Samsung RFG237AA Service Manual

Bottom mount freezer

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Summary of Contents for Samsung RFG237AA

Page 1 REFRIGERATOR BOTTOM MOUNT FREEZER BASIC : RFG237AA / RFG238AA MODEL NAME : RFG237AARS RFG238AARS RFG237AABP RFG238AABP RFG237AAWP RFG238AAWP RFG237AAPN RFG238AAPN MODEL CODE : RFG237AARS/XAA RFG238AARS/XAA RFG237AABP/XAA RFG238AABP/XAA RFG237AAWP/XAA RFG238AAWP/XAA RFG237AAPN/XAA RFG238AAPN/XAA REFRIGERATOR CONTENTS 1. PRECAUTIONS(SAFETY WARNINGS) · · 4 2. PRODUCT SPECIFICATIONS · · · · · · · · · · 8 3.
Page 2: Important Safety Notice
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.
Page 3 Contents 1. Precautions(Safety Warnings) ·····································4 2. Product Specifications ········································8 2-1) Introduction of main function ···································9 2-2) Specifications ·········································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 ·····································25 3.
Page 4 Contents 4-2-6. If defrost does not operate (F,R DEF Heater) ·························80 4-2-7. If Power is not supplied ··································81 4-2-8. If compressor does not operate·······························82 4-2-9. When alarm sound continuous without stop(related with buzzer sound) ·············84 4-2-10. If Panel PCB does not work normally····························86 4-2-11.
Page 5: Precautions(Safety Warnings)
1. PRECAUTIONS(SAFETY WARNINGS) ● Unplug the appliance before the changing or repairing the electric parts. → Be careful the electric shock. ● When exchanging the parts, use the correct parts. → Check the model name, rating voltage, rating current, running temperature symbols.
Page 6 PRECAUTIONS(SAFETY WARNINGS) Read all instructions before repairing the product and follow the instructions in order to prevent danger or property damage. Plug out and remove all the items in regrigerator prior to repair. CAUTION/WARNING SYMBOLS DISPLAYED SYMBOLS means “Prohibited”. Indicates that a danger of death Warning means “Do not disassemble”.
Page 7 PRECAUTIONS(SAFETY WARNINGS) ❈ Please let users know following warnings & cautions in detail. Warning & Caution Do not allow users to store Do not allow users to store narrow Do not allow users to put bottles or pharmaceutical products, scientific and lengthy bottles or foods in a kinds of glass in the freezer.
Page 8 PRECAUTIONS(SAFETY WARNINGS) FLOORING For proper installation, this refrigerator must be placed on a level surface of hard material that is the same height as the rest of the flooring. This surface should be strong enough to support a fully loaded refrigerator, or approximately 660lbs(299kg).
Page 9: Product Specifications
2. PRODUCT SPECIFICATIONS 2-1) INTRODUCTION OF MAIN FUNCTION ···························9 2-2) SPECIFICATIONS ····································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 ·······························25...
Page 10 2. PRODUCT SPECIFICATIONS 2-1) Introduction of Main Function A newly developed SAMSUNG bottom mount freezer in 2009 has the following ● ● characteristics. Surround Multi Flow Uniform cooling for each shelf and even in corner in fresh ● ● food compartment by centerpositioned fan and duct with multiple flow effluences.
Page 11 2. PRODUCT SPECIFICATIONS Drawer The 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. Dual Ice Maker 7 cubes ice-Maker(Refrigerator) ●...
Page 12 PRODUCT SPECIFICATIONS 2-2) Specifications ELECTRICAL SPECIFICATIONS Refrigerator Defrost Control From 24 to 32 hrs Thermo Bimetal Protector 140°F(60℃)(off) 104°F(40℃)(on) Defrost Thermistor(502AT) 50°F(10℃)(off) Electrical Rating AC115V 60Hz 11.6 Amps Maximum Current Leakage 0.25 mA (Air inlet) (Air inlet) (Air inlet) (Air inlet) (Air inlet) (Air inlet) Maximum Ground Path Resistance...
Page 13 PRODUCT SPECIFICATIONS 2-3) Interior Views Light Refrigerator Auto Door Closer Dairy Compartment Ice-Maker Foldable-Shelf Water Filter Slide-Shelf Tempered glass shelves Vertical Hinged Can carry Section Door Bins Quick-Space Glass Shelf Vegetable & Fruit Drawers Cool Select Pantry PLUS Light FZ Ice-Maker(RFG238) Super Extended Drawer Ice Bucket(RFG238) Tilting Pocket...
