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Kenmore 795.583*.410 Service Manual

Sxs freezer refrigerator
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SXS FREEZER REFRIGERATOR
REFRIGERATOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE PRODUCT
READ THE SAFETY PRECAUTION IN THIS MANUAL
MFL62078253
Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.
Printed in Mexico
Sears Canada Inc. Toronto, Ontario, Canada M5B 2B8
MODELS:
795.5183*.410
www.sears.com
www.kenmore.com
www.sears.ca

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Summary of Contents for Kenmore 795.583*.410

  • Page 1 SERVICE MANUAL CAUTION BEFORE SERVICING THE PRODUCT READ THE SAFETY PRECAUTION IN THIS MANUAL MODELS: 795.5183*.410 MFL62078253 Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A. www.sears.com Printed in Mexico Sears Canada Inc. Toronto, Ontario, Canada M5B 2B8 www.sears.ca www.kenmore.com...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS …………………………………………………………………………………………………………. 1. SPECIFICATIONS …………………………………………………………………………………………………………..……. 2. PARTS IDENTIFICATION ………………………………………………………………………………………………..…...…. 3. HOW TO INSTALL THE REFRIGERATOR ………………………………………………………………………….…..……. 4. HOW TO DISASSEMBLY AND ASSEMBLE ………………………………………………………………………..……. 10 5. MICOM FUNCTION ……………………………………………………………………………………………………..………. 23 6. ICEMAKER AND DISPENSER OPERATION AND REPAIR ……………………………………………………..………. 31 7.

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator. 1. Check the refrigerator for current leakage. 7. Before tilting the refrigerator, remove all materials from on or in the refrigerator. 2. To prevent electric shock, unplug before servicing. 8.

  • Page 4: Specifications

    1. SPECIFICATIONS 1-1. DISCONNECT POWER CORD BEFORE SERVICING IMPORTANT: Reconnect all grounding devices. All parts of this appliance capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips, nuts or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened.
  • Page 5 1-7. REPLACEMENT PARTS PERFORMANCE DATA Overload..........6750CL0001D (NORMAL OPERATING CONDITIONS) Defrost Thermostat........EBD61246710 SYSTEM PRESSURE (PSIG) Defrost Heater.......... 5300JB1114Z WATTS HIGH SIDE LOW SIDE Evaporator Fan........EAU62064601 Compressor (Hi-Side)......TCA35911903 70°F 98 (+10 / -10) 98 (+5 / -3) (-5) to (-2) Evaporator (Lo-Side).......

  • Page 6: Parts Identification

    2. PARTS IDENTIFICATION Use this page to become more familiar with the parts and features. Note: This guide covers several different models.The refrigerator you have purchased may have some or all of the items listed below. The locations of the features shown below may not match your model. Automatic Icemaker Water Filter Refrigerator Shelves...

  • Page 7: How To Install The Refrigerator

    3. HOW TO INSTALL THE REFRIGERATOR 1. Leveling 2. Open both doors again and check to make sure that they close After installing, plug the refrigerator’s power cord into a 3-prong easily. If the doors do not close easily, tilt the refrigerator slightly grounded outlet and push the refrigerator into the final position.
  • Page 8 2. INSTALL WATER FILTER 3. REFRIGERATOR/FREEZER SHELVES The shelves in your refrigerator and freezer are adjustable to meet your individual storage needs. Adjusting the shelves to fi t It is recommended that you replace the water filter: items of different heights will make finding the exact item you •...
  • Page 9 4. ICEMAKER ICE STORAGE BIN The ice bin stores the ice cubes made by the ice maker. If you need to remove the ice storage bin, do so as follows: NOTE: Use both hands to remove the ice bin to avoid dropping it.

