Kenmore 795.74092.41 Series Page 27 Service Manual Download

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7-3. Sub PCB

(P/N : EBR76468402)

Summary of Contents for 795.74092.41 Series

Page 1: ...CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Model s REFRIGERATOR SERVICE MANUAL 795 74092 41 795 74093 41 795 74099 41 P No MFL68488611 ...

Page 2: ...LL THE PULLOUT DRAWER 18 19 WATER VALVE DISASSEMBLY METHOD 20 FAN AND FAN MOTOR DISASSEMBLY METHOD 20 CAUTION SEALED SYSTEM REPAIR 21 3 WAY VALVE SERVICE 21 4 ADJUSTMENT 22 5 CIRCUIT DIAGRAM 23 6 TROUBLESHOOTINTG 24 25 7 PCB PICTURE 26 27 8 TROUBLESHOOTING 28 68 9 REFERENCE 69 72 10 COMPONENT TESTING INFORMATION 73 83 11 COMPRESSOR TROUBLESHOOTING 84 96 12 ICEMAKER OPERATING METHOD AND TROUBLE SHO...

Page 3: ...r Fan Motor EAU61505013 Capacitor Running EAE58905704 Compressor Hi Side TCA35111301 R Evaporator Lo Side ADL73881001 F Evaporator Lo Side ADL73980910 Conderser ACG73645002 Dryer 5851JA2007U Condenser Fan Motor EAU61884202 Temperature Control ACQ85571111 SW ACQ85571112 ST ACQ85571113 WB Main Control EBR78940606 Ice Fan Motor EAU61524010 31 7cu ft 795 74092 41 795 74093 41 795 74099 41 1 8 AIR FLOW...

Page 4: ...Total with Door Open Height to Top of Case Height to Top of Door Hinge Width Width door open 90 deg w o handle Width door open 90 deg w handle A B C D E F G H I 37 1 8 in 34 5 8 in 30 3 8 in 49 in 68 7 8 in 70 1 4 in 35 3 4 in 40 in 45 in Description 795 7409 ...

Page 5: ...ase N Durabase Divider O Water Tank Cover P Articulating Mullion Q Air Filter R Kenmore Connect Speaker S Convenience Bin T Ice Compartment Icemaker and Ice Bin H Humidity Controlled Crisper I Air Tight Crisper J Use this page to become more familiar with the parts and features of your refrigerator NOTE This guide covers several di erent models The refrigerator you have purchased may have some or ...

Page 6: ... not shown on the front underside of the cover 2 Lift up the cover Remove the cover Pull out the tube 3 Disconnect all the wire harnesses 4 Remove the grounding screw 5 Rotate hinge lever 6 counterclockwise Lift the top hinge 7 free of the hinge lever latch 8 IMPORTANT When lifting the hinge free of the latch be careful that the door does not fall forward Lift the door from the middle hinge pin an...

Page 7: ... 7 ...

Page 8: ... Door Gasket Removal 2 Lift mullion up carefully 3 Disconnect wire harness Door Gasket Replacement 1 Insert gasket into channel Insert and press gasket into channels at doorliner 2 Insert mullion into channel Insert the mullion into channel at door as shown below Mullion Replacement 1 Connect wire harness 3 Assemble 2 screws Gasket Gasket Channel ...

Page 9: ...e bolt in the door hinge to adjust the height CW to raise or CCW to lower the height 3 5 FAN AND FAN MOTOR 1 Remove the freezer drawer 2 Remove the plastic guide for slides on left side by unscrewing phillips head screws 3 Remove the grille assembly by removing four screws and pulling the grille assembly forward 4 Remove the Fan Motor assembly by loosening 3 screws and disassembling the shroud 5 P...

Page 10: ...of the Evaporator and senses its temperature At 46F 8 C it turns the Defrost Heater off Fuse M is a safety device for preventing over heating of the Heater when defrosting 1 Pull the Multi Duct Figure 1 2 Separate the connector with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 2 Defrost Control assembly consists of Defrost Sensor and FUSE ...

Page 11: ...ervice hole and remove cover of refrigerator light 3 7 1 Refrigerator Compartment Lamp 4 Replace the LED assembly 3 Remove the LED assembly from connector 3 7 2 Refrigerator Light Side 1 Unplug refrigerator power cord from electric outlet 2 Put flat screwdriver into sevice hole and remove cover of refrigerator light 3 Remove the LED assembly from connector 4 Replace LED assembly 5 Assemble the cov...

Page 12: ...to service hole remove the cover of cap duct LED LAMP 5 Replace LED assembly 6 Assembly the cover in reverse order 4 Remove the LED assembly from connector 1 Remove 2 screws and guide rail 2 Remove the upper and lower Caps by using a flat screwdriver and remove 2 screws as shown figure 3 Disconnect the lead wire on the bottom position 4 Grip both side of multi duct pull it out ...

Page 13: ...n the PCB cover 2 Remove the PCB cover 3 Disconnect wire harness and replace the main PCB in the reverse order of removal WARNING Unplug the refrigerator before removing the control board PCB Cover CAUTION When replacing the dispenser cover be careful that the lead wire in not exposed and the water tube is not pinched by the dispenser cover as shown in the picture below 3 9 Air Filter 3 11 DISPENS...

Page 14: ...ISPLAY PCB REPLACEMENT 1 Remove the dispenser cover and replace PCB with dispenser cover 2 Follow the steps in the pictures 3 13 FUNNEL REPLACEMENT 1 Remove 2 screws 2 Remove the funnel 3 16 CAP DUCT MOTOR REPLACEMENT 1 Separate the Housing of Cap Duct Motor 2 Remove 3 screws to disassemble the motor 3 When assembling a new Motor always make sure of the Duct Door and Link to install the Motor Link...

