Samsung RF28R7201 AA Series Service Manual
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Samsung RF28R7201 AA Series Service Manual

French door refrigerator
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REFRIGERATOR
REFRIGERATOR
FRENCH DOOR REFRIGERATOR
MODEL NAME : RF28R
MODLE CODE : RF28R7201**/AA
CONTENTS
1. PRECAUTIONS(SAFETY WARNINGS) ············· 5
2. PRODUCT SPECIFICATIONS ···························· 9
3. DISASSEMBLY AND REASSEMBLY ··············· 18
4. TROUBLESHOOTING ·····································51
5. PCB DIAGRAM ···············································97
6. WIRING DIAGRAM ······································ 100
7. BLOCK DIAGRAM··········································101
8. MODEL CODE TABLE ·································· 102
RF28R7201**/SA

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Summary of Contents for Samsung RF28R7201 AA Series

  • Page 1 REFRIGERATOR FRENCH DOOR REFRIGERATOR MODEL NAME : RF28R MODLE CODE : RF28R7201**/AA RF28R7201**/SA REFRIGERATOR CONTENTS 1. PRECAUTIONS(SAFETY WARNINGS) ············· 5 2. PRODUCT SPECIFICATIONS ···························· 9 3. DISASSEMBLY AND REASSEMBLY ··············· 18 4. TROUBLESHOOTING ·····································51 5. PCB DIAGRAM ···············································97 6. WIRING DIAGRAM ······································ 100 7.
  • Page 2 Any attempt to repair a major appliance 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 ©2010 All rights reserved.

  • Page 3: Table Of Contents

    Contents 1. Precautions(Safety Warnings) ......................5 2. Product Specifications .......................... 9 2-1) Introduction of Main Function ............................. 9 2-2) Specifications..................................11 2-3) Interior Views ..................................12 2-4) Model Specification &Specification Chart ........................13 2-5) Dimensions of Refrigerator (Inches) ..........................16 2-6) Optional Material Specification ............................17 3.
  • Page 4 Contents 4-2-2. If FAN does not operate ............................82 4-2-3. If ICE Room Fan does not operate ......................... 83 4-2-4. When ICE MAKER(FF) does not operate ......................84 4-2-5. If defrost does not operate (F,R DEF Heater)....................... 85 4-2-6. When Power is not applied ............................ 86 4-2-7.

  • 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 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 put bottles or Do not allow users to store narrow and Do not allow users to store kinds of glass in the freezer. lengthy bottles or foods in a small multi- pharmaceutical products, scientific purpose room.
  • 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 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. Twin Cooling System • The refrigerator and the freezer have two evaporators. Given this independent system, the freezer and the refrigerator are cooled individually as required and are, therefore, more efficient.
  • Page 10 PRODUCT SPECIFICATIONS ▶ Changing Items Item Details New Model Slim Water Slim water filter is placed between crispers for Filtration System changing filter conveniently without removing items from Refrigerator. Internal Display The display change more wider and apply Blue LED lighting.

  • Page 11: 2-2) Specifications

    PRODUCT SPECIFICATIONS 2-2) Specifications ELECTRICAL SPECIFICATIONS REFRIGERATOR Defrost Control From 12 to 22 hrs(comp. run time) Thermo Bimetal Protector 140℉(60℃)(off) 104℉(40℃)(on) Defrost Thermistor F: 50℉(10℃)(off) (502AT) R: 59℉(15℃)(off) Electrical Rating AC115V 60Hz AC115V 60Hz / 230V50Hz Maximum Current Leakage 0.25 mA Maximum Ground Path 0.1 Ohm Resistance...

  • Page 12: 2-3) Interior Views

    PRODUCT SPECIFICATIONS 2-3) Interior Views * applicable models only...

