Samsung RFG297AABP, Service Manual

Page 1: ...RFG297AAPN XAA REFRIGERATOR REFRIGERATOR CONTENTS 1 PRECAUTIONS SAFETY WARNINGS 4 2 PRODUCT SPECIFICATIONS 8 3 DISASSEMBLY AND REASSEMBLY 26 4 TROUBLESHOOTING 52 5 PCB DIAGRAM 103 6 WIRING DIAGRAM 108 7 SCHEMATIC DIAGRAM 112 For the latest parts information Please access to our service web site North America http service samsungportal com RFG297AA ...

Page 2: ... may result in personal injury and property damage The manufacturer or dealer cannot be responsible for the interpretation of this information SAMSUNG ELECTRONICS AMERICA INC Technical Service Guide Copyright ⓒ2008 All rights reserved This service guide may not be reproduced in whole or in part in any form without written permission from the SAMSUNG ELECTRONICS Company WARNING ...

Page 3: ... Gallon Door Bin 39 3 16 Vertical Hinged Section 40 3 17 Evaporator Cover In Refrigerator 41 3 18 Evaporator In Refrigerator 42 3 19 Freezer Door 43 3 20 Pull Out Drawer 44 3 21 Ice Maker 45 3 22 Freezer Light 46 3 23 Door Switch In Freezer 46 3 24 Evaporator Cover In Freezer 47 3 25 Evaporator In Freezer 47 3 26 Machine Compartment 48 3 27 Electric Box 51 4 TROUBLESHOOTING 52 4 1 Function for fai...

Page 4: ...nal diode voltage 94 Inverter controller board connector location 95 Inverter pcb circuit diagram 96 4 3 1 inrush current protecting circuit 97 4 3 2 power source hybrid ic 98 4 3 3 location sensing resistance area 99 4 3 4 sensing current area 100 4 3 5 comp operating signal area 101 4 3 6 bootstrap charging area 102 5 PCB DIAGRAM 103 5 1 PCB Layout with part position 104 5 2 PCB Layout with part...

Page 5: ...pared with the state before disassembly Check the use circumstance of refrigerator If the refrigerator is installed at the place that is damp or wet or status of installation is unstable change the installation place Ground the refrigerator properly Particularly Be sure to earth when there is a risk of an electric leakage by humidity or wetness Do not use multi plugs in a plug socket at the same t...

Page 6: ...Caution Caution Unplug Use the rated components on the replacement Check the correct model rated voltage rated current operating temperature and so on On repair make sure that the wires such as harness are bundled tightly Bundle tightly wires in order not to be detached by the external force and then not to be wetted Check if there is any trace indicating the permeation of water If there is that k...

Page 7: ...users to store articles on the product Opening or closing the door may cause things to fall down which may cause injury Prohibition Warning Caution Do not allow users to disassemble repair or alter It may cause fire or abnormal operation which leads to injury Do not disassemble Do not allow users to plug several appliances into the same power receptable May cause abnormal generation of heat or fir...

Page 8: ...e rest of the flooring This surface should be strong enough to support a fully loaded refrigerator or approximately 660lbs 299kg FLOORING Protect the finish of the flooring Cut a large section of the cardboard carton and place under the refrigerator where you are working When moving be sure to pull the unit straight out and push back in straight MOVING ...

Page 9: ...ECIFICATIONS 11 2 3 INTERIOR VIEWS 12 2 4 MODEL SPECIFICATION 13 2 5 MODEL SPECIFICATION SPECIFICATION CHART 14 2 6 DIMENSIONS OF REFRIGERATOR INCHES 17 2 7 OPTIONAL MATERIAL SPECIFICATION 18 2 8 REFRIGERANT ROUTE IN REFRIGERATION CYCLE 19 2 9 COOLING AIR CIRCULATION 20 ...

Page 10: ... more efficient Food odor from the refrigerator does not affect food in the freezer due to separate air flow circulation 16 Pizza Corner Can be used for 16 pizza if the flap is turned up Ice and Water Dispenser The ice and water dispenser provides ice and cold water at any time Secure Auto Close Door System Secure Auto Close Door System Cool tight doors Energy saving Preventing sweat on fridge doo...

Page 11: ... dimension of the right side drawer is 6 4 H x W with the shelf being raised So the right side drawer can be pulled out with the left door closed NO Item Details Changing Items New Model The freezer door is more user friendly So it comes as much convenient ...

Page 12: ...harge R134a 5 64 oz 160g Compressor BK190C L2C 1314 Btu hr 0 385kw Compressor oil Freol α15c RCapillarytube Dia Length 0 032 118 0 0 8 82 2m mm m 3 30 00 00 0m mm m FCapillarytube Dia Length 0 032 118 0 0 8 82 2m mm m 3 30 00 00 0m mm m Clearancemustbeprovidedforaircirculation AT TOP 1 2 25 5m mm m AT SIDES 1 2 25 5m mm m AT REAR 2 5 50 0m mm m Fan Fan Fan Fan Fan Fan Air inlet Air inlet Air inlet...

Page 13: ...or Auto Door Closer Water Filter Dairy Compartment Door Bins Cool Select Pantry TM Light Vertical Hinged Section Vegetable Fruit Drawers Tilting Pocket Light Pull Out Drawer Freezer Drawer Bin Slide Shelf Quick Space Glass Shelf Ice Maker Foldable Shelf Slide Shelf ...