  • Page 10: How To Disassembly And Assemble

    4. HOW TO DISASSEMBLY AND ASSEMBLE 1. REMOVING AND REPLACING REFRIGERATOR DOORS Before removing the doors remove the base grille To remove the right (refrigerator) door: 1. Open the door. Remove the top hinge cover screw (1). 2. Use a flat blade screwdriver to pry back the hooks 1.
  • Page 11 Reinstalling the right (Refrigerator) door • Loosen the set screws with a 3/32” (2.38 mm) Allen wrench and remove the handle. NOTE: If the handle mounting fasteners need to be tightened or moved, use a ¼ ” (6.35 mm) Allen wrench.
  • Page 12 2. Using a flat blade screwdriver to release LED Module from 2. REMOVING AND REPLACING the case LED as shown in the pictures. REFRIGERATOR AND FREEZER LEDs Unplug Refrigerator, or disconnect power at the circuit breaker. If necessary, remove top shelf or shelves. •...
  • Page 13 3. SMART DIAGNOSIS DISASSEMBLY • Assemble 1. Open the refrigerator door. Then, remove the top hinge 1. Place the smart diagnosis by inserting the PCB hole into cover screw. the guide 2. 2. Lift up the cover. 2. Make sure that the PCB is corrrectly placed. 3.
  • Page 14 4. REED S/W 5. FAN SHROUD GRILLE Remove screw 1. Loosen one screw with a screwdriver blade. 2. Disassembly of an upper grille fan: Hold upper part of an upper grille fan (U) and pull forward carefully. 3. Disassembly of a lower grille fan: Hold upper part of a lower grille fan and pull forward carefully.
  • Page 15 6. CHECK REED SWITCH FAILURE Chink Reed Switch The Switch senses if the door is open or close. When the door open, lamp on Micom When the door open, the switch give information to When the door open, internal contact operate on and off moving plunger of door switch up and down Check Voltage between pin 09,10 at CON6 and pin 11,12 at CON8.(Refrigerator and Freezer)
  • Page 16 3. Lock the water being supplied. Then separate the Water 7. WATER VALVE DISASSEMBLYMETHOD connection connected to the Water Valve. 1. Shut off water supplier and dispense water to purge water system. Then turn off power from refrigerator. Open the F Door.
  • Page 17 8. WATER VALVE TUBES ASSEMBLY METHOD 1) Connect the Water filter 2) Connect the Water tube(IN) ① to the Water filter tube(Out) ② to valve(ⓐ). the Water valve(ⓑ). 3) Connect the Ice 4) Connect the Water maker tube ③ to the Tank tube ④...
  • Page 18 9. DISASSEMBLE OF FAN MOTOR 4. Separate the housing. 1. Remove by pushing fan in direction of the arrow. 2. Remove guide fan screw using a screwdriver. 5. Remove guide fan from tray drip, and then remove cover motor screws using a screwdriver. 3.
  • Page 19 10. ICEMAKER DISASSEMBLY METHOD 2) Hold the front of the Cover,TV and Pull it out completely. Note :to disassemble the icemaker, separate Motor, AC from the door first. disassemble Ice bin and cover. Cover 3) Loosen 1 Screw on the Water Tank. Ice bin Separate the Motor,AC from the door.
  • Page 20 12. DISPENSER 1. Remove the display pulling out with tools such as Flat-tip 3. Loosen four screws with a phillips screwdriver and pull the screwdriver on one side and repeat the process on the other funnel assembly to disconnect. side while pulling it forward as shown in the picture. Funnel Assembly Funnel 4.
  • Page 21 7) Dispenser related parts COVER ASSEMBLY, DISPLAY COVER, DISPLAY DECO, DISPLAY PCB ASSEMBLY, DISPLAY FRAME FUNNEL ASSEMBLY SWITCH FRAME, FUNNEL LEVER DISPENSER (BUTTON) FUNNEL BUTTON LEVER MOTOR ASSEMBLY SPRING HOLDER LEVEL CAP, DUCT DISPENSER LEVER, (CAP DUCT) RUBBER, CAP...
  • Page 22 How to disassemble/reassemble the refrigerator home bar How to disassemble/reassemble the refrigerator home bar 1-2. The Method to disassemble the Home Bar button 1. Family home bar model 1-1. How to disassemble the home bar 1. Separate the H/Bar Gasket adjacent to the Holder,Lever,and then unscrew three screws.

  • Page 23: Micom Function

    5. MICOM FUNCTION 1. MONITOR PANEL Key lock button Filter cartridge status reset button. Temperature adjustment button for Freezer section. Dispensing selection button (Cubed Ice / Crushed Ice / Water). Temperature adjustment button for Refrigerator section. Ice maker on&off button/ULTRA ICE function selection button Dispenser light button.
  • Page 24 1-1. Display Function 1) When the appliance is plugged in, it is set to 37°F for refrigerator and 0°F for freezer. You can adjust the Refrigerator and the Freezer control temperature by pressing the ADJUST button. 2) When the power initially applied or restored after a power failure, it is set to the previously controlled temperature. Demo Mode Display OFF Mode...
  • Page 25 1-4. Key Lock Button (dispenser and display lock) 1) When the refrigerator is first turned on, the buttons are not locked. The display panel shows the padlock unlocked icon. 2) To lock the display, the dispenser, and the control panel, press, and hold the Control Lock button for 3 seconds.
  • Page 26 1-8. ULTRA ICE 1) The purpose of this function is to intensify the cooling speed of freezer and to increase the amount of ice. 2) Whenever selection switch is pressed, selection/ release, the icon will turn ON or OFF. 3) If there is a power outage and the refrigerator is powered on again, ULTRA ICE will be canceled. 4) To activate this function, press the ULTRA ICE key and the icon will turn ON.
  • Page 27 1-12. Ringing of compulsory operation, compulsory frost removal buzzer 1) If pressing the test button in the main PCB, “Phi ~” sound rings. 2) In selecting compulsory operation, alarm sound is repeated and completed in the cycle of On for 0.2 second and Off for 1.8 second three times.
  • Page 28 1-17. Failure Diagnosis Function Error Display Error Detection Error Generation Factors Remarks Freezer Temperature Ref. Temperature Category (Error Code 1 ) (Error Code 2 ) Normality None Normal operation of Display Freezer Sensor Short or Disconnection of Freezer Sensor Error Refrigerator Sensor Short or Disconnection of Refrigerator 1 Error...
  • Page 29 1-18. Test Function 1) The purpose of test function is to check function of the PCB and product and to search for the failure part at the failure status. 2) T est button is placed on the main PCB of refrigerator (test switch), and the test mode will be finished after maximum 2 hour for Test mode 1, 80minutes for Test mode 2.
  • Page 30 1-21. Compensation circuit for temperature at freezer T emperature compensation in CUT JCR1 +1 °C [+1.8 °F] +2 °C [+3.6 °F] JCR2 +1 °C [+1.8 °F] JCR3 -1 °C [-1.8 °F] -2 °C [-3.6 °F] JCR4 -1 °C [-1.8 °F] Compensation Compensation T emperature compensation value...