Page 15: ...s shown in the picture 2 Lift up the hinge with one hand 3 Pull out the Ice Corner Door with the other hand 3 18 Icemaker replacement 1 Remove 3 screws marked in the picture below 2 Grasp the bottom of motor cover assembly and pull it out slowly to remove 3 Disconnect wire harness from wall of compartment ...

Page 16: ...lower part slightly 3 20 HOW TO PLACE ICE BIN IN POSITION 1 Insert the Ice Bin slightly tilting it to avoid touching the Icemaker Especially Ice Detecting Sensor Note Before remove ice bin put on clean golves for keeping clean ice bin Auto shuto feeler arm 3 Take the Ice Bin out slowly ...

Page 17: ...ails out to the full extension and insert the insert the back of the tray into both rails Then set the front of the tray into the rail and push it until you hear it click into place Middle Drawer 1 To remove the middle drawer Pull the drawer out to full extension Lift the front of the drawer up then pull it straight out 2 To install slightly tilt up the front and insert the drawer into the frame a...

Page 18: ... Step 3 Remove the four screws from the guide rails one from each side Step 4 Removal of the freezer door is done by l ifting clear of the rail support Fully extend both rails Step 5 Remove only 1 screw of gearice and disassemble the bar and gearice Step 6 Remove 2 screws of both side of supporter covers tv and disassemble the supporter cover tv ...

Page 19: ... Assemble a bar and gear ice with screw Push the otherside of the gear to inside of the bar Step 5 The rail system will align itself by pushing the rails all the way into the freezer section Pull the rails back out to full extension Step 6 Reinstall the freezer door by inserting the rail tabs into the guide rail Assemble them like as pictures Step 7 Reinstall the two screws into the guide rails on...

Page 20: ...alve to catch any water that may come out Pull out the clip and press the collet to separte the water line from the valve Mechanical Cover Housing MOTOR COVER 2 Pull and separate the FAN ASSEMBLY and MOTOR turning counterclockwise based on the MOTOR SHAFT FAN ASSEMBLY MOTOR The assembly is in the reverse order of the disassembly and take special care for the following details 1 Be careful not to b...

Page 21: ...aporator The 3 way valve has plastic parts inside so always wrap it with a wet cloth before servicing when using a torch 1 Always replace the 3 way valve if there is a leak at any one of the 3 tubes coming from it 2 Service in replacement of valve valve failure Perform service in the same method as above Note To service sealed system follow the directions in 3 24 and 3 25 above Then service is the...

Page 22: ...e and over current 2 Do not drop or handle carelessly 3 Keep away from any liquid If liquid such as oil or water enters the Cover PTC Compressor may fail due to breakdown of their insulating capabilities 4 Always use the Parts designed for the compressor and make sure it is properly attached to the compressor Parts may appear physically identical but could have different electrical ratings Replace...

Page 23: ... 23 5 CIRCUIT DIAGRAM ...

Page 24: ... 24 6 TROUBLESHOOTING ...

Page 25: ... 25 ...

Page 26: ...N EBR78940606 P P P N EBR78940606 7 1 Main PCB CON7 CN1 CON201 CON2 CON1 CON3 CON5 CON6 7 2 Display PCB P N EBR787236 EBR789883 EBR787234 EBR789884 Top Bottom CON101 CON104 CON101 CON102 CON103 7 PCB Picture ...

Page 27: ... 27 7 3 Sub PCB P N EBR76468402 ...

Page 28: ...ose connection 2 Check Sensor Resistance Resistance Ω CON7 17th pin 18th pin Short 0 Open OFF Other Normal CON7 17th pin 18th pin Resistance Ω 22ºF 30ºC 40k 13ºF 25ºC 30k 4ºF 20ºC 23k 13ºF 25ºC 17k 14ºF 10ºC 13k 23ºF 5ºC 10k 32ºF 0ºC 8k CON7 8 1 Freezer Sensor Error E FS 8 Trouble Shooting ...

Page 29: ...Yes No Change the Sensor 3 Check the Sensor resistance Is resistance OFF Sensor open Yes No Replace the refrigerator 4 Check the Sensor resistance Is resistance normal Yes 5 Check the Temperature and resistance refer to the table No problem Yes CON7 17th pin 18th pin Resistance Ω 22ºF 30ºC 40k 13ºF 25ºC 30k 4ºF 20ºC 23k 13ºF 25ºC 17k 14ºF 10ºC 13k 23ºF 5ºC 10k 32ºF 0ºC 8k 6 Explain to customer CON...

Page 30: ...ck Sensor Resistance Resistance Ω CON7 15h pin 16th pin Short 0 Open OFF Other Normal CON7 15th pin 16th pin Resistance Ω 23ºF 5ºC 38k 32ºF 0ºC 30k 41ºF 5ºC 24k 50ºF 10ºC 19 5k 59ºF 15ºC 16k CON7 CON7 CN1 CON201 CON2 CON1 CON3 CON5 CON6 2 Refrigerator Sensor Error E rS ...

Page 31: ...Ω Sensor short Yes No Change the Sensor 3 Check the Sensor resistance Is resistance OFF Sensor open Yes No Replace the refrigerator 4 Check the Sensor resistance Is resistance normal Yes 5 Check the Temperature and resistance refer to the table No problem Yes 6 Explain to customer CON7 15th pin 16th pin Resistance Ω 23ºF 5ºC 38k 32ºF 0ºC 30k 41ºF 5ºC 24k 50ºF 10ºC 19 5k 59ºF 15ºC 16k CON7 ...