  • Page 13: 2-4) Model Specification &Specification Chart

    PRODUCT SPECIFICATIONS 2-4) Model Specification &Specification Chart RF28R* ITEM Model Ice & Water Dispenser 35 6/8 Inch (908mm) On Cabinet 29 1/2 Inch (751mm) W/O Handle 34 Inch (864mm) External size With Handle 36 1/2 Inch (926mm) W/O Hinge Cap 68 7/8 Inch (1749mm) With Hinge Cap 70 Inch (1777mm)
  • Page 14 PRODUCT SPECIFICATIONS Specification Items RF28R* Model NF54M7151AN/E01 Compressor Starting type BLDC Condenser Forced and Natural Convection Type Refrigerant R600a Model Temperature Selection ON(℉) -8℉(-22℃) -5℉(-20℃) THERMISTOR -2℉(-19℃) 1℉(-17℃) (F-SENSOR) 502AT 8℉(-14℃) 11℉(-12℃) Model Temperature Selection ON(℉) 29℉(-1℃) 32℉(0℃) THERMISTOR (F-SENSOR) 502AT 42℉(5℃) 45℉(7℃) Model...
  • Page 15 PRODUCT SPECIFICATIONS Specification Items RF28R* Defrost Heater(FRE) Heated at F Defrost AC 120V, 230W / AC 230V, 230W Defrost Heater(REF) Heated at R Defrost AC 120, 120W / AC 230V, 120W F/S : AC 120V, 141W / AC 230V, 141W Heater-Ice Maker C/D : AC 120V, 120W / AC 230V, 120W Interlock with...

  • Page 16: 2-5) Dimensions Of Refrigerator (Inches)

    PRODUCT SPECIFICATIONS 2-5) Dimensions of Refrigerator (Inches) Model : RF28R* 35 6/8" (908mm) 4" (102mm) 36 1/2" (926mm) 1 1/4" (30.6mm) 34" (864mm) 1/2" (13mm) 2" (51mm)

  • Page 17: 2-6) Optional Material Specification

    PRODUCT SPECIFICATIONS 2-6) Optional Material Specification IMAGE Part Name Part Code AMOUNT ASSY-PACKING SUB DA99-03490L ASSY CASE LAMP-REF DA97-12606C LED LAMP FRE DA41-00676J LED LAMP MID DA41-00676J...

  • Page 18: Disassembly And Reassembly

    3. DISASSEMBLY AND REASSEMBLY 3-1) PRECAUTION • Unplug the refrigerator before cleaning and making repairs. • Remove any foreign matter or dust from the power plug pins. - Otherwise there is a risk of fire. • Do not use a cord that shows cracks or abrasion damage along its length or at either end. •...

  • Page 19: 3-2) Refrigerator Door

    DISASSEMBLY AND REASSEMBLY 3-2) Refrigerator Door Part Name How To Do Descriptive Picture Remove the 3 screws holding down the Top Table and remove the Top Table (①) ① ② Disconnect the electrical (②) above the upper left door hinge To disconnect the connector (②) more easily, press the end of the hook (③) and pull connector.
  • Page 20 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture Lift the door straightly up to remove. Be careful not to drop the door. CAUTION Refrigerator Door Lift the grommet hinge straightly up to remove. ⑧ With a Philips head screwdriver, remove the screw (⑥) attatched to the lower left and right door hinges.

  • Page 21: 3-3) Door Handle Refrigerator

    DISASSEMBLY AND REASSEMBLY 3-3) Door Handle Refrigerator Part Name How To Do Descriptive Picture Loose Set Screw with 0.1in Hex wrench and pull front the handle. Door Handle Fridge Remove the cover vinyl of door.

  • Page 22: 3-4) Door Handle Freezer & Flex Zone

    DISASSEMBLY AND REASSEMBLY 3-4) Door Handle Freezer & Flex zone Part Name How To Do Descriptive Picture Loosen the Set Screw situated at the bottom right of the appliance about 0.1in by using Hex wrench. Door Handle Freezer Pull the Set handle out by moving it to the right side.