  • Page 31: Icemaker And Dispenser Operation And Repair

    6. ICEMAKER AND DISPENSER OPERATION AND REPAIR 1. OPERATION PRINCIPLE 1-1. Operation Principle of Icemaker Power On • Adjusts EJECTOR to Start Position with power on. Start Position Icemaking • Waits until water becomes cold after starting the Mode icemaking operation. Checking full •...
  • Page 32 2. Function TEST CAUTION! Before you carry out the test mode, check whether the water is frozen in the icemaker completely. If the test is performed while the water is not frozen in the icemaker, The water may overflow after test and it will cause other serious problem.

  • Page 33: Circuit Diagram

    7. CIRCUIT DIAGRAM...

  • Page 34: Troublediagnosis

    8. TROUBLEDIAGNOSIS 1. TroubleShooting CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 1) No power at outlet. * Measuring instrument: 1. Faulty start Multi tester 2) No power on cord. Bad connection between adapter and outlet. (faulty adapter) Check the voltage. The Inner diameter of adapter.
  • Page 35 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 2. No cooling. 2) Refrigeration system is clogged. • Heat a clogged evaporator to check it. As soon as the Moisture Residual moisture Air Blowing. Not performed. cracking sound starts, the clogged. in the evaporator.
  • Page 36 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration 1) Refrigerant Partly leaked. Weld joint leak. is weak. Parts leak. 2) Poor defrosting capacity. • Check visually. Drain path (pipe) clogged. Inject adiabatics into drain Inject through the hose. hole.
  • Page 37 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration Residual Weak heat from heater. Sheath Heater - rated. is weak. frost. T oo short defrosting time. Defrost Sensor. - Faulty characteristics. Seat-D (missing, location. thickness). Structural fault. Gasket gap. Air inflow through the fan motor.
  • Page 38 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration 4) No cooling air circulation. is weak. Faulty fan motor. Fan is Fan shroud contact. - Clearance. constrained. Damping evaporator contact. Accumulated residual frost. Small cooling air Insufficient Fan overload. - Fan misuse. discharge.
  • Page 39 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 4. Warm 1) Colgged cooling path. refrigerator Adiabatics liquid leak. compartment Foreign materials. –– Adiabatics dump liquid. temperature. 2) Food storate. Store hot food. Store too much at once. Door open. Packages block air flow. 5.
  • Page 40 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 6. Condensation 4) Condensation on door. and ice Condensation on the duct door. - Duct door heater is cut. formation. Condensation on the Recess Heater is cut. dispense recess. Duct door is open. / Foreign material clogging. Condensation on the Not fully filled.
  • Page 41 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 7. Sounds 1) Compressor compartment operating sounds. Transformer sound. Its own fault. - Core gap. Bad connection. - Correct screw connection. Drip tray vibration sound. Bad assembly. Distortion. Foreign materials inside. Back cover machine sound. Bad connection.
  • Page 42 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 8. Faulty lamp 1) Lamp problem. Filament blows out. (freezer and Glass is broken. refrigerator 2) Bad lamp assembly. Not inserted. compartment). Loosened by vibration. 3) Bad lamp socket. Disconnection. Bad soldering. Bad rivet contact.
  • Page 43 CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 10. Structure, 1) Door foam. appearance, Sag. Hinge loose Bolt is loosened during and others. transportation. Not tightly fastened. Screw worn out . Weak gasket Adhesion surface. adhesion. Fixed tape. Not well fixed. Hinge interference.
  • Page 44 2. Faults 2-1. Power...