Page 32: ...esistance Resistance Ω CON5 11th pin 12th pin Short 0 Open OFF Other Normal CON5 11th pin 12th pin Resistance Ω 22ºF 30ºC 40k 13ºF 25ºC 30k 4ºF 20ºC 23k 13ºF 25ºC 17k 14ºF 10ºC 13k 23ºF 5ºC 10k 32ºF 0ºC 8k CON5 CON7 CN1 CON201 CON2 CON1 CON3 CON5 CON6 8 3 Icing Sensor Error E IS ...

Page 33: ...es No Change the Sensor 3 Check the Sensor resistance Is resistance OFF Sensor open Yes No Replace the refrigerator 4 Check the Sensor resistance Is resistance normal Yes 5 Check the Temperature and resistance refer to the table No problem Yes 6 Explain to customer CON5 11th pin 12th pin Resistance Ω 22ºF 30ºC 40k 13ºF 25ºC 30k 4ºF 20ºC 23k 13ºF 25ºC 17k 14ºF 10ºC 13k 23ºF 5ºC 10k 32ºF 0ºC 8k CON5...

Page 34: ...r Resistance Resistance Ω CON7 19th pin 20th pin Short 0 Open OFF Other Normal CON7 19th pin 20th pin Resistance Ω 23ºF 5ºC 38k 32ºF 0ºC 30k 41ºF 5ºC 24k 50ºF 10ºC 19 5k 59ºF 15ºC 16k DefrostController CON7 CON7 CN1 CON201 CON2 CON1 CON3 CON5 CON6 8 4 Defrost Sensor Error F dS ...

Page 35: ...tance 0Ω Sensor short Yes No Change the Sensor 3 Check the Sensor resistance Is resistance OFF Sensor open Yes No Replace the refrigerator 4 Check the Sensor resistance Is resistance normal Yes 5 Check the Temperature and resistance refer to the table No problem Yes 6 Explain to customer CON7 19th pin 20th pin Resistance Ω 23ºF 5ºC 38k 32ºF 0ºC 30k 41ºF 5ºC 24k 50ºF 10ºC 19 5k 59ºF 15ºC 16k CON7 ...

Page 36: ...heck for a loose connection 2 Check Sensor Resistance Resistance Ω CON7 13th pin 14th pin Short 0 Open OFF Other Normal CON7 13th pin 14th pin Resistance Ω 23ºF 5ºC 38k 32ºF 0ºC 30k 41ºF 5ºC 24k 50ºF 10ºC 19 5k 59ºF 15ºC 16k DefrostController CON7 8 5 Defrost Sensor Error r dS ...

Page 37: ...tance 0Ω Sensor short Yes No Change the Sensor 3 Check the Sensor resistance Is resistance OFF Sensor open Yes No Replace the refrigerator 4 Check the Sensor resistance Is resistance normal Yes 5 Check the Temperature and resistance refer to the table No problem Yes 6 Explain to customer CON7 13th pin 14th pin Resistance Ω 23ºF 5ºC 38k 32ºF 0ºC 30k 41ºF 5ºC 24k 50ºF 10ºC 19 5k 59ºF 15ºC 16k CON7 ...

Page 38: ...he door gasket 2 Check Defrost Heater 3 Check the PCB output voltage Part Resistance Ω FUSE M 0 Defrost Heater 1 62 70 2 144 167 Defrost Sensor 22k TEST MODE 3 Voltage V CON3 6th pin 10th pin 112V 116V TEST MODE 1 Voltage V CON3 6th pin 10th pin 0V CON3 8 6 Defrost Heater Error F dH ...

Page 39: ...Is voltage 0V Yes Input Test 1 Mode Push the button 1 times Replace Main PCB No No 2 Reconnect Is the Connector Properly connected No Yes 3 Is the resistance value of Fuse M less than 0 2Ω No Yes Change Fuse M 4 Is the resistance value of Heater as follow No Yes Replace Heater Measurement Point Resistance Ω 1 62 70 2 144 167 5 Is the resistance value of defrost sensor as follow Resistance is influ...

Page 40: ...or gasket 2 Check Defrost Heater 3 Check the PCB output voltage Part Resistance Ω FUSE M 0 Defrost Heater 76 89 Defrost Sensor 22k TEST MODE 3 Voltage V CON3 6th pin 9th pin 112V 116V DefrostController TEST MODE 1 Voltage V CON3 6th pin 9th pin 0V CON3 k Go 8 7 Defrost Heater Error r dH ...

Page 41: ...ge 0V Yes Input Test 1 Mode Push the button 1 times Replace Main PCB No 2 Reconnect Is the Connector Properly connected No Yes 3 Is the resistance value of Fuse M less than 0 2Ω No Yes Change Fuse M 4 Is the resistance value of Heater as follow No Yes Replace Heater Measurement Point Resistance Ω 1 76 89 Fuse M Heater Heater 5 Is the resistance value of defrost sensor as follow Resistance is influ...

Page 42: ...2 CON1 CON3 CON5 CON6 Symptom Check Point 1 E rF 1 Check the air flow 2 Check the PCB Fan motor voltage Duct TEST MODE 1 Voltage V CON6 3rd pin 5th pin 8 12V CON6 1st pin 5th pin Not 0V 5V CON6 8 8 Refrigerator Fan Error E rF ...