Page 14: ...er level Sound Pressure level Cooling Speed Min Product Zone Appearance ITEM SPEC 89 6 32 C 109 4 43 C Temperature Distribution Fridge Run Time Performance Noise Cooling Tech Door Shape Special Room 250 250 26 0 2 0 18 0 5 0 2 0 2 0 70 46dB 45dB MAYTAG MFI2568AES Mono Cooling Contour Pantry 246 575 27 2 1 6 20 9 5 9 0 6 1 1 60 7 47 0 48 2 LG LFX25960ST Mono Cooling Contour Pantry 224 232 28 8 1 8 ...

Page 15: ...tinum Molding I Black Creamy STS Snow White Creamy STS Compressor Rated Frequency and Frequency Refrigerant Foaming Agent Refrigerant Input Amount Type Refrigerator Motor Rated Consumption Power Electric Heater Rated Consumption Power RFG297AA Ice Water Dispenser with Pantry 35 3 4 inch 908mm 29 1 8 inch 740mm 32 7 8 inch 836mm 35 3 4 inch 905mm 68 3 4 inch 1744mm 70 Inch 1778mm 28 5 Cu ft 807 1ℓ ...

Page 16: ...igerant Model Starting type Oil Charge Freezer Refrigerator BK190C L2C BLDC FREOL α 15c SPLIT FIN TYPE SPLIT FIN TYPE Forced and Natural Convection Type Molecular shieve XH 9 R 0 032 x118 0 82mmx3000mm F 0 032 x118 0 82mmx3000mm R134a 6hr 10min 12 23hr vary according to the conditions used 6 11hr vary according to the conditions used 12 1min THERMISTOR 502AT 5 0 at 77 25 THERMISTOR 502AT 5 0 at 77...

Page 17: ... Heated at F Defrost Heated at R Defrost Door Switch FRE REF REF ICE ROOM Power Cord Earth Screw Bimetal thermo for Preventing Overheating of Refrigerator Lamp Specification REG297AA Electric Components AC 115V 240W AC115V 120W AC115V 2W AC115V 8W AC115V 4W DC 12V 2W AC125V 6A AC250V 3A Off 140 60 On 104 40 4TM445PHBYY 82 257 41 125 5 156 2 48 2 69 9 AC 115V 60Hz DC12V FDQT06SS3 DC12V DREP5020LB D...

Page 18: ...8 740mm 3 3 8 87mm 21 5 8 549mm 42 1 2 1080 5mm 9 16 15mm 69 3 4 1778mm 1 3 34mm 3 16 5mm 32 7 8 836mm 35 5 8 905mm 35 3 4 908mm 24 1 4 618mm 2 1 2 64 5mm 54 1 2 1384mm 18 3 4 475mm 47 3 4 1214mm 2 6 Dimensions of Refrigerator Inches ...

Page 19: ... PRODUCT SPECIFICATIONS 2 7 Optional Material Specification Part Name FILTER WATER ASSY DA29 00003B ASSY PACKING SUB DA99 00240S INCANDESCENT LAMP 4713 001223 Part Code AMOUNT 1 1 1 LED LAMP DA96 00329A 1 ...

Page 20: ...apillary Tube Refrigerator Evaporator Freezer Evaporator Suction Pipe Compressor 2 Compressor Sub condenser Hot Pipe Back Cluster Pipe Dryer F Capillary Tube Freezer Evaporator Suction Pipe Compressor PRODUCT SPECIFICATIONS 2 8 Refrigerant Route in Refrigeration cycle ...

Page 21: ...20 PRODUCT SPECIFICATIONS 2 8 1 PRINCIPLE OF FREEZEER ...

Page 22: ...tside of the product An old model Make them cluster at the lower part of product and radiate heat manually by fan Radiate condensed potential heat up to liquefy completely and make change the state without changing the gas temperature itself Pipe thickness Low pressure 6 3mm High pressure 4 7mm Capillary About 0 4 0 8mm Condenser length Based on 300ℓ 26 5 M Assistance 5 M HOT PIPE 6 6 M CLUSTER PI...

Page 23: ...rature and pressure refrigerant gas flowed out from evaporator and make high temperature and pressure refrigerant liquid in the compressor and send it to the condenser 2 Type of Condenser a Back and forth motion type A method that pistol makes back and forth motion through shaft and cylinder of motor rotation and compresses Used for household refrigerant b Rotary Type A method that inhales the ref...

Page 24: ...on by the interaction of synthetic insulating material insulator Influence of foreign substance Increase of condensed temperature Increase of temperature Decrease of cooling efficiency Shorten the life by friction between oil and foreign substance in the compressor Accumulator 1 Role To send a pure refrigerant gas to compressor by removing completely the refrigerant liquid from evaporator If a ref...

Page 25: ... Capillary Tube Freezer Capillary Tube Fridge Evaporator Freezer Evaporator Accumulator Suction Pipe Connected Capillary Fridge Hot Pipe Dryer Sub Condenser Fin Condenser Cluster Rear HM Cycle Compressor Sub Condenser Hot Pipe Dryer Capillary Tube Refrigerator Evaporator Freezer Evaporator Suction Pipe Compressor ...

Page 26: ...25 Refrigerator PRODUCT SPECIFICATIONS 2 9 Cooling Air Circulation Freezer ...

Page 27: ...SELECT PANTRY 35 3 11 WATER TANK 36 3 12 MOTOR DAMPER 37 3 13 WATER FILTER DISASSEMBLY 37 3 14 WATER FILTER REASSEMBLY 39 3 15 GALLON DOOR BIN 39 3 16 VERTICAL HINGED SECTION 40 3 17 EVAPORATOR COVER IN REFRIGERATOR 41 3 18 EVAPORATOR IN REFRIGERATOR 42 3 19 FREEZER DOOR 43 3 20 PULL OUT DRAWER 44 3 21 ICE MAKER 45 3 22 FREEZER LIGHT 46 3 23 DOOR SWITCH IN FREEZER 46 3 24 EVAPORATOR COVER IN FREEZ...

