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Kenmore 795-71022.010 service manual Troubleshooting, F C 7 5 L A N E, FC90LANA, FC75LANE

Models: 795-71022.010

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12. TROUBLESHOOTING

12. TROUBLESHOOTING

12-1 INFORMATION OF LINEAR COMPRESSOR

The information tag provides compressor model, refrigerant, serial number and safety approval

Compressor Label

1. Compressor Model

F C 7 5 L A N E

Series name DLF/FA/FB

Displacement

ex)90=9.0/stroke

Application Category

-L : LBP with R134a

-H : HBP with R134a

-N : LBP with R600a

Operating Type

A : A-Inverter

E : E-Inverter

Rated Voltage & Frequency

-M : 220V 50/60Hz

-N : 115V 50/60Hz

Efficiency version A : 1st generation B : 2nd generation

Name Plate

FC75LANE

Size : 90mm X 20mm

2.Refrigerant

3.Serial Number

00 00 9 2003 5 13 0012

Buyer Code			Serial No.
Model Code	Month		Date
Line	1	: January	O : October
		~	N : November
Year	9	: September	D : December

4. Safety Approval

Ex)

There are two types of controllers used in the linear compressor system.

-The “E”-inverter system is used with the FC75LANE compressor.

-The “A”-inverter system is used with the FC90LANA compressor.

RefrigeratorComp DriveCompressor

FC75LANE
FC75LANE	Comp On/Off		Inverter		Self
E-Inverter			Inverter		Self
			CVCF		Modulation
			CVCF		Modulation
System
System


FC90LANA	Controls the
	algorithm
	algorithm		Inverter		Stroke
A-Inverter	according to		VVVF		Modulation
A-Inverter	various		VVVF		Modulation
System

	conditions
	conditions
			*VVVF : Variable Voltage Variable Frequency
			*VVVF : Variable Voltage Variable Frequency
			**CVCF : Constant Voltage Constant Frequency

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Kenmore 795-71022.010 service manual Troubleshooting, F C 7 5 L A N E, FC90LANA, FC75LANE