Page 43: ... Motor voltage Is Fan Motor voltage 8 12V Yes 3 Check the Fan motor Rotate fan using hand It feel sticky Yes Change the Fan motor Replace Main PCB No Reset the unit and Input Test1 Mode Push the button 1 time Go to 4 TEST MODE 1 Voltage V CON6 3rd pin 5th pin 8 12V 5 Check the Fan Motor voltage Is Fan Feed Back voltage 0V 5V No Change the motor Yes 6 Explain to customer ...

Page 44: ...ON5 CON6 Symptom Check Point 1 E FF 1 Check the air flow 2 Check the Fan Motor 2 Check the PCB Fan motor voltage TEST MODE 1 Voltage V CON7 10th pin 12th pin 8 12V CON7 8th pin 12th pin Not 0V 5V Fan Motor CON7 8 9 Freezer Fan Error E FF ...

Page 45: ...voltage Is Fan Motor voltage 8 12V Yes 3 Check the Fan motor Rotate fan using hand It feel sticky Yes Change the Fan motor Replace Main PCB No Reset the unit and Input Test1 Mode Push the button 1 time Go to 4 Fan Motor TEST MODE 1 Voltage V CON7 10hpin 12th pin 8 12V 5 Check the Fan Motor voltage Is Fan Feed Back voltage 0V 5V No Change the motor Yes 6 Explain to customer ...

Page 46: ...5 CON6 Symptom Check Point 1 E IF 1 Check the air flow 2 Check the Connector 2 Check the PCB Fan motor voltage TEST MODE 1 Voltage V CON7 3rd pin 5th pin 8 12V CON7 1st pin 5th pin Not 0V 5V Air Flow Connector CON7 8 10 Icing Fan Error E IF ...

Page 47: ...oltage Is Fan Motor voltage 8 12V Yes 3 Check the Fan motor Rotate fan using hand It feel sticky Yes Change the Fan motor Replace Main PCB No Reset the unit and Input Test1 Mode Push the button 1 time Go to 4 Fan Motor TEST MODE 1 Voltage V CON7 3rd pin 5th pin 8 12V 5 Check the Fan Motor voltage Is Fan Feed Back voltage 0V 5V No Change the motor Yes 6 Explain to customer ...

Page 48: ...ON5 CON6 Symptom Check Point 1 E CF 1 Check the air flow 2 Check the Connector 2 Check the PCB Fan motor voltage TEST MODE 1 Voltage V CON7 4th pin 6th pin 8 12V CON7 2nd pin 6th pin Not 0V 5V Fan Motor CON7 8 11 Condenser Fan Error E CF ...

Page 49: ...oltage Is Fan Motor voltage 8 12V Yes 3 Check the Fan motor Rotate fan using hand It feel sticky Yes Change the Fan motor Replace Main PCB No Reset the unit and Input Test1 Mode Push the button 1 time Go to 4 TEST MODE 1 Voltage V CON7 4th pin 6 th pin 8 12V 5 Check the Fan Motor voltage Is Fan Feed Back voltage 0V 5V No Change the motor Yes 6 Explain to customer ...

Page 50: ...E CO 1 Check the loose connection 2 Check the Hinge connection Voltage V CON101 1st pin 2nd pin 12V CON101 2nd pin 3rd pin Not 0V 5V CON101 2nd pin 4th pin Not 0V 5V CON5 4th pin 6th pin Not 0V 5V CON5 4th pin 8th pin Not 0V 5V CON5 CON101 8 12 Communication Error E CO ...

Page 51: ...01 2nd pin 3rd pin voltage 0V or 5V Yes No Voltage V CON101 2nd pin 3rd pin Not 0V 5V Change the Main PCB 4 Check the voltage Is CON101 2nd pin 4th pin voltage 0V or 5V Yes No Voltage V CON101 2nd pin 4th pin Not 0V 5V Change the Display PCB 5 Check the voltage Is CON5 4th pin 6th pin voltage 0V or 5V Yes No Voltage V CON5 4th pin 6th pin Not 0V 5V Change the Main PCB 6 Check the voltage Is CON5 4...

Page 52: ... 52 Symptom Check Point 1 Cube mode doesn t work 1 Check the loose connection 2 Check the resistance CON2 CON1 Ice Maker Geared Motor Dispenser Motor 8 13 Cube mode doesn t work ...

Page 53: ... 53 LEVER S W Voltage V CON2 4thpin B NEUTRAL Pushing 112 115V Not Pushing 0 2V CON1 12th pin 13th pin Pushing 9 12V Not Pushing 0 2V Resistance Ω Geared Motor 31 1 42 1 Dispenser Motor 9 9 12 1 ...

Page 54: ...ushing the lever S W Is voltage correct compared with table No Yes LEVER S W Voltage V CON1 12th pin 13th pin Pushing 9 12V Not Pushing 0 2V Change the PCB CON1 4 Check the resistance value Is Geared Motor resistance 31 1 42 1Ω No Yes Replace Geared Motor Resistance Ω Geared Motor 31 1 42 1 5 Check the resistance value Is Dispenser Motor resistance 9 9 12 1Ω No Yes Replace Geared Motor Resistance ...

Page 55: ... 55 Symptom Check Point 1 Crush mode doesn t work 1 Check the loose connection 2 Check the resistance Ice Maker Geared Motor Dispenser Motor CON2 CON1 8 14 Crush mode doesn t work ...