  • Page 56: Pcb

    9. MAIN PCB 9-1. Main PCB ( P/N : EBR789316**) CON6 CON7 CON8 CON201 CON9 CON1 CON5 CON3 9-2. Display PCB ( P/N : EBR793294**) CON101...
  • Page 57 9-2. Troubleshooting With Error Display 2-1 Freezer Sensor Error (Er FS) Symptom Check Point 1. Er FS 1. Check for a loose connection 2. Check Sensor Resistance CON8 Resistance [Ω] Short CON8 Open pin ~ 11 Other Normal CON8 Resistance [Ω] pin ~ 11 -22ºF / -30ºC -13ºF / -25ºC...
  • Page 58 Freezer Sensor Error (Er FS) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON8 CON8 Resistance [Ω] pin ~ 11...
  • Page 59 2-2. Refrigerator Sensor Error (Er rS) Symptom Check Point 1. Er rS 1. Check for a loose connection 2. Check Sensor Resistance CON6 Resistance [Ω] Short CON6 Open pin ~ 6 Other Normal CON6 Resistance [Ω] pin ~ 6 23ºF / -5ºC 32ºF / 0ºC 41ºF / 5ºC 50ºF / 10ºC...
  • Page 60 Refrigerator Sensor Error ( Er rS) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON6 CON6 Resistance [Ω]...
  • Page 61 2-2. Refrigerator Sensor Error (Er r2) Symptom Check Point 1. Er R2 1. Check for a loose connection 2. Check Sensor Resistance CON6 Resistance [Ω] Short CON6 Open pin ~ 8 Other Normal CON6 Resistance [Ω] pin ~ 8 23ºF / -5ºC 32ºF / 0ºC 41ºF / 5ºC 50ºF / 10ºC...
  • Page 62 Refrigerator Sensor Error ( Er r2) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON6 CON6 Resistance [Ω]...
  • Page 63 2-2. Refrigerator Sensor Error (Er rT) Symptom Check Point 1. Er RT 1. Check for a loose connection 2. Check Sensor Resistance CON7 Resistance [Ω] Short CON7 Open pin ~ 12 Other Normal CON7 Resistance [Ω] pin ~ 12 23ºF / -5ºC 32ºF / 0ºC 41ºF / 5ºC 50ºF / 10ºC...
  • Page 64 Refrigerator Sensor Error ( Er RT) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON7 CON7 Resistance [Ω]...
  • Page 65 2-3. Icing Sensor Error (Er IS) Symptom Check Point 1. Er IS 1. Check for a loose connection 2. Check Sensor Resistance CON9 Ice Maker Connector Resistance [Ω] CON9 Short pin ~ 8 Open Other Normal CON9 Resistance [Ω] pin ~ 8 -22ºF / -30ºC -13ºF / -25ºC -4ºF / -20ºC...
  • Page 66 Icing Sensor Error (Er IS) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? Ice Maker Connector CON9 CON9 Resistance [Ω]...
  • Page 67 2-4. Defrost Sensor Error (F dS) Symptom Check Point 1. F dS 1. Check for a loose connection 2. Check Sensor Resistance CON8 Resistance [Ω] Short CON8 Open pin ~ 13 Other Normal CON8 Resistance [Ω] pin ~ 13 23ºF / -5ºC 32ºF / 0ºC 41ºF / 5ºC 50ºF / 10ºC...
  • Page 68 Icing Sensor Error (F dS) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON8 CON8 Resistance [Ω] pin ~ 13...
  • Page 69 2-6. Defrost Heater Error (F dH) Symptom Check Point 1. F dH 1. Check the door gasket 2. Check the Defrost control part 3. Check the PCB output voltage CON3 Part Resistance [Ω] FUSE-M Defrost Heater 48~54 Defrost Sensor 22k↑ TEST MODE 2 Voltage [V] CON3...
  • Page 70 Defrost Heater Error (F dH) Input Test 2 Mode (Push the button 2 times) Replace Check the Heater Voltage. Main PCB Is voltage 112~116V? Replace the Check the Door gasket . Door gasket Is door gasket damaged? CON3 Change TEST MODE 2 Voltage [V] Fuse-M Check the Defrost control part.
  • Page 71 2-7. Freezer Fan Error (Er FF) Symptom Check Point 1. Er FF 1. Check the air flow 2. Check the Fan Motor 2. Check the PCB Fan motor voltage Fan Motor CON8 TEST MODE 1 Voltage [V] CON8 8~14V pin ~ 20 CON8 Not 0V, 5V pin ~ 22...
  • Page 72 Freezer Fan Error (Er FF) Check the Fan Motor voltage Replace Is Fan Motor voltage 8~14V? Main PCB Reset the unit and Input Test1 Mode. (Push the button 1 time) CON8 TEST MODE 1 Voltage [V] Go to 3 Open the freezer door and Check CON8 8~14V the air flow.
  • Page 73 2-9. Condenser Fan Error (Er CF) Symptom Check Point 1. Er CF 1. Check the air flow 2. Check the Connector 2. Check the PCB Fan motor voltage Fan Motor CON8 TEST MODE 1 Voltage [V] CON8 8~14V pin ~ 14 CON8 Not 0V, 5V pin ~ 16...