Page 14 PRODUCT SPECIFICATIONS 2-4) Model Specification SAMSUNG MAYTAG ITEM SPEC RFG238AA MFI2067AES LFX21980ST Appearance Cooling Tech Twin Cooling Mono Cooling Mono Cooling Product Zone Door Shape Contour Contour Contour Special Room Cool Select Pantry Pantry Pantry F-Room 250↓ Cooling 197.8 R-Room 250↓...
Page 15 PRODUCT SPECIFICATIONS 2-5) Model Specification &Specification Chart RFG238AA (RFG237AA) ITEM Model Ice & Water Dispenser with Pantry 35 3/4 inch (908mm) 24 3/16 inch (614mm) On Cabinet 28 inch (712mm) W/O Handle External Size 30 1/2 inch (774mm) With Handle...
Page 16 PRODUCT SPECIFICATIONS Items Specification Model RFG238AA (RFG237AA) Model BK190C-L2C Compressor Starting type BLDC FREOL α - 15c Oil Charge Freezer SPLIT FIN TYPE Evaporator Refrigerator SPLIT FIN TYPE Condenser Forced and Natural Convection Type Dryer Molecular shieve XH-9 Capillary tube(Dia x Length) R : 0.032”...
Page 17 PRODUCT SPECIFICATIONS Items Specification Model RFG238AA (RFG237AA) AC 115V, 240W Defrost Heater(FRE) Heated at F Defrost Defrost Heater(REF) Heated at R Defrost AC115V, 120W DISPENSER Heater AC115V, 1.6W Interlock with French Heater FRENCH Heater AC115V, 8W ICE Duct Heater AC115V, 7W...
Page 18 PRODUCT SPECIFICATIONS 2-6)Dimensions of Refrigerator (Inches) 35 3/4"(908mm) 30 1/2"(774mm) 28 1/2"(712mm) 3/16"(5mm) 1 3/8"(34mm)
Page 19 PRODUCT SPECIFICATIONS 2-7) Optional Material Specification Part Name Part Code AMOUNT FILTER DA29-00003G WATER-ASSY ASSY-PACKING DA99-00240S LED LAMP FRE DA96-00398C DA96-00398B LED LAMP REF...
Page 20 PRODUCT SPECIFICATIONS 2-8) Refrigerant Route in Refrigeration cycle 1. Compressor → Condenser → Hot Pipe → Back Cluster Pipe → Dryer → Step Valve → R Capillary Tube → Refrigerator Evaporator → Freezer Evaporator → Suction Pipe → Compressor 2. Compressor → Condenser → Hot Pipe → Back Cluster Pipe → Dryer → Step Valve → F Capillary Tube → Freezer Evaporator →...
Page 21 PRODUCT SPECIFICATIONS 2-8-1. PRINCIPLE OF FREEZEER 164.2" 142.2 psi 0 psi 0.016~0.031" 142.2 psi 142.2 psi 0.25" 0.19"...
Page 22 PRODUCT SPECIFICATIONS 2-8-2. Operation theory of refrigeration cycle components ■ Condenser 1) Role: A device which radiates heat to the outside (water/air) to make liquid state for the high temperature / high pressure gas refrigerant discharged from compressor 2) Types A.
Page 23 PRODUCT SPECIFICATIONS 2-8-3. Operation theory of refrigeration cycle components ■ Evaporator 1. Role: As the low pressure liquid refrigerant flowed from capillary absorbs heat inside of the refrigerator, it becomes low pressure gas and refrigerate the foods. 2. Theory: The low pressure refrigerant flowed to evaporator operates cooling which takes ambient evaporated potential heat with maintaining the evaporation up to evaporate completely.
Page 24 PRODUCT SPECIFICATIONS 2-8-4. Operation theory of refrigeration cycle components ※.Influence of moisture ① Moisture precipitation – Blocked by ice ② Refrigerant and reaction ③ Life reduction of oil ④ Acceleration of oxidization ⑤ Copper plating phenomenon ⑥ Gas dissolution by the interaction of synthetic insulating material (insulator) ※.Influence of foreign substance ①...
Page 25 PRODUCT SPECIFICATIONS 2-8-5. Refrigeration Cycle Type TDM Cycle Compressor Condenser Freezer Hot-Pipe Fridge Hot-Pipe Cluster Rear Dryer 3Way Valve Fridge Capillary Tube Fridge Evaporator Connected Pipe Freezer Evaporator Freezer Capillary Tube Suction Pipe Accumulator...
Page 26 PRODUCT SPECIFICATIONS 2-9) Cooling Air Circulation Refrigerator Freezer...