Page 56: ... 56 LEVER S W Voltage V CON2 12th pin B NEUTRAL Pushing 112 115V Not Pushing 0 2V CON1 12th pin 13th pin Pushing 9 12V Not Pushing 0 2V Resistance Ω Geared Motor 31 1 42 1 Dispenser Motor 9 9 12 1 ...

Page 57: ...pushing the lever S W Is voltage correct compared with table No Yes LEVER S W Voltage V CON1 12th pin 13th pin Pushing 9 12V Not Pushing 0 2V Change the PCB 4 Check the resistance value Is Geared Motor resistance 31 1 42 1Ω No Yes Replace Geared Motor Geared Motor Resistance Ω Geared Motor 31 1 42 1 5 Check the resistance value Is Dispenser Motor resistance 9 9 12 1Ω No Yes Replace Geared Motor Di...

Page 58: ... 2 Check the resistance valve Water Valve PilotValve Resistance Ω Pilot Valve 360 420 Water valve 360 420 CON2 CON2 LEVER S W Voltage V CON2 11th pin B NEUTRAL Pushing 112 115V Not Pushing 0 2V CON2 10th pin B NEUTRAL Pushing 112 115V Not Pushing 0 2V 8 15 Water mode doesn t work ...

Page 59: ...nce value Is Pilot Valve resistance 360 420Ω No Yes Replace P Valve PilotValve Resistance Ω Pilot Valve 360 420 4 Check the resistance value Is Water Valve resistance 360 420Ω No Yes Replace Water Valve Water Valve Resistance Ω Water valve 360 420 CON2 LEVER S W Voltage V CON2 11th pin B NEUTRAL Pushing 112 115V Not Pushing 0 2V CON2 10th pin B NEUTRAL Pushing 112 115V Not Pushing 0 2V ...

Page 60: ...e lamp doesn t work 1 Check the door S W resistance 2 Check the LED Lamp Resistance Ω Door S W Normal 0 Push S W Infinity Voltage V CON6 13th pin 15th pin 12V Door S W LED Lamp LED Lamp Voltage V White Yellow Closed 0 2V Open 12V LED Lamp CON6 8 16 Refrigerator side lamp doesn t work ...

Page 61: ... 15th pin 12V 1 Check the door S W resistance Is it correct compared with table No Yes Change the Door S W Door S W 2 Check the PCB Voltage Is CON7 13h pin 15th pin voltage 12V No Yes Change the PCB CON6 4 Check the LED Lamp voltage Is it 0 2V While door closed No Yes Change the Door S W 5 Check the LED Lamp voltage Is it 12V While door open No Yes Change the LED Lamp LED Lamp LED Lamp LED Lamp LE...

Page 62: ...om lamp doesn t work 1 Check the door S W resistance 2 Check the LED Lamp Resistance Ω Door S W Normal 0 Push S W Infinity Voltage V CON6 28th pin 30th pin 12V Door S W LED Lamp LED Lamp Voltage V Blue Black Closed 0 2V Open 12V LED Lamp CON6 8 17 Refrigerator room lamp doesn t work ...

Page 63: ... 28th pin 30th pin 12V 1 Check the door S W resistance Is it correct compared with table No Yes Change the Door S W Door S W 2 Check the PCB Voltage Is CON6 28th pin 30th pin voltage 12V No Yes Change the PCB 4 Check the LED Lamp voltage Is it 0 2V While door closed No Yes Change the Door S W 5 Check the LED Lamp voltage Is it 12V While door open No Yes Change the LED Lamp CON6 LED Lamp LED Lamp ...

Page 64: ... resistance 2 Check the LED Lamp CON6 CON7 13th pin 14th pin Resistance Ω 23ºF 5ºC 38k 32ºF 0ºC 30k 41ºF 5ºC 24k 50ºF 10ºC 19 5k 59ºF 15ºC 16k Duct Status Air Flow Windy Air Temperature Cold CON7 TEST MODE 1 Voltage V CON6 3rd pin 5th pin 8 12V CON6 1st pin 5th pin Not 0V 5V LED Lamp 8 18 Freezer lamp doesn t work ...

Page 65: ...al 0 Push S W Infinity Voltage V CON6 28th pin 30th pin 12V 2 Check the door S W resistance Is it correct compared with table No Yes Change the Door S W Door S W 3 Check the PCB Voltage Is CON6 28th pin 30th pin voltage 12V No Yes Change the PCB 5 Check the LED Lamp voltage Is it 0 2V While door closed No Yes Change the Door S W 6 Check the LED Lamp voltage Is it 12V While door open No Yes Change ...

Page 66: ...e 4 Check the Fan motor sticky 4 Check the Fan motor voltage Duct Duct Status Air Flow Windy Air Temperature Cold Fan Motor CON7 19th pin 20th pin Resistance Ω 22ºF 30ºC 40k 13ºF 25ºC 30k 4ºF 20ºC 23k 13ºF 25ºC 17k 14ºF 10ºC 13k 23ºF 5ºC 10k 32ºF 0ºC 8k TEST MODE 1 Voltage V CON7 10h pin 12 th pin 8 12V CON7 8th pin 12th pin Not 0V 5V CON7 8 19 Poor cooling in Freezer compartment ...

Page 67: ...nt 1 Check the sensor resistance 2 Reset the unit and Input Test1 Mode Push the button 1 time 3 Open the fresh food door and Check the air flow Windy No Yes Check the F Fan Motor Go to 5 4 Check the air temperature Is it cold No Yes Check the Compressor and sealed system 5 Check the Fan motor Rotate fan using hand It feel sticky Yes Change the Fan motor Fan Motor No ...