  • Page 74 Condenser Fan Error ( Er CF) Check the Fan Motor voltage Replace Is Fan Motor voltage 8~14V? Main PCB Reset the unit and Input Test1 Mode. (Push the button 1 time) CON8 TEST MODE 1 Voltage [V] Go to 3 Check the fan rotating.
  • Page 75 2-10. Communication Error (Er CO) Symptom Check Point 1. Er CO 1. Check the loose connection 2. Check the Hinge connection CON7 Display CON101 Voltage [V] CON101 pin ~ 4 CON101 Not 0V, 5V pin ~ 1 CON101 Not 0V, 5V pin ~ 2 CON7 Not 0V, 5V...
  • Page 76 Communication Error ( Er CO) Change the Main PCB Check the voltage. Is CON101 3 pin ~ 1 voltage 0V or 5V? Check the loose connection Voltage Housing CON101 pin ~ 1 0V, 5V CON101 Check the Check the voltage. Hinge (loose Is CON101 3 pin ~ 4...
  • Page 77 2-11. Ice Maker Motor Error (Er lt) Symptom Check Point 1. Er It 1. Check for a loose connection 2. Check Sensor Resistance CON9 Housing Resistance [Ω] CON9 374~456 pin ~ 4 CON9 374~456 pin ~ 6...
  • Page 78 Ice Maker Motor Error (Er It) 3 Disconnect housing of Main PCB Change the Explain to And check resistance between ICE Maker Input Ice Maker test mode(Push customer Pink and blue wires. Is Motor Unit The ice maker test button),check resistance 374~456Ω? The Ice Tray,Ice maker motor Rotate? Wait until 1 minute...
  • Page 79 9-3. Troubleshooting Without Error Display 3-1. Cube mode doesn’t work Symptom Check Point 1. Cube mode 1. Check the loose connection doesn’t work 2. Check the resistance Duct Motor Ice Maker Auger Motor Dispenser SW...
  • Page 80 3-1. Cube mode doesn’t work INSPECTION Result POINT LEVER S/W Pushing 0~2V ICE Lever SW CON7 3.5~5V pin ~ 20 Pushing Pushing 9~12V Duct Motor CON7 0~2V pin ~ 24 Motor Type Resistance [Ω] Pushing Pushing 112~115V Auger Motor 33~ 37 Auger Motor CON3 Duct Motor...
  • Page 81 Check the resistance value. Replace Is Dispenser Motor resistance Geared Motor 9.9 ~ 12.1Ω? Cube mode doesn't work Check the loose connection Dispenser Motor Change the Resistance [Ω] Check the voltage. (while pushing the lever S/W) Dispenser Motor 9.9 ~ 12.1 Is voltage correct compared with table? Check the voltage.
  • Page 82 3-2 Crush mode doesn’t work Symptom Check Point 1. Crush mode 1. Check the loose connection doesn’t work 2. Check the resistance Duct Motor Ice Maker Auger Motor Dispenser SW...
  • Page 83 3-2 Crush mode doesn’t work INSPECTION Result POINT LEVER S/W Pushing 0~2V ICE Lever SW CON7 3.5~5V pin ~ 20 Pushing Pushing 9~12V Duct Motor CON7 0~2V pin ~ 24 Motor Type Resistance [Ω] Pushing Pushing 112~115V Auger Motor 23~27 Auger Motor CON3 Duct Motor...
  • Page 84 3-2 Crush mode doesn’t work Check the resistance value. Replace Is Dispenser Motor resistance Geared Motor 9.9 ~ 12.1Ω? Crush mode doesn't work Check the loose connection Dispenser Motor Change the Resistance [Ω] Check the voltage. (while pushing the lever S/W) Dispenser Motor 9.9 ~ 12.1 Is voltage correct compared with...
  • Page 85 3-3. Water mode doesn’t work Symptom Check Point 1. Water mode 1. Check the loose connection doesn’t work 2. Check the resistance valve Water Valve(RD) Ground (BL) (1) (2) (3) (4) Pilot Valve (GY) CON3 Pilot Valve Water Valve Machine Room Water INSPECTION Result...
  • Page 86 Water mode doesn’t work Replace Water Valve Check the resistance value. Check the loose connection Is Pilot Valve resistance 390~450 Ω? Change the Check the voltage. (while pushing the lever S/W) Is voltage correct compared with table? Pilot Valve Resistance [Ω] Pilot Valve 390~450 CON7...
  • Page 87 3-4. Refrigerator room led doesn’t work Symptom Check Point 1. Refrigerator room led 1. Check the freezer door switch sticky doesn’t work 2. Check the door S/W resistance 3. Check the LED Lamp Door S/W R Led Lamp CON6 Resistance [Ω] Open Infinity Door S/W...
  • Page 88 Refrigerator room lamp doesn’t work Change the Change the Check the Freezer door switch. Door S/W Door S/W Check the LED Lamp voltage. Does it feel sticky? Is it 0~2V? (While door closed) Change the Check the door S/W resistance. Door S/W Is it correct compared with table? Change the...