Page 27: Disassembly And Reassembly
3. DISASSEMBLY AND REASSEMBLY 3-1) PRECAUTION ······························27 3-2) REFRIGERATOR DOOR ·························28 3-3) DOOR HANDLE FREEZER ························30 3-4) REFRIGERATOR LIGHT ·························31 3-5) COVER-DISPLAY & WATER-DISPENSER··················31 3-6) WATER-DISPENSER ···························32 3-7) GLASS SHELF ·····························33 3-8) FOLDABLE GLASS SHELF ························33 3-9) VEGETABLE & FRUIT DRAWERS SHELF ·················34 3-10) COOL SELECT PANTRY·························35 3-11) WATER TANK ·····························36 3-12) MOTOR DAMPER····························37...
Page 28 DISASSEMBLY AND REASSEMBLY 3-1) PRECAUTION • Unplug the refrigerator before cleaning and making repairs. • Do not dissemble or repair the refrigerator by yourself. - It may cause risk of causing a fire, malfunction and/or personal injury. • Remove any foreign matter or dust from the power plug pins. - Otherwise there is a risk of fire.
Page 29 DISASSEMBLY AND REASSEMBLY 3-2) Refrigerator Door Part Name How To Do Descriptive Picture 1. With the door opened, remove the Top Table cap(1⃞) with a Flat head screwdriver, and close the 1⃞ door. 2⃞ 2. Remove the 3 screws holding down the Top Table and remove the Top Table(2⃞).
Page 30 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture 5. Lift the door straightly up to remove. Refrigerator Door 6. With a Philips head screwdriver, remove the screw ([10]) attatched to the lower left and right door [12] hinges. With a wrench(0.4＂...
Page 31 DISASSEMBLY AND REASSEMBLY 3-3) Door Handle Freezer Part Name How To Do Descriptive Picture 1. Remove the Cap Door with a flat-blade(-) screwdriver. 2.Remove 4 screws 1⃞ 3. Lift up the handle to have the Door Handle Slider Handle Fre(1⃞) pushed Freezer back.
Page 32 DISASSEMBLY AND REASSEMBLY 3-4) Refrigerator Light Part Name How To Do Descriptive Picture 1. Remove the lamp cover by pulling it down as pushing the rear of lamp cover. Refrigerator Light 2. Remove the screw. And separate the LED panel. 3-5) Cover-Display &...
Page 33 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture 4. Remove 4 screws of cover- Cover-Display display. 3-6) 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.
Page 34 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture hose 1. Assembly shall be in order from the disassembly. Case-Ice and Route shall be assembled inside of hose. Otherwise, assemble cannot be accomplished. Water-Dispenser 2. When assembling Cover- Display, first insert it from leftside and then assemble to rightside.
Page 35 DISASSEMBLY AND REASSEMBLY 3-9) 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. Vegetable & Fruit Drawers Shelf 2. Remove the vegetable & fruit drawer shelf by pulling it out.
Page 36 DISASSEMBLY AND REASSEMBLY 3-10) Cool Select Pantry Part Name How To Do Descriptive Picture 1. Remove the cool select pantry Cool Select Pantry by pulling the roller part and lifting it up. 1. Remove the cool select pantry Cool Select Pantry cover by lifting up the left part of Cover the cover and pulling it.
Page 37 DISASSEMBLY AND REASSEMBLY 3-11) Water Tank Part Name How To Do Descriptive Picture The Water Tank is located in the lower part of the fridge. Before disassembling the Water Tank take out shelves and drawers and pantry located in front of the Water Tank.
Page 38 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture One Water Tube is located in the machine compartment of the refrigerator. Before disassembling the Water Tube, take out the compressor cover. 5. Remove the water valve fixed by the screw. 6.
Page 39 DISASSEMBLY AND REASSEMBLY 3-12) Motor Damper Part Name How To Do Descriptive Picture 1. Remove the cool select pantry. Remove the screw of motor damper part and than push the motor damper down. Motor Damper 2. Disengage 2 housing connectors from the rear motor damper.
Page 40 DISASSEMBLY AND REASSEMBLY 3-14) Water Filter (Reassembly) 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 push it up. Water Filter ⓐ...
Page 41 DISASSEMBLY AND REASSEMBLY 3-16) Vertical Hinged Section Part Name How To Do Descriptive Picture 1. Remove 2 screw caps with a flat-blade(-) screwdriver. (Refer to the picture) 2. Unscrew 2 screws. Vertical Hinged Section 3. Disengage the internal housing connector of the vertical hinge. 4.
Page 42 DISASSEMBLY AND REASSEMBLY 3-17) Evaporator Cover In Refrigerator Part Name How To Do Descriptive Picture 1. Remove the 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 Evaporator Cover pushing it down.
Page 43 DISASSEMBLY AND REASSEMBLY 3-18) Evaporator In Refrigerator Part Name How To Do Descriptive 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 3 housing Evaporator connectors.