  • Page 23: 3-5) Lever And Water-Dispenser

    DISASSEMBLY AND REASSEMBLY 3-5) Lever and Water-Dispenser Part Name How To Do Descriptive Picture Put both fingers in the upper of lever. Pull and remover the lever slowly. Remove two screws under the Dispenser Display. Lever and Water-Dispenser (Disassembly) Grasp the top of the dispenser display and pull it down.
  • Page 24 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture Put both fingers in the upper of lever. Pull and remover the lever slowly. Pull to the front direction cam to separate the ASSY CASE ICE ROUTE from dispenser. Lever and Water-Dispenser (Disassembly) Put gloves and separate the ASSY CASE ICE ROUTE with pulling according to the arrow...

  • Page 25: 3-6) Glass Shelf

    DISASSEMBLY AND REASSEMBLY 3-6) Glass Shelf Part Name How To Do Descriptive Picture Remove the shelf by lifting the front part of the Glass Shelf shelf up and pulling it out. 3-7) Foldable Glass Shelf Part Name How To Do Descriptive Picture Remove the Cap.

  • Page 26: 3-8) Vegetable & Fruit Drawers Shelf

    DISASSEMBLY AND REASSEMBLY 3-8) Vegetable & Fruit Drawers Shelf Part Name How To Do Descriptive Picture Remove the vegetable & fruit drawer by pulling the roller part and lifting it up. button While pressing the button on the left of the shelf in txhe picture, lift up the Vegetable &...

  • Page 27: 3-9) Case Water Filter

    DISASSEMBLY AND REASSEMBLY 3-9) Case Water Filter Part Name How To Do Descriptive Picture To disassemble the Case Water Filter, remove the water filter and all drawers and shelves. Remove the 3 screws holding down the Top Table and remove the Top Table (①). ①...
  • Page 28 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture Disconnect the 2 Housing connectors (⑤). ⑤ Case Water Filter Remove a screw the case fitler right side. Lift and pull the Case Water Filter out.

  • Page 29: 3-10) Motor Damper

    DISASSEMBLY AND REASSEMBLY 3-10) Motor Damper Part Name How To Do Descriptive Picture Remove the 2 screws under the. water filter case and take off the cover damper(②). Motor Damper Disengage 2 housing connector. Take off the Motor Damper by pulling a flat- blade screwdriver .

  • Page 30: 3-11) Water Filter (Assembly & Disassembly)

    DISASSEMBLY AND REASSEMBLY 3-11) Water Filter (Assembly & Disassembly) Part Name How To Do Descriptive Picture Turn the water filter count-clockwise. (Refer to the picture) Remove the water filter by pulling it. (Refer to the picture) Water Filter Push the water filter directly. locked.

  • Page 31: 3-12) Vertical Hinged Section

    DISASSEMBLY AND REASSEMBLY 3-12) Vertical Hinged Section Part Name How To Do Descriptive Picture Remove 2 screw cap parts with a flat-blade(-) screwdriver. (Refer to the picture) Be careful not to scratch or break the parts CAUTION Vertical Hinged Section Unscrew 2 screws.
  • Page 32 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture Disengage the internal housing connector of the vertical hinge. Vertical Hinged Section Remove the vertical hinged section by lifting the vertical hinge up. (Refer to the picture)

  • Page 33: 3-13) Evaporator Cover In Refrigerator

    DISASSEMBLY AND REASSEMBLY 3-13) Evaporator Cover In Refrigerator Part Name How To Do Descriptive Picture Remove the angle cap with a flat-blade screwdriver. (Refer to the picture) Be careful not to scratch or break the parts CAUTION Unscrew 4 screws. ②...

  • Page 34: 3-14) Evaporator In Refrigerator

    DISASSEMBLY AND REASSEMBLY 3-14) Evaporator In Refrigerator Part Name How To Do Descriptive Picture Remove the the housing cover by pushing both lateral sides of the housing cover (①) and pulling it out. (Refer to the picture) Disconnect the housing connector part on left side.