Page 28: ...efrigerator in a damp place or place where it may come in contact with water Deteriorated insulation of electrical parts may cause an electric shock or fire The refrigerator must be grounded You must ground the refrigerator to prevent any power leakages or electric shocks caused by current leakage from the refrigerator Do not put bottles or glass containers in the freezer When the contents freeze ...

Page 29: ...electrical connectors 4 above the upper left door hinge Disconnect the water tube 5 by pulling the tube fitting 6 apart as shown in the picture 2 Remove the 3 screws holding down the Top Table and remove the Top Table 2 4 Remove the 3 hex head bolts 7 attatched to the upper left and right door hinges with a Wrench 10mm With a Philips head screwdriver remove the ground screw 8 attatched to the uppe...

Page 30: ...o screws 10 attatched to the lower left and right door hinges With a wrench 10mm remove the 2 flat head screws 11 attatched to the lower left and right door hinges Remove the lower left and right door hinges 12 12 10 11 COVER VINYL Part Name How To Do Descriptive Picture 1 Using a wrench unscrew the two screws And disassemble the door handle 2 Remove the cover vinyl of door ...

Page 31: ...Picture 1 Remove the Cap Door with a flat blade screwdriver 2 Remove 4 screws 3 Lift up the handle to have the Slider Handle Fre 1 pushed back 4 After having the Slider Handle Fre 1 pushed back screw up at the hole 5 Remove the door handle by lifting it up 1 1 3 3 Door Handle Freezer ...

Page 32: ...he lamp cover by pulling it down as pushing the rear of lamp cover 2 Remove the screw And separate the LED panel Cover Display Part Name How To Do Descriptive Picture 1 Hold the Ice Water select tab and pull it forward to take off the Display Panel Take care not to break it 2 Disengage the housing connect of display cover 3 Remove 4 screws of cover display ...

Page 33: ...3 6 Water Dispenser Water Dispenser Part Name How To Do Descriptive Picture 1 Disengage the 3 Housing Connectors 2 Remove 2 screws of the Case Ice Route Assy 3 Pull the Case Ice Route Assy 4 Push the hook and remove the Micro Switch ...

Page 34: ...e shall be assembled inside of hose Otherwise assemble cannot be accomplished 2 When assembling Cover Display first insert it from leftside and then assemble to rightside Otherwise the hook can be broken 3 7 Glass Shelf Glass Shelf Part Name How To Do Descriptive Picture Remove the shelf by lifting the front part of the shelf up and pulling it out hose ...

Page 35: ...he Folderble Glass Shelf Vegetable Fruit Drawers Shelf Part Name How To Do Descriptive Picture 1 Remove the vegetable fruit drawer by pulling the roller part and lifting it up 2 Remove the vegetable fruit drawer shelf by pulling it out Refer to the picture Vegetable Fruit LCD LAMP Part Name How To Do Descriptive Picture 1 Remove 1 screw 2 Disengage the housing connector ...

Page 36: ... Remove the cool select pantry cover by lifting the central part of the cover while pushing it to the left Cool Select Pantry Shelf 1 Remove the cool select pantry shelf by lifting the front part of the shelf while pulling it Cool Select Pantry Rail 1 Remove the cool select pantry rail by unscrewing the 3 screws and pulling the rail 2 Disconnect the housing connector from the internal rail part Re...

Page 37: ...dge Before disassembling the Water Tank take out shelves and drawers and pantry located in front of the Water Tank 1 Remove 2 screws of the Water Tank cover 2 Disengage the housing connector 3 Remove the 2 screws attached to the Water Tank Heater Remove the Water Tank heater 4 Remove the 2 screws attached to the Water Tank Remove the Water Tank cover ...

Page 38: ...pressor cover 5 Remove the water valve fixed by the screw 6 Disconnect the water tube by pushing the tube fitting apart as shown in the picture The other Water Tube is located in the Top Table of the refrigerator Before disassembling the Water Tube take out the Top table 7 Disconnect the Water Tube by pushing the tube fitting apart as shown in the picture 8 Remove the Water Tank by pulling the Wat...

Page 39: ...ove the screw part of lower motor damper part and then push the motor damper down 2 Disengage 2 housing connectors from the rear motor damper Refer to the picture Water Filter Part Name How To Do Descriptive Picture 1 Remove the shelf by lifting the front plane of the shelf up and pulling it out 2 Remove the water filter by turning it clockwise Refer to the picture ...

Page 40: ... by lifting it up Refer to the picture Water Filter Part Name How To Do Descriptive Picture 1 Place the part of ⓐ arrow that is indicating in the picture in the middle of the front filter cover and push it up 2 Turn the water filter counterclockwise until central horizontal line of filter cover and both ends of water filter label are aligned Refer to the picture ⓐ ...

Page 41: ... Name How To Do Descriptive Picture 1 Remove 2 screw cap parts with a flat blade screwdriver Refer to the picture 2 Unscrew 2 screws 3 Disengage the internal housing connector of the vertical hinge 4 Remove the vertical hinged section by lifting the vertical hinge up Refer to the picture ...

Page 42: ... angle cap with a flat blade screwdriver Refer to the picture 2 Unscrew 4 screws 3 Remove the the lower part of angle mid by pulling it out and pushing it down Refer to the picture 4 Remove the hook by pulling it from the lower part and pushing the cover down Refer to the picture 5 Disconnect the housing connector of the rear plane Refer to the picture ...

Page 43: ...iptive Picture 1 Remove the the housing cover by pushing both lateral sides of the housing cover and pulling it out Refer to the picture 2 Disconnect the housing connector part Refer to the picture 3 Unscrew 2 screws 4 Remove the evaporator by lifting the bottom side of it up and pulling it out Refer to the picture ...