Page 44 DISASSEMBLY AND REASSEMBLY 3-19) Super Extended Drawer Part Name How To Do Descriptive Picture 1. Slide the drawer in as much as possible. Super Extended 2. Lift the drawer up. Drawer 3. Remove the drawer by lifting the bottom part of drawer bin and pulling it out.
Page 45 DISASSEMBLY AND REASSEMBLY 3-20) Freezer Door Part Name How To Do Descriptive Picture 1. Take out the upper drawer by lifting it up. 2. Remove the tilting Pocket(①) by ② pulling the both brackets(②) ① upward at the same time. 3.
Page 46 DISASSEMBLY AND REASSEMBLY 3-21) Ice-Maker Part Name How To Do Descriptive Picture lever 1. Pull the lever forward and take out the ice bucket. 2. Remove 1 screw of the Cover. 3. Disassemble the cover with a Ice Maker flat-blade(-) screwdriver and pull it out.
Page 47 DISASSEMBLY AND REASSEMBLY 3-22) Freezer Light Part Name How To Do Descriptive Picture 1. Remove the LED by pulling the LED cover down while pulling Freezer LED the front plane of LED cover. 3-23) Door Switch In Freezer Part Name How To Do Descriptive Picture 1.
Page 48 DISASSEMBLY AND REASSEMBLY 3-24) 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. Evaporator Cover 2. Lift up the evaporator cover. Freezer 3.
Page 49 DISASSEMBLY AND REASSEMBLY 3-26) Machine Compartment Part Name How To Do Descriptive Picture 1. Unscrew 5 screws of cover compressor. 2. Disengage the housing connector. (Refer to the picture) 3. Remove the hooker of support circuit motor by lifting the hooker up and pulling it out.
Page 50 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture 1. Disengage the housing connector. Relay O/L 2.Remove Cover Relay. 3. 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.
Page 51 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture 1. Unscrew 2 screws. 2. Disengage the housing connector. Power Cord & 3. Unscrew 2 earth screws. Noise Filter 4. Remove the cover by pushing the hook up using a flat-blade(-) screwdriver.
Page 52 DISASSEMBLY AND REASSEMBLY 3-27) Electric Box Part Name How To Do Descriptive Picture 1. Pull the refrigerator forward to have enough space to work at the rear side of the appliance. 2. Unscrew 2 screws of the PCB cover. PBA Main 3.
Page 53: Troubleshooting
4. TROUBLESHOOTING 4-1) FUNCTION FOR FAILURE DIAGNOSIS ···························53 4-1-1. TEST MODE (MANUAL OPERATION / MANUAL DEFROST FUNCTION) ···········53 4-1-2. DISPLAY FUNCTION OF COMMUNICATION ERROR ···················54 4-1-3. SELF-DIAGNOSTIC FUNCTION ····························55 4-1-4. DISPLAY FUNCTION OF LOAD CONDITION ·······················58 4-1-5. EXHIBITION MODE SETTING FUNCTION ························59 4-1-6.
Page 54 TROUBLESHOOTING 4-1) Function for failure diagnosis 4-1-1. Test mode (manual operation / manual defrost function) ● If Energy Saver Key + Fridge Key on the front of panel are pressed simultaneously for 8 seconds , it will be changed to the test mode and all displays on the front of panel will be off. ●...
Page 55 TROUBLESHOOTING 2) Simultaneous manual defrost(fresh food and freezer compartments) function 2-1) If any key is pressed one more time during manual operation(fresh food compartment), "Fd" shows in the display and then manual operation will be canceled at once and fresh food and freezer compartment will be defrosted.
Page 56 TROUBLESHOOTING 4-1-3. Self-diagnostic function 1) Self-diagnostic function in the Initial power ON 1-1) Micom operates self-diagnostic function to check the temperature sensor condition within 1 second when the refrigerator turned On initially. 1-2) If bad sensor is detected by the self-diagnostic function, the applicable display LED will blink for 0.5 sec.
Page 57 TROUBLESHOOTING Self-diagnosis CHECK LIST Trouble item Display LED Trouble contents Ice Maker Sensor Error(R) R-1-ⓐ Senser system in ICE MAKER(R) errors R-Sensor Error R-1-ⓑ Sensor system in FF compartment errors R-DEF-Sensor Error R-1-ⓒ Defrost Sensor system in FF compartment errors R-FAN Error R-1-ⓓ...
Page 58 TROUBLESHOOTING Self-diagnostics check list Item Trouble contents Diagnostic method The voltage of MAIN PCB CN30 #7↔CN76 R-1-ⓐ Ice Maker(R) Sensor Error #1:shall be between 4.5V~1.0V Display error : separation of sensor housing The voltage of MAIN PCB CN90 #8 ↔#4: part, contact error, disconnection, short R-10-ⓓ...