  • Page 89 3-5. Freezer room lamp doesn’t work Symptom Check Point 1. Freezer room lamp 1. Check the Refrigerator door switch sticky doesn’t work 2. Check the door S/W resistance 3. Check the LED Lamp F Led Lamp CON8 Door S/W Resistance [Ω] Open Infinity Door S/W...
  • Page 90 Freezer room lamp doesn’t work Change the Change the Check the Refrigerator door switch. Door S/W Door S/W Check the LED Lamp voltage. Does it feel sticky? Is it 0~2V? (While door closed) Change the Check the door S/W resistance. Door S/W Is it correct compared with table? Change the...
  • Page 91 3-6. Poor/Over cooling in Fresh food section Symptom Check Point 1. Poor cooling in Fresh 1. Check the sensor resistance food section 2. Check the air flow 3. Check the air Temperature 4. Check the R-Damper motor voltage Duct CON8 CON6 Fan Motor CON6 R1SNR...
  • Page 92 Poor cooling in Fresh food section Check the Compressor Check the air temperature. and sealed Is it cold? system Check the sensor resistance. Go to 7 CON6 CON6 R1SNR Check the Fan Motor voltage Resistance [Ω] pin ~ 6 Replace Is Fan Motor voltage 8~14V? Main PCB 23ºF / -5ºC...
  • Page 93 3-7. Poor cooling in Freezer compartment Symptom Check Point 1. Poor cooling in 1. Check the sensor resistance Freezer compartment 2. Check the air flow 3. Check the air Temperature 4.Check the Fan motor sticky 4. Check the Fan motor voltage Duct CON8 Fan Motor...
  • Page 94 Poor cooling in Freezer compartment Check the F Check the sensor resistance. Fan Motor Open the fresh food door and Go to 5 Check the air flow. Windy? CON8 CON8 Resistance [Ω] pin ~ 11 -22ºF / -30ºC -13ºF / -25ºC -4ºF / -20ºC 5ºF / -15ºC 14ºF / -10ºC...
  • Page 95 Check the Fan Motor voltage Replace Is Fan Motor voltage 8~14V? Main PCB CON8 TEST MODE 1 Voltage [V] CON8 8~14V pin ~ 20 Check the Fan Motor voltage Change the Is Fan Feed Back voltage 0V, 5V? motor CON8 TEST MODE 1 Voltage [V] CON8...
  • Page 96 3. COMP operation error 1.Open the PWB COVER When the COMP is normal, it will 2.Check the number of LED blinks not blink (Refer to the next page for resolution by number of LED blinks 1.Open the BACK COVER 3.Check the COMP connector voltage (Measure without pulling the HOUSING)
  • Page 97 4. Resolution by number of LED blinks LED operating condition Cause Service guide 1. After resetting the power check LED blinking 1 time repeatedly PCB part normal operation defect . When the same symptom occurs again after taking action for 1, (MICOM) Blink -Off-Blink-Off-Blink-Off-Blink-Off-Blink-Off Repeat...
  • Page 98 4. Appendix 19) Entering to the Test Mode How to make TEST MODE TEST MODE 1 If refrigerator is in NORMAL MODE, press once TEST S/W in Main PCB. TEST 1 Display Response in TEST MODE 1 If any error is present, you can not enter to TEST MODE. TEST MODE 2 If refrigerator is in NORMAL MODE, press twice TEST S/W in Main PCB, if you are in TEST MODE 1, press again.
  • Page 99 How to make DISPLAY CHECK MODE In order to check hidden error codes, or Display functionality. “ “ To enter to this mode in Elite 3 press simultaneously Ice Maker ULTRA ICE”button and FREEZER TEMP”button for more than 5 seconds If no are errors detected all LED’s will be turned ON otherwise error code will be displayed Press simultaneously for more than 5 seconds...
  • Page 100 20) Removing TPA’s (Terminal Position Assurance) How to remove Terminal Position Assurance (TPA) <AC TPA> <DC TPA> After measure the values, you should put in the TPA again. 3. Wire Color BL: Blue GN: Green WH: White SB: Sky Blue BO: Bright Orange GY: Gray BK: Black...
  • Page 101 21) Temperature Charts Temperature Chart #1 Temperature Chart #2 Voltage Voltage Temperature Resistance KÙ Temperature Resistance KÙ -40°F / (-40°C) -40°F / (-40°C) 73.29 4.10 225.10 4.48 -31°F / (-35°C) -31°F / (-35°C) 53.63 3.84 169.80 4.33 -22°F / (-30°C) -22°F / (-30°C) 39.66 3.55...