Page 44: ...ull the drawer open to full extension 2 Remove the tilting Pocket by pulling the both brackets upward at the same time 3 Take out the lower basket by lifting the basket up from rail system 4 Unscrew 4 bolts 2 bolts each on the both sides 5 Lifting up the freezer door remove the freezer door from the rail ...

Page 45: ...3 20 Pull Out Drawer Door Handle Freezer Part Name How To Do Descriptive Picture 1 Slide the drawer in as much as possible 2 Lift the drawer up 3 Remove the pull out drawer by lifting the bottom part of drawer bin and pulling it out ...

Page 46: ...e 1 screw of the Cover 1 Pull the lever forward and take out the ice bucket 3 Disassemble the cover with a flat blade screwdriver and pull it out 4 Disengage the 2 housing connectors 5 Push the hook and pull the Ice Maker out 6 To disassemble push the tab and pull the Case Auger and the motor out lever ...

Page 47: ...me How To Do Descriptive Picture 1 Remove the freezer drawer bin by using a flat blade screwdriver Refer to the picture 2 Disconnect the housing connector part Freezer Light Part Name How To Do Descriptive Picture 1 Remove the light by pulling the light cover down while pushing the rear plane of light cover ...

Page 48: ... cover part and pulling it out Remove the housing connector part 2 Remove the evaporator by pulling the lower part of the evaporator while lifting it up Evaporator Cover In Freezer Part Name How To Do Descriptive Picture 1 Remove the freezer door and freezer drawer by pulling out the drawer and then unscrewing 2 screws 2 Lift up the evaporator cover 3 Disengage the 3 housing connectors and remove ...

Page 49: ...picture 3 Remove the hooker of support circuit motor by lifting the hooker up and pulling it out 4 Remove the screw with a flat blade screwdriver Refer to the picture 5 Remove the motor fan by pulling the fan out while graping the motor part Refer to the picture 6 Unscrew 2 screws fixed in the motor 7 Remove the hook of the motor cover with a flat blade screwdriver and then remove the motor ...

Page 50: ... Remove the relay O L with a flat blade screwdriver Refer to the picture 1 Unscrew the screw which is fixing the Water Valve 2 Remove the hook part of the hose by pushing it down 3 Remove 2 water hose parts while pushing the upper part of Refer to the picture 4 Disengage 2 housing connectors 5 Remove the hose connected by the nut with a wrench 8mm ...

Page 51: ...Do Descriptive Picture 1 Unscrew 2 screws 2 Disengage the housing connector 3 Unscrew 3 earth screws 4 Remove the cover by pushing the hook up using a flat blade screwdriver Refer to the picture 5 Disengage the housing connector to separate the power cord and noise filter ...

Page 52: ...ar side of the appliance 2 Unscrew 2 screws of the PCB cover 3 Disengage all housing connectors from the main PCB 4 Unscrew 2 PCB fixing screws 5 Remove the main PCB by lifting the upper part of the hook up Refer to the picture 1 Remove the cover PCB and then disengage the housing connector connected with main PCB Remove the SMPS PCB by pushing the lower part of the hook down ...

Page 53: ...ARMSOUNDCONTINUOUSWITHOUTSTOP RELATEDWITHBUZZERSOUND 80 4 2 9 IFPANELPCBDOESNOTWORKNORMALLY 82 4 2 10 IFPANTRYPANELPCBISNOTWORKINGNORMALLY 83 4 2 11 WHENREFRIGERATORROOMLAMPDOESNOTLIGHTUP 84 4 2 12 IFICEWATERISNOTSUPPLIED 86 4 2 13 IFWATERISNOTSUPPLIED 87 4 2 14 IFCUBEDORCRUSHEDICEISNOTSUPPLIED 88 4 2 15 IFCOVERICEROUTEMOOR GEARDMOTOR ISNOTWORKINGNORMALLY 89 4 2 16 IFPHOTOSYNTHETICLEDLAMPDOESNOTWO...

Page 54: ...ne more time FF 3 will be displayed FF 2 and FF 3 means manual operation2 and 3 separately These 3 functions operate with different RPM of COMP 1 3 If manual operation is selected compressor will run at once without 5 minutes delay in any mode If the refrigerator is on the defrost cycle at the moment defrost will be finished and manual operation will begin Be careful if manual operation get starte...

Page 55: ... is pressed one more time defrosting of fresh food and freezer compartments will be canceled at the same time and will return to the normal operation Or all test functions will be canceled by turning main power ON and OFF 3 Test cancel mode 1 1 If there is no answer for 10 seconds after the panel micom received the requirement of communication Pc Er display on the panel PCB will be ON OFF alternat...

Page 56: ...2 1 If Energy Saver Key Lighting Key are pressed simultaneously for 8 seconds during normal operation the temperature setting display will operate for 2 seconds ON OFF 0 5sec each If Energy Saver Key Lighting Key are pressed simultaneously for 8 seconds including above 2 seconds self diagnostic function will be selected 2 2 At this moment self diagnostic function will be returned with buzzer sound...

Page 57: ...0 ⓖ R 10 ⓖ Trouble contents Sensor system in ICE MAKER errors Sensor system in FF compartment errors Defrost Sensor system in FF compartment errors Fan motor system in FF compartment errors ICE MAKER operation system errors Defrost system in FF compartment errors Snesor external system errors Sensor system in FZ compartment error Defrost Sensor system in FZ compartment errors Fan motor system in F...