Page 59 TROUBLESHOOTING 4-1-4. Display function of Load condition ① ① ② ① If Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds, ALL ON/OFF will blink with 0.5interval for 2 seconds. ② If take the finger off from above keys and press Fridge, load condition mode will be started. 1) If Power Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds during normal operation, the temperature setting display of fresh food and freezer compartments will blink ALL ON/OFF with 0.5 for 2 seconds.
Page 60 TROUBLESHOOTING Load mode Check list Display LED Display contents Operation contents R-1-ⓐ R-FAN High When FF compartment FAN operates with high speed, applicable LED ON R-1-ⓑ R-FAN Low When FF compartment FAN operates with low speed, applicable LED ON R-1-ⓒ R-DEF Heater When FF compartment defrost heater operates, LED ON R-1-ⓓ...
Page 61 TROUBLESHOOTING 4-1-6. Option setting function ● If Freezer Key+ lighting Key are pressed simultaneously for 12 seconds during normal operation, fresh food and freezer compartments temperature display will be changed to option setting mode. KEY operation method for changing to option mode ①...
Page 62 TROUBLESHOOTING Code Reference Value 1) For example, if you want to change freezer compartment standard temperature to -4℉(-2°C) by operating option, do as below. This function is for changing the standard temperature. In -2℉(-19°C) of current temperature of freezer compartment, if you make the temperature lower to -4℉ (-2°C) by the option, the standard temperature would be controlled -6℉(-21°C) Therefore, if you change the setting of temperature option to -2℉(-19°C) on the panel, the appliance will be operated with -6℉(-21°C).
Page 63 TROUBLESHOOTING 4-1-7. Option TABLE 1) Temperature changing table of freezer compartment Set item Freezer Temp Shift MODEL RFG23***** Fridge Room 7-SEG Reference Value Setting value Temp. compensation compartment Code 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℃) Code Reference Value +2℉(+1.0℃) ex) If you want to change the freezer standard temperature to +3℉(+1.5℃)
Page 64 TROUBLESHOOTING 3) Temperature changing table of ICE ROOM compartment . Set item ICE ROOM Temp shift MODEL RFG23***** Fridge Room 7-SEG Reference Value Setting value Temp. compensation compartment Code ex) If you want to change the 8.6℉(-13℃) freezer compartment 6.8℉(-14℃) standard temperature to 5℉(-15℃) 10.4℉(-12℃).
Page 65 TROUBLESHOOTING 4-2) Diagnostic method according to the trouble symptom(Flow Chart) DATA1.Temperature table Resistance value and MICOM port voltage of sensor according to the temperature. SENSOR CHIP : PX41C, 502AT// 103**(ICE MAKER SENSOR(MOLD))//FULL UP ,20K ohm used. (The survey of resistance is nearly twice than below data.) ℃...
Page 66 TROUBLESHOOTING 4-2-1. If the trouble is detected by self-diagnosis - The error of sensor will be displayed on the front of display. When the error of sensor is detected at initial power ON, the appliance will operated by the emergency mode and display of abnormal sensor part will blink. - The appliance will not stop operating when the error of sensor is detected during operation of the appliance.
Page 67 TROUBLESHOOTING 2) If ICE Maker(F) Sensor has troubled(RFG238 MODEL) ERROR Code ※ This refrigerator has Dual Ice Maker, so controlled two Ice Makers. Start Is MAIN PCB DATA1. Connector CN90 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** ICE MAKER(F) : CN90 #3 or #8 ↔...
Page 68 TROUBLESHOOTING 3) If R Sensor has trouble ERROR Code Start Is MAIN PCB DATA1. Connector CN30 and CN76 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** Is R Sensor R : CN30#6 ↔...
Page 69 TROUBLESHOOTING 4) If R DEF Sensor has trouble ERROR Code Start Start Is MAIN PCB DATA1. Connector CN30 and CN76 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** R-DEF : CN30#8 ↔...
Page 70 TROUBLESHOOTING 5) If Ambient Sensor has trouble ERROR Code Start Start Is MAIN PCB DATA1. Connector CN31 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** Ambient : CN31#1 ↔ #4 measuring resistance value Is Ambient Sensor ** Placed in the right top table of upper hinge.
Page 71 TROUBLESHOOTING 6) If F Sensor has trouble ERROR Code Start Start Are MAIN PCB DATA1. Connector CN30 and CN76 Temperature table inserted correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** Is F Sensor F : CN30#3 ↔...
Page 72 TROUBLESHOOTING 7) If F DEF Sensor has trouble ERROR Code Start Start Are MAIN PCB DATA1. Connector CN30 and Temperature table CN76 insert correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** F-DEF : CN30#4 ↔...
Page 73 TROUBLESHOOTING 8) If Ice Room Sensor has trouble ERROR Code Start Start Is MAIN PCB DATA1. Connector CN31 and CN76 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** Ambient : CN32#3 ↔...