  • Page 102 3. SEALED SYSTEM HEAVY REPAIR 3-1. Summary of heavy repair Process Contents Tools Trouble diagnosis Remove refrigerant - Cut charging pipe ends and discharge refrigerant from Filter, side cutters Residuals drier and compressor. - Use R134a oil and refrigerant for compressor and drier Pipe Cutter, Gas welder, N gas - Confirm N sealing and packing conditions before use.
  • Page 103 3-2. Precautions During Heavy Repair Items Precautions 1. Use of tools. 1) Use special parts and tools for R134a. 2. Recovery of refrigerant. 1) Continue to recover the refrigerant for more than 5 minutes after turning the refrigerator off. 2) Install a piercing type valve on the high pressure line (drier side). Then use the appropriate recovery equipment to recover the refrigerant from the system.
  • Page 104 3-3. Practical Work For Heavy Repair Items Precautions 1. Removal of residual refrigerant. Suction KEY POINT Observe the sequence for removal of refrigerant. (If not, compressor oil may Capillary leak.) Tube Service tube Discharge tube 1) Continue to recover the refrigerant for more than 5 minutes after turning the refrigerator off. 2) Install a piercing type valve on the high pressure line (drier side).
  • Page 105 Items Precautions Evaporator 4. Vacuum degassing. Suction pipe Hot Line Compressor Drier Condenser pressure High Blue pressure Yellow KEY POINT - If power is applied Vaccum Pump during vacuum degassing, vacuum degassing shall be more effective. Pipe Connection - Run the compressor Connect the red hose to the high pressure side and the blue hose to the while charging the system.
  • Page 106 Items Precautions Evaporator Hot Line Compressor Drier Condenser Charging Canister 4) Refrigerant Charging Charge refrigerant while operating a compressor as shown above. 5) Pinch the charging pipe with a pinch-off plier after completion of charging. 6) Braze the end of a pinched charging pipe with copper brazer and take a gas leakage test on the welded parts.
  • Page 107 3-5. Brazing Reference Drawings 3-5. Brazing Reference Drawings Pipe Assembly, Hot Line (Freezer) Cooper Brazing Silver Brazing Copper Brazing Capi-tube Drier assembly Silver Brazing Pipe assembly, suction Pipe Assembly, Joint Copper Brazing Pipe assembly, Wire Condenser joint Silver Brazing Copper Brazing Copper Brazing Copper Brazing...
  • Page 108 4. HOW TO DEAL WITH CLAIMS 4-1. Sound Problems Checks and Measures Hisssounds Explain general principles of sounds. • All refrigerators make noises when they run. The compressor and fan produce sounds. There is a fan in the freezer compartment which blows cool air to freezer and refrigerator compartments.
  • Page 109 Problems Checks and Measures Sounds of water flowing Explain the flow of refrigerant. • When the refrigerator stops, the water flowing sound happens. This sound happens when the liquid or vapor refrigerant flows from the evaporator to compressor. Click sounds Explain the characteristics of moving parts.
  • Page 110 4-2. Measures for Symptoms on Temperature Problems Checks and Measures Refrigeration is weak. Check temperature set in the temperature control knob. • Refrigerator is generally delivered with the button set at normal use (MID). But customer can adjust the temperature set depending on their habit and taste. If you feel the refrigeration is weak, then set the temperature control button at strongposition.
  • Page 111 4-3. Odor and Frost Problems Checks and Measures Odor in the refrigerator compartment. Explain the basic principles of food odor. • Each food has its own particular odor. Therefore it is impossible to prevent or avoid food odor completely when food is stored in the completely sealed refrigerator compartment.
  • Page 112 4-4. Others Problems Checks and Measures The refrigerator case is hot. Explain the principles of radiator. • The radiator pipes are installed in the refrigerator case and partition plate between the refrigerator and the freezer compartment in order to prevent condensation formation.