Page 58: ...using part contacterror disconnection shortcircuitortemperaturefuseerror Displayerror thedefrostingdoesnotfinishthoughfreshfoodcompartment defrostisheatingcontinuouslyformorethan80minutes After separating MAIN PCB CN70 CN71 from PCB the resistance value between 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 ...

Page 59: ...ng However It means that micom signal is outputting it does not mean whether load is operating or not That is to say that though load operation is displayed load could not be operated by actual load error or PCB relay error etc This function would be applied at A S 4 Load condition display function will maintain for 30 seconds and then normal condition will be returned automatically 5 Load conditi...

Page 60: ...0 ⓐ F 10 ⓑ F 10 ⓓ F 10 ⓔ R 10 ⓐ R 10 ⓑ Operation contents When FF compartment FAN operates with high speed applicable LED ON When FF compartment FAN operates with low speed applicable LED ON When FF compartment defrost heater operates LED ON When refrigerator is plugged initially LED ON When ambient temperature is more than 93 34 C LED ON When ambient temperature is less than 72 22 C LED ON When a...

Page 61: ...er compartments case will be explained only because all options are operated with the same method according to the option table TROUBLESHOOTING If Freezer Key lighting Key are pressed simultaneously for 12 seconds option setting mode will be started KEY operation method for changing to option mode Code Up Code Reference Value Reference Value Up Code Down Reference Value Down KEY control method aft...

Page 62: ... 4 2 0 C Refer to the picture changing the freezer compartment temperature 4 Option changing method as above is the same as all RFG297 model 5 By the same method as above it is possible to control the fresh food compartment temperature water supply ice maker harvest temperature time defrost return time hysteresis by temperature notch gap by temperature etc 6 Option function is set in the EEPROM at...

Page 63: ...5 0 0 0 1 0 5 2 1 0 3 1 5 4 2 0 5 2 5 6 3 0 7 3 5 1 0 5 2 1 0 3 1 5 4 2 0 5 2 5 6 3 0 7 3 5 8 4 0 FZ compartment Code ex If you want to change the freezer compartment standard temperature to 4 2 C Settingvalue Temp compensation 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 0 0 1 0 5 2 1 0 3 1 5 4 2 0 5 2 5 6 3 0 7 3 5 1 0 5 2 1 0 3 1 5 4 2 0 5 2 5 6 3 0 7 3 5 8 4 0 FZ compartment Code Reference Value 2 ...

Page 64: ...8 62 6 64 4 66 2 68 69 8 71 6 73 4 75 2 77 78 8 80 6 82 4 84 2 86 87 8 89 6 91 4 93 2 95 96 8 98 6 100 4 102 2 3 107 3 057 3 006 2 955 2 904 2 853 2 802 2 751 2 700 2 649 2 599 2 548 2 498 2 449 2 399 2 350 2 301 2 253 2 205 2 158 2 111 2 064 2 019 1 974 1 929 1 885 1 842 1 799 1 757 1 716 1 675 1 636 1 596 1 558 1 520 1 483 1 447 1 412 1 377 1 343 1 309 1 277 1 253 1 213 1 183 16419 15731 15076 1...

Page 65: ... temperature sensor NO Recheck the wire connection part NO 0 6V Measurement 4 6V Check the iced solder solder bridging disturbed solder NO No trouble with PCB and temperature sensor Recheck the bad contact of the connection Measuring point of resistance value according to Sensor ICE MAKER CN90 8 4 measuring resistance value 0Ω Short trouble Ω Open trouble Sensor MICOM Connector number Voltage meas...

Page 66: ... CN76 1 measuring resistance value 0Ω Short trouble Ω Open trouble Sensor MICOM Connector number Voltage measured between 4 6V 0 6V Measuring voltage IC01 MICOM 76 CN30 6 White and REG1 HEAT SINK from PCB typical Ground part are similar CheckthemeasureontheSENSORMARKING 3 R311 duetotheSMDMICOM Checking method of R Sensor resistance CN30 6 White CN76 1 Gray Compare the temperature table after measu...

Page 67: ... 8 CN76 1 measuring resistance value 0Ω Short trouble Ω Open trouble Sensor MICOM Connector Number Voltage measured between 4 6V 0 6V Measuring voltage of IC01 MICOM 74 CN30 8 Sky blue and REG1 HEAT SINK from PCB typical Ground part are similar CheckthemeasureontheSENSORMARKING 5 R313 duetotheSMDMICOM Checking method of R Sensor resistance CN30 8 Sky blue CN76 1 Gray Compare the temperature table ...

Page 68: ...the right top table of upper hinge 0Ω Short trouble Ω Open trouble Sensor MICOM Connector number Voltage measured between 4 6V 0 6V Measuring voltage of IC01 MICOM 72 CN31 1 Yellow and REG1 HEAT SINK from PCB typical Ground part are similar CheckthemeasureontheSENSORMARKING 7 R307 duetotheSMDMICOM Checking method of Ambient Sensor resistance CN31 1 Yellow 4 Yellow Compare the temperature table aft...

Page 69: ...3 CN76 1 measuring resistance value 0Ω Short trouble Ω Open trouble Sensor MICOM Connector number Voltage measured between 4 6V 0 6V Measuring voltage of IC01 MICOM 81 CN30 3 Red and REG1 HEAT SINK from PCB typical Ground part are similar CheckthemeasureontheSENSORMARKING 1 R309 duetotheSMDMICOM Checking method of F Sensor resistance CN30 3 Red CN76 1 Gray Compare the temperature table after measu...

Page 70: ...esistance value 0Ω Short trouble Ω Open trouble Sensor MICOM Connector number Voltage measured between 4 6V 0 6V Measuring voltage of IC01 MICOM 77 CN30 4 Orange and REG1 HEAT SINK from PCB typical Ground part are similar CheckthemeasureontheSENSORMARKING 2 R310 duetotheSMDMICOM Checking method of F DEF Sensor resistance CN30 4 Orange CN76 1 Gray Compare the temperature table after measurement DAT...