Page 74 TROUBLESHOOTING 9) If Pantry Sensor has trouble ERROR Code Start Start Is MAIN PCB DATA1. Connector CN30 and CN76 insert Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** Is Pantry Sensor Pantry : CN30#9 ↔...
Page 75 TROUBLESHOOTING 10) If Pantry Room Damper Heater has trouble ERROR Code Start Start Measure the resistance Is Damper Heater between ①-② after normal?(about145ohm) CN91 connector open 145ohm ± 7% Replace Damper Is MAIN PCB connector (CN91) inserted correctly? Bad contact of connector/ insert correctly Initial Damper Damper...
Page 76 TROUBLESHOOTING 11) If Tank Water Heater has trouble ERROR Code Start Start Is MAIN PCB connector (CN79) inserted correctly? Bad contact of connector/ insert correctly Measure the resistance Is Tank Water Heater between ⑥(3)-⑩(7) after normal?(about72ohm) CN79 connector open 72ohm ± 7% 1) Wire connector Initial Working...
Page 77 TROUBLESHOOTING 4-2-2. IF FAN does not operate(F, R, C - FAN) - The refrigerator of this model has BLDC FAN motor. BLDC motor is driven by DC 7~12V. - On the normal condition of COMP ON, it operates together with F-FAN motor. If door is opened and closed once at a high ambient temperature, it will be operated after 1 minute delay.
Page 78: If Ice Room Fan Does Not Operate
TROUBLESHOOTING 4-2-3. If ICE Room Fan does not operate - This refrigerator has BLDC FAN motor. BLDC motor is driven by DC7~12V. - When COMP ON, normally operates with F-FAN motor. - If there is any trouble, you should select the self-diagnostic function to check the trouble before power off. Start - When pressing the ICE TEST S/W for a certain period of time (over 1.5sec), the function is accomplished.
Page 79: If Ice Maker Does Not Operate
TROUBLESHOOTING 4-2-4. If Ice Maker does not operate 1. Water is automatically supplied to the Ice Maker depending on temperature & time condition and Ice Maker Dispenses cubed or crushed ice. 2. Power is applied to the one end of wires. Be careful when disassembling and shall refer to its exploded diagram in any case.
Page 80 TROUBLESHOOTING 4-2-5. If ICE MAKER(F) does not operate(RFG238 MODEL) 1. Water is automatically supplied to the Ice Maker depending on temperature & time condition and Ice Maker Dispenses cubed or crushed ice. 2. Power is applied to the one end of wires. Be careful when disassembling and shall refer to its exploded diagram in any case.
Page 81 TROUBLESHOOTING 4-2-6. If defrost does not operate (F,R DEF Heater) - If defrost has trouble, select the self-diagnostic function to detect the error of defrost heater before Power Off. (Check the function with the self-diagnostic function) R DEF ERROR F DEF ERROR **Measuring point of resistance value according to heater** F-DEF(Ice Duct parallel) : CN70#7(Brown) ↔...
Page 82: If Power Is Not Supplied
TROUBLESHOOTING 4-2-7. If Power is not supplied Caution - Refer to the function and At the power of main PCB, the reference parts in the manual AC115V power and a high-voltage when check the MAIN PCB Start over DC 170V are occurred.Please take care of yourself during repair and measurement.
Page 83: If Compressor Does Not Operate
TROUBLESHOOTING 4-2-8. If compressor does not operate Start Did 7 minutes pass after Compressor OFF? Check after 7 minutes Refer to test function Does compressor work in the manual with manual operation? Did buzzer of manual operation sound? (Check certainly after manual operation) Is freezer sensor normal? 0~800Hz 50% Duty Is CN75 PIN #4...
Page 84 TROUBLESHOOTING SPM FREEWHEELING DIODE VOLTAGE VALUE...
Page 85 TROUBLESHOOTING 4-2-9. When alarm sounds continuously without stop(related with buzzer sound) ① If 'ding-dong'sound continuously Start Door is ajar Is door closed completely? Remove causes after comprehending the conditions of interferance by door gasket, food etc, Is water penetrated into the door switch? Replace Door S/W Seperate the door switch andcheck if the measured value of unit is...
Page 86 TROUBLESHOOTING ③ If buzzer does not sound Buzzer is installed on the panel PCB in this model. If buzzer does not sound even though the button is pressed, manual operation is started and door is opened, it should separate panel PCB and check the breakage of buzzer and bad soldering. It is very hard to repair the panel PCB because it consists of SMD assemblies.