Page 68: ...n Not 0V 5V 6 Check the Fan Motor voltage Is Fan Motor voltage 8 12V Yes Replace Main PCB No TEST MODE 1 Voltage V CON7 10thpin 12th pin 8 12V 7 Check the Fan Motor voltage Is Fan Feed Back voltage 1 5V No Change the motor Yes 8 Explain to customer ...

Page 69: ... to make TEST MODE If you push the test button on the Main PCB the refrigerator will be enter the TEST MODE 2 How to remove Terminal Position Assurance TPA 1 time Comp Damper All FAN on All things displayed 2 times Damper closed 22 22 displayed 3 times Forced defrost mode 33 33 displayed Main PCB AC TPA DC TPA ...

Page 70: ...3 F 5 C 32 F 0 C 41 F 5 C 50 F 10 C 59 F 15 C 68 F 20 C 77 F 25 C 86 F 30 C 95 F 35 C 104 F 40 C RESISTANCE 73 29 53 63 39 66 29 62 22 33 16 99 13 05 10 10 7 88 6 19 4 91 3 91 3 14 2 54 2 07 1 69 1 39 VOLTAGE 4 09 V 3 84 V 3 55 V 3 23 V 2 89 V 2 56 V 2 23 V 1 92 V 1 63 V 1 38 V 1 16 V 0 97 V 0 81 V 0 67 V 0 56 V 0 47 V 0 39 V ...

Page 71: ...23 F 5 C 32 F 0 C 41 F 5 C 50 F 10 C 59 F 15 C 68 F 20 C 77 F 25 C 86 F 30 C 95 F 35 C 104 F 40 C RESISTANCE 225 1 169 8 129 3 99 30 76 96 60 13 47 34 37 55 30 24 13 19 53 15 91 13 03 10 74 8 89 7 40 6 20 VOLTAGE 4 48 V 4 33 V 4 16 V 3 95 V 3 734 V 3 487 V 3 22 V 2 95 V 2 67 V 2 40 V 2 14 V 1 89 V 1 64 V 1 45 V 1 27 V 1 10 V 0 96 V ...

Page 72: ...lfunction this process is repeated 3 times If the fan motor is determined to be defective an error code will be shown in the display for 30 minutes At this point the process will be repeated until the fan motor operates normally If normal operation is achieved the error display disappears and the MICOM is resets automatically No signal Error Display 15s 10s 15s 10s 15s Normal drive No signal Repea...

Page 73: ...et a ohmmeter to the 2 housing pin Measure the 2 pin connected to Fuse M If the ohmmeter indicate below 0 1ohm fuse m is a good condition But if infinite the part is bad How to Measure Sensor Set a ohmmeter to The 2housing pin Measure the 2 pin connected to Sensor If the ohmmeter indicate 11 at room temperature Sensor is good When check the ohm at other temperatures Check the sensor manual Standar...

Page 74: ...ot when we check the resistance How to Measure Set a ohmmeter connect to The housing pins Measure the pins connected to Sheath Heater If the ohmmeter indicates V øV Watt R is on a good condition ex watt 200W voltage 115V R 115x115 200 66 Infinitive value implies sheath heater is disconnected Standard Sheath heater at all temperature Test Point 1 to 2 Ressult 62 70 1 2 ...

Page 75: ...ot when we check the resistance How to Measure Set a ohmmeter connect to The housing pins Measure the pins connected to Sheath Heater If the ohmmeter indicates V øV Watt R is on a good condition ex watt 85W voltage 115V R 115x115 85 156 Infinitive value implies sheath heater is disconnected Standard Sheath heater at all temperature Test Point 1 to 2 Ressult 144 167 1 2 ...

Page 76: ...ot when we check the resistance How to Measure Set a ohmmeter connect to The housing pins Measure the pins connected to Sheath Heater If the ohmmeter indicates V øV Watt R is on a good condition ex watt 350W voltage 115V R 115 ø115 350 38 Infinitive value implies sheath heater is disconnected Standard Sheath heater at all temperature Test Point 1 to 2 Ressult 78 6 86 8 1 2 ...

Page 77: ... Voltage between pin 13 and 14 3 ඖ Check the Reed S W resistance No Magnet Magnet Near the Switch 0DJQHW PXVW EH FHQWHU RI 6ZLWFK Resistance Service Action h CON5 Magnet Center Switch Center O Good position Bad position X Magnet Center Switch Center 6WDWXV Q FDVH RI RRU ORVH 9 5HVXOW 69 FWLRQ Ȥ KHFN 5HHG 6 KHFN DUQHVV disconnection I 1R RN FKDQJH 3 Q FDVH RI RRU 2SHQ 9 1 Check Reed S W 2 Check Har...

Page 78: ...VKQP JCPIG 4GGF 5 9 4GOQXG UETGY LVDVVHPEOH RXVLQJ KHFN 5HVLVWDQFH RI 5HHG 6 LI LW LV 1 FKDQJH LW 1XPEHU VVHPEOH 5HHG 6 WR KLQJH FRYHU DQG VVHPEOH 5HHG 6 RXVLQJ VVHPEOH 6FUHZ WR KLQJH FRYHU Push Hook Push Hook Push first Push second ...

Page 79: ...oltage between pin 21 and 22 3 ඖ Check the Reed S W resistance No Magnet Magnet Near the Switch CON7 Resistance Service Action Magnet must be center of Switch Magnet Center Switch Center O Good position Bad position X Magnet Center Switch Center 6WDWXV Q FDVH RI RRU ORVH 9 5HVXOW 69 FWLRQ Ȥ KHFN 5HHG 6 KHFN DUQHVV disconnection I 1R RN FKDQJH 3 Q FDVH RI RRU 2SHQ 9 1 Check Reed S W 2 Check Harness...