  • Page 35: 3-15) Freezer Door

    DISASSEMBLY AND REASSEMBLY 3-15) Freezer Door Part Name How To Do Descriptive Picture Pull out the Pull Out Drawer by maximum. After lifting the Pull Out Drawer up holding both sides, remove it at the rail system. After lifting the Freezer Guard up holding both sides, remove it at the rail system.

  • Page 36: 3-16) Convertible Door

    DISASSEMBLY AND REASSEMBLY 3-16) Convertible Door Part Name How To Do Descriptive Picture Pull the and remove the convertible room (②) by pulling it to your body with both hands. open to full extension. Remove the cover housing (②) by a flat-blade screwdriver.

  • Page 37: 3-17) Flex Zone Door

    DISASSEMBLY AND REASSEMBLY 3-17) Flex Zone Door Part Name How To Do Descriptive Picture Remove the shaft gear(②) by pull the pin(②) out. ① ② Mid drawer ③ Remove the screw and pull out The rail.

  • Page 38: 3-18) Ice-Maker

    DISASSEMBLY AND REASSEMBLY 3-18) Ice-Maker Part Name How To Do Descriptive Picture When pressing the Fridge + Flex zone keys for 8 seconds at the same time, it will proceed to TEST MODE. When you proceed to TEST MODE, press the Flex zone key in Panel to operate TEST KEY.
  • Page 39 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture Disconnect the Ice Maker Housing Connector. Remove the screw from the Duct Tray-ice. Ice Maker With a flat blade screwdriver, push the duct to the right and remove it from the locking tab. (Refer to the image.) With a flat blade screwdriver, pry down on the refrigerant tube to separate it from the...
  • Page 40 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture 10. Push down the refrigerant pipe slightly and separate the refrigerant pipe and the Ice Maker Assembly completely. 11. While pressing the Hook, pull out the Ice Maker. Ice Maker 12.

  • Page 41: 3-19) Flex Zone Light

    DISASSEMBLY AND REASSEMBLY 3-19) Flex Zone Light Part Name How To Do Descriptive Picture Remove the cover Flex zone lamp (①) by a flat-blade screwdriver. Flex Zone Light Disengage the housing. 3-20) Freezer Light Part Name How To Do Descriptive Picture Remove the cover Freezer lamp like the way disassembling the Flex zone lamp.

  • Page 42: 3-21) Door Switch In Freezer

    DISASSEMBLY AND REASSEMBLY 3-21) Door Switch In Freezer Part Name How To Do Descriptive Picture Remove the cover Freezer lamp like the way disassembling the Flex zone lamp. Door Switch In Freezer Disengage the housing.

  • Page 43: 3-22) Evaporator Cover In Freezer

    DISASSEMBLY AND REASSEMBLY 3-22) Evaporator Cover In Freezer Part Name How To Do Descriptive Picture Remove the freezer door and freezer drawer by pulling out the drawer and then unscrewing 2 screws. Lift up the evaporator cover. Evaporator Cover In Freezer Disengage the 3 housing connectors and remove the evaporator cover.

  • Page 44: 3-23) Evaporator In Freezer

    DISASSEMBLY AND REASSEMBLY 3-23) Evaporator In Freezer Part Name How To Do Descriptive Picture Remove the housing connector part left one. Evaporator In Freezer Remove the evaporator by pulling the lower part of the evaporator while lifting it up.

  • Page 45: 3-24) Comp Tcooling Fan

    DISASSEMBLY AND REASSEMBLY 3-24) Comp tCooling Fan Part Name How To Do Descriptive Picture Unscrew 7 point of Cover comp Remove the DRAIN HOSE. Comp Cooling Fan Remove 1 screw. Disengage the HOUSING CONNECTOR. (Refer to the picture)
  • Page 46 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture Pull it forward and lean against the DRAIN HOSE. Comp Cooling Fan Rotate it based on the PIPE. The FAN is disassembled. / Assembly it in reverse order.