Page 87: If Panel Pcb Does Not Work Normally
TROUBLESHOOTING 4-2-10. If Panel PCB does not work normally ① When lighting of Panel PCB is disabled or only some LED Lamp are disabled Be careful to repair because display of this model is installed in the MICOM of internal PCB. It is recommended to replace PCB MAIN after checking except specified solder touch.
Page 88: If Pantry Panel Pcb Is Not Working Normally
TROUBLESHOOTING 4-2-11. If Pantry Panel PCB is not working normally You should check the display after door opening because the display of this model operates only when the fresh food compartment door is opened. Start Does fresh food compartment door switch operate normally? Check and repair the switch * Refer to<how to repair door switch>...
Page 89: When Refrigerator Room Lamp Does Not Light Up
TROUBLESHOOTING 4-2-12. When refrigerator ROOM Lamp does not light up 1. When you replace the lamp of freezer, please power OFF to avoid an electric shock. 2. Please keep in mind you could get burnt by the excessive heating of an incandescent light bulb. 3.
Page 90 TROUBLESHOOTING 1) LED Lamp (Option) When controlling the regrigerator light with Regulator(12V) : LED LAMP → Applying only to the FF compartment. * If the Vegetable Lamp does not work properly, check the FF compartment LED Lamp because it is connected with the FF compartment LED Lamp in parallel.
Page 91 TROUBLESHOOTING 4-2-13. If ICE Water is not supplied 1. Please shut the water supplying prior to repair. 2. Power is applied to the one end of wires. Be careful when disassembling not to get an electric shock. 1) Fridge Ice Water Valve Typical PCB Ground REG1 Heater Sink Start Is the confirming sound of...
Page 92 TROUBLESHOOTING 2) Freeze Ice Water valve(RFG238 MODEL) Typical PCB Ground REG1 Heater Sink Start Is the confirming sound of Normal(Check Ice the valve operation heard when water valve hose) Ice maker(F) test switch pushed? ☞ Checking method of voltage Based on PCB typical Ground REG1 Heater Sink 1) Check the voltage of IC72#1(same voltage as IC01#58)
Page 93: If Cubed Or Crushed Ice Is Not Supplied
TROUBLESHOOTING 4-2-14. If Cubed or Crushed Ice is not supplied Freezer door shall be Start closed during operation. Are Ices ejected? Are Ices in the Ice bucket? Is “Ice Off” mode selected on the display ① Check the Ice making switch panel? ②...
Page 94 TROUBLESHOOTING 4-2-15. If Cover Ice Route Motor(Geard Motor) is not working normally Caution 1. When replacing the Cover Ice Motor, pull out the plug to avoid an electric shock. 2. Be careful! When disassemble the Cover Ice Motor, spring can jumped out and may cause personal injury. 3.
Page 95 TROUBLESHOOTING 4-2-16. If Inverter PCB Power is not supplied Caution At the INVERTER PCB Power, AC 110V/220V power and over DC 300V - See the operations and of high-voltage are applied. Please take Start reference in this manual care of yourself when repair and when check the MAIN PCB.
Page 96 TROUBLESHOOTING 4-2-17. LED blinking frequency depending on protecting functions If Failure Condition is detected during compressor is operating, immediately stop Compressor operating and stand by 5 minutes. During 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.
Page 97 TROUBLESHOOTING INVERTER PCB Circuit Diagram...
Page 98: Exploded View & Parts List
5 . EXPLODED VIEW& PARTS LIST 5-1) FREEZER ·······································98 5-2) REFRIGERATOR ····································102 5-3) CABINET ·······································108 5-4) DISASSEMBLY OF FREEZER DOOR ···························112 5-5) DISASSEMBLY OF REFRIGERATOR DOOR LEFT ····················114 5-6) DISASSEMBLY OF REFRIGERATOR DOOR RIGHT····················116...
Page 99 EXPLODED VIEW& PARTS LIST 5-1) Freezer 5-13 5-12 5-10 5-11 1-11 18-2 18-1 1-10 12-5 12-2 12-1 12-4 12-3 17-13 17-21 17-6 17-8 17-18 17-16 17-3 17-22 17-7 17-10 17-17 17-20 17-23 17-18 17-4 16-4 17-20 17-14 17-1 17-14 17-2 17-9 17-11 17-12...
Page 100 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Freezer Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 101 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Freezer Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 102 MEMO...
Page 103 EXPLODED VIEW& PARTS LIST 5-2) Refrigerator 27-1 27-3 27-4 27-2 28-2 3-17 3-15 28-6 28-4 3-16 28-3 3-19 3-11 3-10 3-21 28-5 28-1 3-12 3-13 3-18 10-3 11-1 3-20 10-2 11-2 10-5 3-14 32-2 10-1 10-6 10-7 32-1 32-10 32-7 10-8 32-8 12-2...