Page 71: ...e 0Ω Short trouble Ω Open trouble Sensor MICOM Connector number Voltage measured between 4 6V 0 6V Measuring voltage of IC01 MICOM 71 CN31 3 Orange and REG1 HEAT SINK from typical PCB Ground are similar CheckthemeasureontheSENSORMARKING 8 R308 duetotheSMDMICOM Checking Mehod of Ice Room Sensor voltage CN31 3 Orange CN76 1 Gray Compare with the temperature table after measurement DATA1 Temperaturet...

Page 72: ... resistance value 0Ω Short trouble Ω Open trouble Sensor MICOM Connector number Voltage measured between 4 6V 0 6V Measuring voltage of IC01 MICOM 73 CN30 9 White black and REG1 HEAT SINK from PCB typical Ground part are similar CheckthemeasureontheSENSORMARKING 6 R314 duetotheSMDMICOM Checking method of Pantry Sensor resistance CN30 9 White black CN76 1 Gray Compare the temperature table after me...

Page 73: ... contact of connector insert correctly NO 1 Recheck the wire 2 Replace PCB MAIN NO Normal recheck Measure the resistance between after CN91 connector open 145ohm 7 ERROR Code Checking method of Pantry Room Damper resistance CN91 1 Black 2 Brown Ω Open wire disconnection heater disconnection trouble 0Ω Short trouble Start YES YES YES Initial power On Damper heater off Damper heater On 3 5V 4 8V MIC...

Page 74: ...rt correctly NO 1 Recheck the wire 2 Replace PCB MAIN NO Normal recheck Measure the resistance between after CN79 connector open 72ohm 7 ERROR Code Checking method of Tank Water Heater resistance CN79 6 Pink 10 White Ω Open wire disconnection heater disconnection trouble 0Ω Short trouble Start YES YES YES Initial power On Heater off Working heater 3 5V 4 8V MICOM 6 condition 3 5V 4 8V 0V Is Tank W...

Page 75: ...uringmotoroperating willbeON10 secondsafterfanOff Butifsignalsarenotstillentered theaboveoperation willrestartfourtimesmore Ifsignalsarenotenteredcontinuously themotorwillberestartedafter10 seconds Thisfunctioniseffectivewhenthenormaloperationofmotorwouldbe restrainedbyforeignmatterssuchasice CheckingmethodofR F CFANMotorvoltage ThevoltagebetweenPCBtypicalGroundREG1HeaterSinkand FFAN CN76 3 Yellow...

Page 76: ...function is accomplished After beginning of TEST mode Ice maker heater turns on for initial 2 minutes if the ice making temperature is below 0 If it exceeds 0 Ice maker heater turns on for initial 30 seconds After Ice maker heater turns on for 30 seconds it turns off and then Ice maker motor turns on As the Ice maker motor turns on TEST MODE COUNT operates 6 minutes count Condition Ambient tempera...

Page 77: ...ypical PCB Ground REG1 Heater Sink Displays ERROR Code Start 1 Replace the Ice Maker Kit 2 Check Replace the Main PCB input signal Micom IC01 Pin 37 0V DoesIceMaker rotatewhenpressingtheIceMaker testingswitch over1 5sec No 1 Check the wiring connections 2 Replace Ice Maker Kit 3 Replace MAIN PCB IstheinputvoltageofIC01 MICOM 38 39normal No 1 Replace the Water Valve Refer to the operation condition...

Page 78: ... Short trouble Ω Open bimetal heater trouble 86 30 68 20 50 10 32 0 14 10 4 20 22 30 4 22 6 05 8 87 13 29 20 42 32 23 52 41 If Energy Saver Fridge Power Cool Key are pressed simultaneously for 8 seconds and then select any key 3rd test mode manual defrosting will be operated Is the temperature of defrost sensor lower than 53 6 12 C Is defrost sensor by self diagnostic normal Is power applied to ea...

Page 79: ...etween cabinet and door Check the connections between door and panel PCB 1 Check the contact of lead wire 2 Replace the applicable relay PCB MAIN 1 CheckPCBPATTERNandreplaceBD1 2 ReplacePCBASS Y Istheplugconnectedin Ispower115Vappliedtothe bothterminalsofSMPSPCB CN70 11 9 IsfuseontheSMPS PCBdown IsDC170V appliedtotheboth terminalsofBD1 IsDC5 8V appliedbetweenTOP switch246YCandS Is13Vappliedtothebo...

Page 80: ...Repair the sensor replace PCB No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Does compressor work with manual operation Is CN75 PIN 4 High 2 5V Is the wiring between Main and Sub normal Is the connector between Main and Sub normal No Is the connector CN03 of COMP normal Replace the INVERTER PCB ASS Y No Is the DIODE voltage between Pins for a single SPM part normal Is freezer sensor normal Is t...

Page 81: ... Remove causes after comprehending the conditions of interference by door gasket food etc Replace Door S W Replace Door S W Normal Recheck and Replace Panel PCB Recheck MAIN PCB and door switch Separate the door switch and check if the measured value of unit is changed from 0Ω to Ω according to switch ON OFF FF Door Switch is magnetic switch It can be operated when door magnet is combined with it ...

Page 82: ... associated with panel is occurred except the minor error such as switch pressing error surface peeling off and so on Start Does it sound dingdong if press a button on the front panel Is there any damage or breakage of the buzzer in the panel PCB Didleadofacomponent fallonthevibrationplateof buzzer Doesitmakea soundof dooropen alarmwhen youareopeningthedooroffreezeror fridgemorethan2minutes MAIN P...