Contents

795.71022.010 795.71023.010 795.71024.010 BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUALModel #s P/No. MFL63273703SAFETY PRECAUTIONS CONTENTSSAFETY PRECAUTIONS 1. SPECIFICATIONS1-3 ELECTRICAL SPECIFICATIONS 1. SPECIFICATIONS1-1 DISCONNECT POWER CORD BEFORE SERVICING 1-6 INSTALLATIONDescription 795.7102. PARTS IDENTIFICATION 3-1 REMOVING AND REPLACING REFRIGERATOR DOORS 3. DISASSEMBLYElectrical Shock Hazard Door Gasket Removal 1. Remove door frame cover Door Gasket Replacement 1. Insert gasket bracket clipsInserting the Gasket Assembly into the Bracket Door 2. Remove gasket bracket clips3-4 FAN AND FAN MOTOREVAPORATOR 3-3 DOOR ALIGNMENT3. Replace door frame cover 3-6 LAMP 3-5 DEFROST CONTROL ASSEMBLY3-6-1 Refrigerator Compartment Lamp 3-9 DISPENSER 3-7 MULTI DUCT3-8 MAIN PWB To change freezer light3-11 FUNNEL REPLACEMENT 3-10 DISPLAY PWB REPLACEMENT3-13 DUCT DOOR REPLACEMENT 3-12 SUB PWB FOR WORKING DISPENSER3-15 ICEMAKER ASSEMBLY 3-14 ICE CORNER DOOR REPLACEMENT3-16 AUGER MOTOR COVER 1 Grip the handles, as shown in the picture 3-17 HOW TO REMOVE A DOOR ICE BIN3-18 HOW TO INSERT A DOOR ICE BIN 2 Lift the lower part slightly 3 Take the Ice Bin out slowly3-19 HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER NOTE THIS TAB MUST BE PUSHED IN TO RELEASE THE GEAR3-19-1 Follow Steps to Remove 3-19-2 Follow Steps to Reinstall 3-20 WATER VALVE DISASSEMBLY METHOD 3-21 FAN AND FAN MOTOR DISASSEMBLY METHOD3-22 PULL OUT DRAWER Hook4 Assembly in reverse order of disassembly 4. ADJUSTMENT4-2-1 Control of Compressor Block Diagram 4-1-1 Role4-2-3 Compressor protection logic 4-2-4 Compressor problems diagnosisP Power Line 1 Check to normality by measurement of resistanceStandard for normality 3 Check problems by LED On & Off Count Sub PCB2 Check to normality by measurement of Voltage 1min5. CIRCUIT DIAGRAM Error Display 6. TROUBLESHOOTINGError Detection Error Generation FactorsP/No & MFG 7. PCB Picture7-1 Main PCB PicturePicture 7-2 Display PCB & Sub PCBP/No Display PCB EBR43358505 2010.02~ CON1018. Troubleshooting With Error Display 8-2 Refrigerator Sensor Error Er rS 8-3 Icing Sensor Error Er IS 8-4 Defrost Sensor Error F dS 8-5 Defrost Heater Error Er dH 0 or 5 Below 12Change the PCB Change the motorDuct Asm 8-8 Condenser Fan Error Er CF 8-9 Communication Error Er CO 9. Troubleshooting Without Error Display 31.1 ~Geared Motor 0 ~ Page 9-5 Refrigerator room lamp doesn’t work Reset the unit and Temperaturethe temperature Check the air temperatureDamper 9-7 Poor cooling in Freezer compratment Reset the unit and Temperaturethe temperature 9-8 Over cooling in Fresh food compartment10. Reference RESISTANCE 10-2 TEMPERATURE CHART - FREEZER AND ICING SENSORTEMP VOLTAGERESISTANCE 10-3 TEMPERATURE CHART - REFRIGERATOR AND DEFROST SENSORTEMP VOLTAGE10-4 How to check the Fan-Error Step 2 Check for blinking frequency of LED, PWB Compressor TroubleshootingStep 1 Loosen up screw of Case Assembly PCB and open the Cover PCBLED seven- time repetiton IPM Fault Trip Actions to take according to Led blinking frequencyService guideline LED operating condition11. COMPONENT TESTING INFORMATION 11-2 Sheath Heater How to MeasureSheath heater at all temperature FunctionFunction 11-3 Door Heater AssemblyHow to Measure The heater is designed to prevent the exterior moisture on the doorNomal Check the resistance between connectors 1, 2 and 3Switch, Refrigerator Push the buttonPlungerDispenser DC Motor Opens and closes the ice chute door 11-5 Dispenser DC MotorFunction How to11-6 ICE AUGER Moter ASSEMBLY 11-7 Damper Function How to Measure11-8 Light Bulb Socket Make sure the light bulb is screwed in tight to the light socketFunction Red wire to Black wire11-9 Flow Sensor Flow Sensor in machine roomFC90LANA 12. TROUBLESHOOTINGF C 7 5 L A N E FC75LANEWaiting Time Inverter Error CodesRequirement The number ofIPM Voltage Check Note Higher voltage readings may occur under “heavy” load conditionsPo Power FC75LANEPo Power FC90LANAPOINTS TO BE CHECKED 12-2 SERVICE DIAGNOSIS CHARTCOMPLAINT REMEDYSTATE OF THE TEMPERATURESTATE OF CAUSE12-3-1 SEALED SYSTEM DIAGNOSIS “Not Cooling” Complaint problem has been isolated to sealed system areaCondenser Temperature Hotter than Normal Room Temperature Pattern? Equalization TestIcemaking 13. OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER13-1-1 Operation Principle of IceMaker FillWater supply amount TABLE Switch setting, as well as the13-2 ICE MAKER FUNCTIONS STAGE13-3-1 ERROR CODES shown on Ice Maker water supply control panel 13-2-5 Function TEST14-1-1 Function 14-1-2 How to Toggle the Display between F & C14. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM 14-1-3 Lock function dispenser and display button lock14-1-7 DISPENSER LIGHT 14-1-5 Ultra Ice selection14-1-6 Dispenser use selection 14-1-8 CONTROL OF FREEZER FAN MOTOR14-1-13 How to set the display mode and cancel It 14-1-12 Alarm for Open Door14-1-11 Ultra Ice 14-1-14 Defrosting removing frost 14-1-15 Defect Diagnosis Function616G 617A625A 623BCASE PARTS CAUTION Use the part number to order part, not the position numberCASE PARTS CASE PARTS 145C FREEZER PARTSCAUTION Use the part number to order part, not the position number 145F 145M 145J 145HCAUTION Use the part number to order part, not the position number REFRIGERATOR PARTS141C 249E 249G DOOR PARTSCAUTION Use the part number to order part, not the position number 249JDOOR PARTS 278C DISPENSER PARTS278A 278B606A ICE MAKER & ICE BANK PARTS612A 600B 630J 600A 611A 614A