Page 80: ... UETGY CPF FKXKFG JQWUKPI KXKFG 4GGF 5 9 3XVK WKH SDUW RI KRRN DQG GLYLGH 5HHG 6 KHFN WKH 5HHG 6 UHVLVWDQFH DQG LI LW LV 1 KDQJH LW 1XPEHU 2WUJ VJG 4GGF 5 9 VQ FKTGEVKQP QH VJG CTTQY VVHPEOH 6FUHZ DIWHU VVHPEOH 5HHG 6ZLWFK KRXVLQJ Push First push Second push ...

Page 81: ...on Dispenser DC Motor When customer pushes the dispenser button It pulls duct door of dispenser internal and ice dispense from ice bank How to Measure Standard Dispenser DC Motor Dispenser DC Motor Test Points 1 to 2 Result 9 9 12 1 1 2 ...

Page 82: ...Solenoid Test Points 1 to 3 Result 31 1 42 09 Separate the housing Measure the resistance between 1 and 2 Check the resistance between connectors In door motor 1 2 and In door motor 1 3 It means check whether or not applying an Electric current If there is resistance it means the geared motor or solenoid is not inferiority 1 2 3 1 1 2 Separate the housing Measure the resistance between 1 and 3 1 2...

Page 83: ...ensor Function Flow Sensor in machine room measure the water quantity from city water to water filter in refrigerator How to Measure Standard Flow Sensor in machine room Test Points Red wire to Black wire Result 4 30 ...

Page 84: ...eset LED blink 1 LED blink 7 Replace Driver PCB LED blink 8 Reset LED blink 8 Replace Driver PCB Replace Driver PCB LED blink 5 LED blink2 Heavy Repair Heavy Repair Comp Work Comp Check Replace Comp Comp Work Comp Check Harness Check Leakage Recheck Reset LED blink6 Heavy Repair Heavy Repair Recheck Replace Driver PCB Comp Work Comp Check Refrigerant leak IPM output 80V 20 Refrigerant leak Recheck...

Page 85: ...amp Measure the voltage between the POWER and COMM pins of the connector as shown below Check to make sure compressor is receiving voltage from IPM In order to determine whether the compressor is operating normally check the output voltage during the refrigeration cycle After initial power up when the compressor begins to operate wait 10 minutes before checking The compressor is operating normally...

Page 86: ...rip Check B2 Compressor Doesn t work Y N Compressor Works Intermittently Capacitor Spec Check C Compressor Damage Check C Replace Capacitor Replace Compressor N N Reset Power Stroke Trip Occur Y Repeat Check Procedure Harness Connecting Check C Fix Harness N N Cycle Check E Fix Cycle Replace Driver PCB OK NG Purpose Prevent abnormally long piston strokes Case 1 If compressor doesn t work and LED b...

Page 87: ... off and tries to restart within 2 5 minutes B4 LED blinks six times then repeats Current Trip Blink Blink Blink Blink Blink Blink OFF Protection logic Check B Blink 6 time Current Trip Check B4 Compressor Intermittently works Y Capacitor Spec Check C2 Compressor Damage Check C3 Replace Capacitor Replace Compressor NG NG Reset Power Y Current trip Occur Y Repeat Check Procedure IPM Check B5 Y Repl...

Page 88: ... off and tries to restart within 2 5 minutes B4 LED blinks six times then repeats Current Trip Blink Blink Blink Blink Blink Blink OFF Protection logic Check B Blink 6 time Current Trip Check B4 Compressor Intermittently works Y Capacitor Spec Check C2 Compressor Damage Check C3 Replace Capacitor Replace Compressor NG NG Reset Power Y Current trip Occur Y Repeat Check Procedure IPM Check B5 Y Repl...

Page 89: ...pressor Doesn t work Y N Repeat Check Procedure Replace Drive PCB N Y Check IPM visual inspection turn off Short Test Point A Power Reset Compressor Damage Check C3 Replace Compressor NG Y Modify 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 A ...

Page 90: ...nt B 6 8ohm Resistance at Point D 6 8ohm Replace Compressor Problem B D Check wiring to compressor Y N N Y Y Y N N Check Compressor terminals Harness Problem Y N Y Measure the resistance at each point except point C Dead short check measure the resistance between power line in compressor and earth ground in refrigerator Inf Ohm Dead short check P C Resistance FC90LBNA Co Po N C μ Po Power Co Commo...

Page 91: ...ow out with the refrigerant at leak point Temp of compressor and discharge line is normal to slightly higher High side pressure is normal to slightly higher than normal conditions This is because condenser cannot condense the air that is trapped in the condenser The high side pressure and temperature will not mimic the low side pressures and temperatures Over charging Refrigerant Low side Refriger...

Page 92: ...ING HIGH VOLTAGE Step 1 Open PCB cover Step 2 Check for blinking frequency of LED and PCB When compressor is normal it does not blink Refer to the next page to find out what actions to take according to how many times LED blink LED Lamp ...

Page 93: ...r the second action replace compressor Circuit over current error Or cycle error 1 After resetting power check if it is running normal 2 If the same symptom arises after the first action 3 If the same symptom arises after the second action replace compressor PCB parts defect IPM 1 After resetting power check if it is running normal 2 If the same symptom arises after the first action replace PCB 1 ...