  • Page 113: Troubleshooting Compressor

    10. TROUBLESHOOTING COMPRESSOR 12-1 INFORMATION OF LINEAR COMPRESSOR The information tag provides compressor model, refrigerant, serial number and safety approval. Name Plate FLB075LANA Size : 90mm X 20mm There are two types of controllers used in the linear compressor system. The “A”-inverter system is used with the FLB075LANA compressor.
  • Page 114 To reduce noise level, the piston stroke is slowly increased to full power during start up. Step 1) Start up - Half stroke interval for fist 30 seconds. Step 2) Ramp up - Stroke increases every 0.8sec until maximum stroke length is reached (about 3 min, 15 sec). Step 3) CVCF interval - 180V / 60Hz.
  • Page 115 PCB CHECK (SIMPLIFY) Protection logic Test 1Mode A-inverter Con201 Timeo>30sec Power Off Power ON PCB OK Disconnect & V 200 Replace Driver PCB Check voltage about 200V past 30 second after turn on Test Mode Comp Ref. Display & Sound Refer FLB075(A-Inverter) Display ON, Buzz 1 time...
  • Page 116 12-1 Check A Dear is PC board located in the PCB case. The control driver is PC board for the compressor. This step shows the source voltage of the driver PC board. Step 1. Open PCB Cover Step 2. Check Driver PCB * Driver PCB located in machine room.
  • Page 117 12-2 CHECK B B1. LED Blinks once, then repeats. (FCT0 Fault: A-inverter) Protection Logic Blink OFF Blink OFF Voltage - Purpose: Detecting motor current and voltage error. - Check voltage at point A (motor voltage), point B (motor current) point C (capacitor voltage) when compressor is off.
  • Page 118 B4- LED Blinks five times, then repeats Locked Piston: A&E Inverters - Purpose: to detect locked piston. - Cause: lack of oil to the cylinder or piston damaged and or restricted discharge. A locked piston can also be caused by foreign materials inside the compressor. - Logic: Compressor is forced off and tries to restart within 2.5 minutes.
  • Page 119 B6. LED blinks seven times, then repeats (IPM Fault: A&E Inverters) Blink Blink Blink Blink Blink Blink Blink OFF - Purpose: Prevent high current due to IPM short. - Cause: Damaged IPM (dead short) - Test for a dead short at point A with a VOM - Logic: Compressor is forced off and tries to restart in 20 seconds...
  • Page 120 B7. LED Blinks eight times, then repeats (Communication Error) Blink Blink Blink Blink Blink Blink Blink Blink Purpose: To detect Set Control Micom and communication error. ‘Cause: Communication Error, Logic: LED blink (Compressor runs reference value before occurring communication Error) Check Tem.&Sound Pressure of comp and D-pipe 2.
  • Page 121 12-3 CHECK C C1. Harness connection check C2. Capacitor specifications C3. Compressor check - Step 1. Power off - Step2. Check capacitor Spec table1 - Step3. Check resistance of point A - Step 4 Check wire harness inf ohm . - Step5.
  • Page 122 12-4 CHECK D D1. Activate protection logic - We have to check condenser fan and freezer fan before performing check D. - Locked piston, current trip and stroke trip can be activate by other problems then the driver or compressor. →...
  • Page 123 LG Linear Compressor NOTE: Any terminal to ground should read Inf (~) Inf (~) 6 ~ 8 6 ~ 8 Inf (~)
  • Page 124 ACTIONS TO TAKE ACCORDING TO LED BLINKING FREQUENCY LED Operating condition Service guideline Cause LED two - time repetiton PCB part 1. After resetting power, defect check if it is running normal. - off - - off - - off repeating (piston 2.

  • Page 125: Component Testing Information

    11. COMPONENT TESTING INFORMATION 13-1 DEFROST CONTROLLER ASSEMBLY - Controller assembly is consist of 2 kinds of parts those are fuse-m and sensor, we can decide part Function is defect or not when we check the resistance. - Fuse-m can cut off the source when defrost heater operate the unusual high temperature. - Sensor give temperature information to Micom.
  • Page 126 13-2 SHEATH HEATER Sheath heater is a part for defrost. All heating wire is connected to only one line. So we can decide Function part is defect or not when we check the resistance. (1)(2) How to measure Set a ohmmeter connect to the 2 housing pin. Measure the 2 pin connected to Sheath Heater.
  • Page 127 13-3 DOOR and Chute HEATER ASSEMBLY The heater is designed to prevent the raising dew from door and cap duct. Function Check the Red/White to Grey/Red at CON8 on the Main PCB How to measure Standard Test Point Result (17)To (19) 27 ~ 31 Ohms...
  • Page 128 13-4 H/BAR DOOR HEATER ASSEMBLY The heater is designed to prevent the raising dew from H/Bar door. Function Check the Brown to Blue at CON5 on the Main PCB How to measure Standard Test Point Result (1)To (7) 2060 ~ 2370 Ohms...
  • Page 129 13-5 DOOR SWITCH, REFRIGERATOR & FREEZER The switch sense if the door open or close. Function - When the door open, lamp on. -When the door open, the witch give information to Micom. When the door open, internal contact operate on and off moving plunger of door switch up and down.
  • Page 130 13-6 DISPENSER DC MOTOR - Dispenser DC Motor: When customer push the dispenser button, pull duct door and abstract from Function ice bank. How to measure Dispensor DC Motor Dispenser DC Motor Standard Test Points Result (1) to (2) 9.9 ~ 12.1...
  • Page 131 13-7 AC MOTOR ASSEMBLY The In-door motor of AC motor assembly pushes ices to the dispenser. Function < In-door Motor > < In-door Motor > How to Take out the male Take out the male measure housing from housing from female housing female housing Measure the...
  • Page 132 13-8 DAMPER The damper supplies the cold air at freezer room to chillroom by using the damper’s plate. Function Chillroom is coolder than before when damper’s plate is open. When damper’s plate is close, chillroom’s temperature will rise. How to measure <...
  • Page 133 Get it fixed, at your home or ours! Your Home For troubleshooting, product manuals and expert advice: www.managemylife.com For repair – in your home – of all major brand appliances, lawn and garden equipment, or heating and cooling systems, no matter who made it, no matter who sold it! For the replacement parts, accessories and owner’s manuals that you need to do-it-yourself.

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