Page 83: ...m in the manual or circuit diagram on the back side of the appliance Reinsert connector Repair bad contact ReinsertconnectorofMAINPCB Reinsert connector Repair bad contact Panel PCB itself has trouble Reassemble the PCB ASS Y Enforce the cancelation of pressed keys Reassemble the PCB ASS Y Enforce the cancelation of pressed keys Panel PCB itself has trouble Check the wiring between Dispenser part ...

Page 84: ...tage Replace MAIN PCB Panel PCB itself has trouble Reassemble PCB ASS Y Enforce the cancelation of pressed keys Reassemble PCB ASS Y Enforce the cancelation of pressed keys Convertible compartment Panel PCB itself has trouble Replace MAIN PCB Check the short of MAIN Panel wire Check the wires of Pantry Room disconnection short between wires Recheck the control circuit of MAIN PCB Pantry Panel Chec...

Page 85: ... relay operation Noise of relay operation sounds every Door Open Close F LAMP Relay RY74 R LAMP Relay RY75 Reference If the door is opened the contact of door switch will be opened and MICOM will get applied 5V to finally sense Open If 5V has been sensed over two minutes afterwards Door Open alarm will sound Ding Dong for 10 seconds in a oneminute cycle For that reason if the door switch has failu...

Page 86: ...Voltage Checking Method Common Ground REG1 Heater Sink in PCB and 1 Measuring IC76 voltage DoorSwitchvoltageCheckingMethod MeasuringcommonGroundREG1HeaterSinkinPCB andCN30 2 Purple RDoorSwitch TypicalPCBGroundREG1HeaterSink LED Lamp ON LED Lamp OFF Close Open Door MICOM State MICOM 82 Door Right and Left 0V Low Close Open 5V High No Check the wire Re insert the connector No Yes Yes Yes Yes Yes Yes...

Page 87: ...e PCB Check soldering short Replace PCB Typical PCB Ground REG1 Heater Sink Checking method of voltage Based on PCB typical Ground REG1 Heater Sink 1 Check the voltage of IC73 4 same voltage as IC01 54 ICE Water valve operating about 5V 0 5V BasedonPCBtypicalGroundREG1HeaterSink 2 IC73 15voltage ICEWatervalveWaiting about13V 0 8V ICEWatervalveoperating about0 7V 0 5V 3 Check the voltage of ICE Wat...

Page 88: ...nnector Check the connection hose Check the operation between Panel PCB and MAIN PCB for Communication Normal Check Ice water valve hose Replace Valve Check soldering short Replace PCB Check soldering short Replace PCB Check soldering short Replace PCB 1 Check the dispensing lever 2 Check switch unit wiring connection 3 Replace PCB Typical PCB Ground REG1 Heater Sink Checkingmethodofvoltage Basedo...

Page 89: ...res MAIN PCB failure Replace Is MICOM IC01 103 change into 0V when press Ice switch No Is the Dispenser Cover opened No Replace the MAIN PCB Errors on IC01 Is IC73 1 2 changed into 5V when pressing Ice Switch No RY7A RY7B RELAY Error Replace the MAIN PCB After disconnecting the CN70 CN71and 13P CN73 CN74 measure the both ends of contact points of RY7A RY7B After disconnecting the CN70 CN71 and 13P...

Page 90: ... Motor spring can jumped out and may cause personal injury 3 Motor will rotate continuously when the Motor Switch is not sensed Main PCB Check the wire OPEN SHORT between the Cover Ice Motor Rotation sensing switches Check the Short of Cover Ice Motor Control Circuit SSR75 in the MAIN PCB Replace the MAIN PCB or the Dispenser Cover Motor Is the AC input voltage applied to the both ends of the moto...

Page 91: ...and re check Is the COMP working No MAIN PCB failure Replace No MAIN PCB failure Replace IC75 failure No No Normal Operation Option Stop lighting when R door opens Remove the photosynthetic LED lamp cover and follow to the Reference2 to check any failure Remove the photosynthetic LED lamp cover and follow to the Reference2 to check any failure No Yes Yes Yes Yes Yes Does MAIN PCB IC75 1 have about...

Page 92: ...e fuse on MAIN PCB down Yes No Check PCB PATTERN Replace BD1 Is DC 300V applied between both ends of BD1 No Yes Replace PCB ASS Y Is DC300V applied to HYBRID IC 10 PIN No Yes 1 Replace HYBRID IC IC3 BP5047B15 2 Replace PCB ASS Y Is DC15V applied to HYBRID IC 1 PIN No Yes Replace REG1 KA78L05 Is 5V applied to C104 No Yes Normal Replace PCB ASS Y Is there any PCB soldering short or breakage No Yes A...

Page 93: ...id buzzer of manual operation sound Check certainly after manual operation No Repair the sensor replace PCB No Yes Yes Does compressor work with manual operation No Is CN79 PIN 4 High 2 5V Yes Is freezer sensor normal Yes Is the temperature sensor of MAIN PCB normal Yes Is the wiring between Main and Sub normal Yes Is the connector between Main and Sub normal Yes Is the connector CN03 of COMP norm...

Page 94: ... this 5 minutes RPM command signal is not available It means even if available RPM command signal is applied to the compressor it does not work and keep standing by Blinkingtimeis1secondanddwelltimeis2seconds LED blinking frequency depending on protecting functions Protecting Functions LED Blinking Frequency Remarks Starting Failure SPM Fault Detecting Positon Failure Motor locked Low Voltage Over...

Page 95: ...94 TROUBLESHOOTING SPMInternalDIODEVoltage ...