Page 94: ...rly Seal liquid foods with wrap Put in foods after they have cooled down Don t open the door too often and close it firmly Condensation forms in the Exterior Case Check if the ambient temperature and humidity of the surrounding air are high Is there a gap in the door gasket Wipe moisture with a dry cloth It will disappear in low temperature and humidity Fill up the gap There is abnormal noise Is t...

Page 95: ...ing of the Refrigerant MOISTURE CLOG Cooling operation stops periodically Flowing sound of refrigerant is not heard and frost melts Lower than ambient temperature Cooling operation restarts when heating the inlet of the capillary tube CLOGGED BY DUST COMP RESSION Freezer and Refrigerator don t cool Low flowing sound of refrigerant is heard and frost forms in inlet only A little higher than ambient...

Page 96: ...Test Very Slow None Equalization Test Very Fast Fast Very Fast Inefficient Compressor Partial Restriction Complete Restriction Condenser Temperature Cap Tube Sound Yes No Air Low Side Leak Loss of Change Very Slow Faint Hotter than Normal None to Weak Room Temperature Compressor Not Pumping Trace of Oil Undercharge The equalization test is trying to restart a compressor using a start kit after it ...

Page 97: ...ray into the ICE BIN Performs Ice Making Mode afer supplying water by operating the SOLENOID in ICE VALVE With the detect lever checks if the ICE BIN is full While ICE OFF indicator is on icemaker stops making ice But you can disense the ices until the ices run out from the ice stoare Test Button Walls until water becomes cold after starting the icemaking operation To operate LINE and SERVICE pres...

Page 98: ...o select the on position Check the water lines at the back of the unit for any kinks or leaks that could be inhibiting water flow to the icemaker If the water lines at the back of the unit art kinked straighten them out If there are any leaks refer to the water line installation section of the Use and Care Guide At least 12 hours are needed to make the first ice after installation And one day is n...

Page 99: ...s Control Lock is activated 3 The Control Lock button is the only control feature that remains active in the locked state The buzzer sound other control buttons and the dispenser are deactivated 4 To release from the locked state press and hold the Control Lock button again for 3 seconds 13 1 5 Water Filter condition display function 1 There is a replacement indicator light for the water filter ca...

Page 100: ...nto the cup When after initially esabl ishing the water comes out the water tack inside fills and until at the time of quality the hour is caught 13 1 6 Air Filter condition display function 1 There is a replacement indicator light for the air fresh filter cartridge 2 Fresh Air filter needs replacement once every 6 months 3 When the Changer Icon lights on you must replace the filter 4 After replac...

Page 101: ...mpartment Fan 1 The Icing Fan is controlled by the the sensor on the top of the ice compartment 2 The Failure sensing method is the same as in the fan motor of the freezer refer to failure diagnosis function table for failure display 13 1 14 Refrigeration room Fan Motor 1 The refrigeration room fan is switched ON and OFF in conjunction with the refrigeration room temperature 2 The Failure sensing ...

Page 102: ...d Freezer Display LED check function If simultaneously pressing Ultra Ice button and freezing temperature adjustment button for a second display LED graphics on If releasing the button the LED graphic displays the previous status You can check the error code Within 3 hour Period from initial error 13 1 19 Auto pantry 1 The temperature control will automatically start upon the selected Auto Pantry ...

Page 103: ...625A 623B 616J 623B 616J 603C S04 627B S04 627A S04 603B 619A 617A 616G VALVE WATER TUBE PARTS ...

Page 104: ...406D B01 610D S04 207A 302B 400A 408A 302C 401A 408B 310B 306A 300A 314A 317A 318A 301A 308B 403B 312C 312D 404A 410G 624C 624G 626A 603C 603E 624E 500P 105A 105D 409F 405J 271D 315C 315B 315C 315B 103B 103A 619D 610F 610C 406F 249D S14 B02 262B 249V 120A 409H 282G 405L 405G 404C 405E 405I 327B 628A 631C B02 S14 262H 249C 120B 145B S10 145B 281H 146C 503D 282H 158C 105B 402A 402A 145A 502C 410P 41...

Page 105: ...CASE PARTS ...

Page 106: ...CASE PARTS ...

Page 107: ...PARTS CAUTION Use the part number to order part not the position number 132P 136A 131A 136B 136C 249M 133C 133C 132Q 249L 134A S04 S04 145G 145I 145C 145F 145M 145J 145H 136E 145K 205D 253D 150C 150B 237C 150D ...

Page 108: ...REFRIGERATOR PARTS CAUTION Use the part number to order part not the position number 142D 142A 142B 143A 141F 141B 141H 141F 141B 141H 141A 141A 143A 162A 162B 145D 132R 142D 142A 142B 144A ...

Page 109: ...1C 241A 241B 619B 243D 243A 262E 262C 243B 262C 615A 233B 231B B06 B06 244A B06 244A 231A 233A 212G B06 250A 619C 241K 241K 241K 312B 241E 624A 405M 409I 405M 235A 205E 250B 281G 249R 249F 281G 281D 281E 249P 249E 281F 281F 250B 249K 203A B06 212D B06 201A 249S 200A 253J 500C 250F 250K 407G ...

Page 110: ...DOOR PARTS ...

Page 111: ...DISPENSER PARTS 405A 278D 402C 276B 275A 276A 276I 501A 279A 278B 500J 276J 267B 279J 281A ...

Page 112: ...ICE MAKER ICE BIN PARTS 600A 630F 630B 630A 630H 630G 630C 630Q 630E 630D 611A 612A 630J 606A 630J 607A ...

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