIN PCBCN30#4®CN76#1:shall be between 4.5V~1.0VVoltage of MAIN PCB CN76-3 Yellow ® 1Gray shall be between 7V~12V.Voltage of MAIN PCB CN76-5 Sky-blue ® 1Gray shall be between 7V~12V.The voltage of MAIN PCBCN31#3 ®CN76#1:shall be between 4.5V~1.0VThe voltage of MAIN PCBCN30#9 ® CN76#1 : shall be between 4.5V~1.0V.After separating MAIN PCB CN79 from PCB, the resistant valuebetween White ® Pink wire shall be 72 ohm 7%.0 Ohm : heater short, Ohm : wire / bimetal Open.Display error : separation of fresh food compartment defrost heater housingpart, contact error, disconnection, short circuit or temperature fuse error.Display error : the defrosting does not finish though fresh food compartmentdefrost is heating continuously for more than 80 minutes.After separating MAIN PCB CN70,CN71 from PCB, the resistance valuebetween CN70 White ® CN71 Orange shall be 110(441) ohm 7%.(Resistant value is varied by the input power)0 Ohm : heater short, Ohm : wire / bimetal Open.After separating MAIN PCB CN70,CN71 from PCB, resistant valuebetween CN70 brown ® CN71 Orange shall be 55(220) ohm 7%. (Resistant value is varied by input power)0 Ohm : heater short, Ohm : wire / bimetal Open.After separating MAIN PCB CN91from PCB, the resistant valuebetween Black ® brown wire shall be 145 ohm 7%.0 Ohm : heater short, Ohm : wire / bimetal Open.Voltage of MAIN PCB CN76-2 Black ® CN76-1 Gray : shall bebetween 6V~12V.Display error : separation of freezer compartment defrost heater housingpart , contact error, disconnection, short circuit or temperature fuse error.Display error : the defrosting does not finish though fresh food compartmentdefrost is heating continuously for more than 70 minutes.Display error during operation of applicablefan motor : Feed Back signal line contacterror, separation of motor wire, motor errorDisplay error : ice making kit is harvestedmore than 3 times and level error** Apply to the applicable Ice Maker model.Display error during operation of applicablefan motor : Feed Back signal line contacterror, motor wire separation, motor errorDisplay error during operation of applicablefan motor : Feed Back signal line contacterror, motor wire separation, motor errorDisplay error : sensor housing separation,contact error,disconnection, short circuit.Display error by detecting temperature of sensor: morethan 149× (+65°C) or less than -58× (-50°C)Display error when open error is detected by damperheater : separation of Damper Heater housing part,contact error, disconnection, short circuitDisplay error during operation of applicable fan motor :Feed Back signal line contact error, motor wire separation,motor errorDisplay error : separation of sensor housing, contact error,disconnection, short circuit.Display error by detecting temperature of sensor: more than 149×(+65°C) or less than -58×(-50°C)Display error when open error is detected by Water TankHeater : separation of Water Tank Heater housingpart,contact error, disconnection, short circuit