  • Page 47: 3-25) Compressor

    DISASSEMBLY AND REASSEMBLY 3-25) COMPRESSOR This appliance contains a small amount of isobutane refrigerant (R-600a), a natural gas with high environmental compatibility that is, however, also flammable. When transporting and installing the appliance, care should be taken to ensure that no parts of the refrigerating circuit are damaged.
  • Page 48 DISASSEMBLY AND REASSEMBLY Part Name How To Do Descriptive Picture Applying Lokprep and connecting the Service Ring_2 - Apply 0.05g of Lokprep onto the pipe - Insert the service ring into the Connect, Suc. pipe and fasten it by screwing it 360° 2 times. Installing manual Lokring Tool - Install manual Lokring Tool on the Service Ring.

  • Page 49: 3-26) Machine Compartment

    DISASSEMBLY AND REASSEMBLY 3-26) Machine Compartment Part Name How To Do Descriptive Picture Disengage the housing connector. Remove Cover Relay. Relay O/L Disassemble Housing Connector from Comp.

  • Page 50: 3-27) Electric Box

    DISASSEMBLY AND REASSEMBLY 3-27) Electric Box Part Name How To Do Descriptive Picture Remove the 2 screw attached to the upper left and right Case PCB Panel with a phillips screwdriver(+). Disengage all housing connectors from the main PCB. PBA Main Before doing the above, make sure that the unit is unplugged.

  • Page 51: Troubleshooting

    4. TROUBLESHOOTING 4-1) Function for failure diagnosis 4-1-1. Test mode (manual operation / manual defrost function) • Press the Fridge and FlexZone buttons at the same time for at least 6 seconds. The Control Display will blink with an interval of 0.5 seconds.
  • Page 52 TROUBLESHOOTING 1-4) If manual operation works, compressor & f-fan operate continuously for 24 hours and fresh food compartment will be controlled by the setting temperature. 1-5) When the manual operation runs, setting temperature will be selected automatically as below: freezer compartment -8℉ (-23℃), fresh food compartment 34℉ (1℃). 1-6) During manual operation, Power Freezer &...
  • Page 53 TROUBLESHOOTING 2) Forced Defrost 2-1) When you press any key one more time at Fridge off Forced Operation [OF r], rd lights up on the Display Panel. At this time, the Forcd Operation stops immediately and R-Defrost will be performed at the same time. 2-2) When you press any key one more time at Forced R-Defrost [rd], Fd lights up on the Display Panel.

  • Page 54: Self-Diagnostic Function

    TROUBLESHOOTING 4-1-2. 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. At this moment, there is no beep sound.
  • Page 55 TROUBLESHOOTING 2) Self-diagnostic function during normal operation 2-1) “oP-Ch" code is repeatedly ON/OFF until Option error settles down. ① ① ① If Fridge Key + FlexZone Key are pressed simultaneously for 10 seconds, the self-diagnosis function will be selected. 2-2) If Fridge Key + FlexZone Key are pressed simultaneously for 6 seconds during normal operation, the temperature setting display will operate for 4 seconds (ON/OFF 0.5sec each).
  • Page 56 TROUBLESHOOTING ※ R Self-diagnostics check list Item Diagnostic method Location image Freezer The voltage of MAIN PCB CN20-"10" ↔ "12": shall be between 4.5V~1.0V Sensor ① ② Fridge The voltage of MAIN PCB CN20-"9" ↔ "11": shall be between 4.5V~1.0V Sensor Freezer compartment...
  • Page 57 TROUBLESHOOTING ※ R Self-diagnostics check list Item Diagnostic method Location image Humidity The voltage of MAIN PCB CN60-"3" ↔ "7": shall be between 4.5V~1.0V sensor ⑬ ⑭ Ice Maker The voltage of MAIN PCB CN90-"14" (Fridge) Sensor ↔ "24": shall be between 4.5V~1.0V Error ⑮...
  • Page 58 TROUBLESHOOTING ※ R Self-diagnostics check list Item Diagnostic method Location image After separating MAIN PCB CN20 wire from PCB, resistance value between CN20-"6" ↔ CN20-"8" shall Freezer be 63(230) ohm ± 7%.(Resistance Defrosting Error value is varied by input power) 0 ohm : heater short, ∞...
  • Page 59 TROUBLESHOOTING ※ R Self-diagnostics check list Item Diagnostic method Location image IO Expander Communication It is desirable to replace Main PBA. ㊻ Error Actually, If there is not a problem, Main ↔ it is desirable to replace Main and Dispenser Panel Dispenser Panel PCB With the Communication oscilloscope after a cable problem...
  • Page 60 TROUBLESHOOTING ※ R Self-diagnostics check list Item Diagnostic method Location image Check voltage of MAIN PCB CN90-"11" ↔ "13" AUTO FILL Infuser Overflow Error - 0V ~ 4.5V : Water overflow - 4.5V ~ 5V : No problem Check if there is a short between Comp start compressor terminals.
  • Page 61 TROUBLESHOOTING ※ R Self-diagnostics check list Item Diagnostic method Location image Check the soldering status of the inverter PCB. (Check if any parts have  ~  Comp IPM Shut short-circuited). Down Error Check if the DC 15V output is less than 13.5V.