Page 104 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Refrigerator Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 105 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Refrigerator Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 106 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Refrigerator Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 107 ■ ■ Parts List of Refrigerator Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 108 MEMO...
Page 109 EXPLODED VIEW& PARTS LIST 5-3) Cabinet RFG238AA* RFG237AA*/XAA 27-4 27-2 27-1 24-1 24-2 27-3 13-6 13-5 13-4 13-5-7 13-5-1 13-5-3 13-5-5 13-5-4 13-1 14-1 14-2 13-5-6 13-3 13-5-2 13-2 12-4 12-1 12-2 12-3...
Page 110 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Cabinet Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 111 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Cabinet Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 112 POM,CAP FITTING ADD DA61-03467A FIXER-HOSE AW-PJT,NY-66,-,BLACK,- DA41-00404F PBA SUB-PBA INVERTER AW2-PJT,TOP,FR-4,1.6T*148*98.5,-,110~120,50 or 60 Hz DA97-07827B ASSY VALVE WATER AW2 TIM,TWIN I/M, 110-127V RFG237AA*/XAA DA97-07695A ASSY VALVE WATER AW2 TIM,TWIN I/M, 110-1 RFG238AA* DA97-05362C ASSY PIPE-WATER AW-PJT(BEST),CD,TIM DA61-04977A FOOT-FRONT AW2-PJT,PP+MSWR10,-,BLACK,-,- DA41-00617B...
Page 113 EXPLODED VIEW& PARTS LIST 5-4) Disassembly of Freezer Door...
Page 114 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Freezer Door Q Q U U A A N N S S P P E E C C N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E R R E E M M A A R R K K T T I I T T Y Y...
Page 115 EXPLODED VIEW& PARTS LIST 5-5) Disassembly of Refrigerator Door Left 11-1 10-1 10-2 11-2 12-1 12-2 8-10 8-11 8-12...
Page 116 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Refrigerator Door-Left Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 117 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Refrigerator Door-Left Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 118 EXPLODED VIEW& PARTS LIST 5-6) Disassembly of Refrigerator Door Right...
Page 119 EXPLODED VIEW& PARTS LIST ■ ■ Parts List of Refrigerator Door-Right Q Q U U A A N N N N O O C C O O D D E E - - N N O O P P A A R R T T N N A A M M E E S S P P E E C C R R E E M M A A R R K K T T I I T T Y Y...
Page 120 6. PCB DIAGRAM 6-1) PCB LAYOUT WITH PART POSITION ··························121 6-2) PCB LAYOUT WITH PART POSITION (SMPS BOARD) ···················122 6-3) CONNECTOR LAYOUT WITH PART POSITION (MAIN BOARD)···············123 6-4) CONNECTOR LAYOUT WITH PART POSITION (SMPS BOARD)···············125...
Page 121: Pcb Diagram
PCB DIAGRAM 6-1) PCB Layout with part position 1. DC13V, 5V, GND supplied from SMPS PCB 2. Circuit for controlling Step-Valve (3-Way Valve) * Option 3. FAN MOTOR control part : To supply the power from 8.3V ~ 12V according to the motor types. (F,R,C,ICE) 4.
Page 122 PCB DIAGRAM 6-2) PCB Layout with part position (SMPS Board) 1. Inrush current protecting area : It prevents an instant inrush of current generated in condenser when plug in. 2. PCB Power Bus : power bus (Hybrid IC). It supplies DC15V and 5V to MICOM. 3.
Page 123 PCB DIAGRAM 6-3) Connector Layout with part position (Main Board) 6-3-1. RFG237*AA**...
Page 124 PCB DIAGRAM 6-3) Connector Layout with part position (Main Board) 6-3-2. RFG238,9*AA**...
Page 125 PCB DIAGRAM 6-4) Connector Layout with part position (SMPS Board) 6-4-1. RFG23**AA**...
Page 126: Wiring Diagram
7. WIRING DIAGRAM 7-1) Model : RFG23**...
Page 127 8. SCHEMATIC DIAGRAM 8-1) Whole block diagram 8-1-1. MODEL : RFG237**...
Page 128: Schematic Diagram
8. SCHEMATIC DIAGRAM 8-1) Whole block diagram 8-1-2. MODEL : RFG238**...
Page 129 8. SCHEMATIC DIAGRAM 8-1) Whole block diagram 8-1-3. MODEL : RFG23***...
Page 130 SCHEMATIC DIAGRAM 8-2) CIRCUIT DIAGRAM 8-2-1. Main...
Page 131 SCHEMATIC DIAGRAM 8-2) CIRCUIT DIAGRAM 8-2-2. INVERTER...
Page 132 Gwangju-City, Korea, 506-253 TEL : 82-62-950-6193, 6896 FAX : 82-62-950-6829 - 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. © Samsung Electronics Co., Ltd.

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