Page 96: ...source HYBRID IC It supplied DC15V and 5V to MICOM 3 Location sensing resistance area It senses motor location through the current detected 4 Current sensing area It senses the current from the SHUNT resistance and controls PWM DUTY 5 COMP operating SIGNAL area It receives COMP operating signal from MAIN PCB and conduct it 6 BOOTSTRAP live part Charging circuit that 1GBT of SPM can On Off securely...

Page 97: ...96 TROUBLESHOOTING INVERTERPCBCircuitDiagram ...

Page 98: ...inrush of current generated in condenser C1 when plug in and Relay K1 operates 0 1 second after plug in and the power is supplied by relay afterward 2 The Fuse 1 is designed as 5A to prevent over current applied to Compressor and Fuse 2 is designed as 1A to protect SMPS area and power in secondary part ...

Page 99: ...rough COMP OLP and the voltage of 300V DC rectified through DIODE is applied in parallel to the SPM and SMPS area a compressor operating driver 2 The power source is the circuit which reduces 300V DC to each 12V DC and 15V DC by Hybrid IC and supplied to operate the MICOM for controlling COMP and SPM ...

Page 100: ...ROUBLESHOOTING 4 3 3 Location Sensing Resistance Area 1 The circuit makes an AD conversion from MICOM for about 3 3V that divides the Motor Back EMF voltage DC300V by 3 of 300K resistance and 10K resistance ...

Page 101: ...UBLESHOOTING 4 3 4 Sensing Current Area 1 It is the circuit which senses the current from the SHUNT resistance and controls PWM DUTY and the converted value as voltage about 0 5V is applied to the MICOM PIN 18 ...

Page 102: ...101 TROUBLESHOOTING 4 3 5 Comp Operating Signal Area 1 It is the circuit which receives COMP operating signal 200HZ 400HZ from Main PCB and controls the RPM of the Inverter Comp ...

Page 103: ...at 1GBT of SPM can On Off securely This circuit stores the power voltage to operate High Side Power Switch of SPM and is constituted as 3 Capacitors and charges the capacitors by turning the Low Side Power Switch On just before starting the motor for a certain period of time 1000ms ...

Page 104: ...PCB DIAGRAM 5 1 PCB LAYOUT WITH PART POSITION 104 5 2 PCB LAYOUT WITH PART POSITION SMPS BOARD 105 5 3 CONNECTOR LAYOUT WITH PART POSITION MAIN BOARD 106 5 4 CONNECTOR LAYOUT WITH PART POSITION SMPS BOARD 107 ...

Page 105: ... is detected less than the specified voltage 7 PLC input output PLC Power Line communication Option PLC module is not inserted unless specified occasion 8 Operate ICE MAKER supply power to MOTOR and sense the variation of switch 9 Main Micom Panel Micom serial communication circuit Dispenser option input part Water Cover Ice route switch 10 Pantry room display control part display LED detect KEY s...

Page 106: ...Hybrid IC It supplies DC15V and 5V to MICOM 3 Location detecting resistance area It detects motor location through the current detected 4 Current detecting area It detects the current from the SHUNT resistance and controls PWM DUTY 5 COMP operating Signal area It receives COMP operating signal from Main PCB and conduct it 6 BOOTSTRAP live part Charging circuit that 1GBT of SPM can On Off securely ...

Page 107: ...106 5 3 Connector Layout with part position Main Board PCB DIAGRAM 5 3 1 RFG29 AA ...

Page 108: ...107 5 4 Connector Layout with part position SMPS Board PCB DIAGRAM 5 4 1 RFG29 AA ...

Page 109: ...108 7 1 Model RFG295AA BETTER 7 WIRING DIAGRAM BLU BLU ...

Page 110: ...109 6 2 Model RFG297AA BEST 6 WIRING DIAGRAM 13V BLU BLU ...

Page 111: ...110 6 3 Model RFG299AA 7 LCD 6 WIRING DIAGRAM BLU BLU ...

Page 112: ...111 6 4 Model RFG294AA SEARS 6 WIRING DIAGRAM BLU BLU ...

Page 113: ...112 7 1 Whole block diagram 7 SCHEMATIC DIAGRAM 7 1 1 MODEL RFG295AA BETTER ...

Page 114: ...113 7 1 Whole block diagram 7 SCHEMATIC DIAGRAM 7 1 2 MODEL RFG297AA BEST ...

Page 115: ...114 7 1 Whole block diagram 7 SCHEMATIC DIAGRAM 7 1 3 MODEL RFG299AA 7 LCD ...

Page 116: ...115 7 1 Whole block diagram 7 SCHEMATIC DIAGRAM 7 1 4 MODEL RFG294AA SEARS ...

Page 117: ...NSING CIRCUIT HVIC Charge Circuit SPM Normal Mode Control LOCATION DETECTION MODE LOCATION DETECTOR ERROR Mode Control INRUSH CURRENT SENSING CIRCUIT FAULT SENSING CIRCUIT INVERTER COMP OLP MICOM INVERTER PCB INVERTER MODEL OPTION AC Signal DC Power DC Signal MICOM Internal Signal BOOTSTRAP RESET CIRCUIT OSCILLATOR OPTION 7 1 5 MODEL RFG29 AA AW2 ...

Page 118: ...117 7 2 CIRCUIT DIAGRAM SCHEMATIC DIAGRAM 7 2 1 Main ...

Page 119: ...118 7 2 CIRCUIT DIAGRAM SCHEMATIC DIAGRAM 7 2 2 INVERTER ...

Page 120: ...MEMO ...

Page 121: ...2 950 6193 6896 FAX 82 62 950 6829 Samsung Electronics Co Ltd Refrigerator Division 2008 Printed in Korea This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International or domestic law ...