  • Page 62: Display Function Of Load Condition

    TROUBLESHOOTING 4-1-3. Display function of Load condition 1) Display function of Load condition ① ① ② ① If Fridge Key and FlexZone Key are pressed simultaneously for 6 seconds, ALL ON/OFF will blink with 0.5interval for 4 seconds. ② If take the finger off from above keys and press Freezer Key, load condition mode will be started. 1) If Fridge Key and FlexZone Key are pressed simultaneously for 6 seconds during normal operation, the temperature setting display of fresh food and Fridge compartments will blink ALL ON/OFF with 0.5 for 4 seconds.
  • Page 63 TROUBLESHOOTING R-10 ⓐ ⓕ ⓑ ⓖ ⓔ ⓒ ⓓ F-10...
  • Page 64 TROUBLESHOOTING ※ Load mode Check list Part Display (LED) Description R-FAN HIGHEST R-10 "a","b" In the case of the R-FAN HIGHEST operation, the corresponding LED is blinked R-FAN HIGH R-1 "a" In the case of the R-FAN HIGH operation, the corresponding LED is blinked R-FAN LOW R-1 "b"...

  • Page 65: Demo Mode 1 : Cooling Off Mode Setting Function (North America Model)

    TROUBLESHOOTING 4-1-4. DEMO MODE 1 : Cooling OFF Mode setting function (North America model) ① ① ② ① Press the Fridge and FlexZone buttons at the same time for at least 6 seconds. The Control Display will blink with an interval of 0.5 seconds.

  • Page 66: Demo Mode 2 : Exhibition Mode Setting Function (All Regions Except For North America)

    TROUBLESHOOTING DEMO MODE 2 : Exhibition Mode setting function (All regions except for North America) ① ① ② ① Pess the Fridge and FlexZone buttons at the same time for at least 6 seconds. The Control Display will blink with an interval of 0.5 seconds.

  • Page 67: Option Setting Function

    TROUBLESHOOTING 4-1-5. Option setting function • Press the Fridge and FlexZone buttons at the same time for at least 6 seconds. The Control Display will blink with an interval of 0.5 seconds. In that case, you may take your fingers off both buttons and press the Fridge button to enter the Option Setting Mode.
  • Page 68 TROUBLESHOOTING KEY control method after converting to option mode Reference Value Reference Value Up Reference Value Down Code Code Change (Rotation) ※ Key control in option mode Door Alarm Key Code Change Key(Rotation) FlexZone Key Reference Value down key Fridge Key Reference Value Up key...
  • Page 69 TROUBLESHOOTING • If the display changes to option setting mode, all displays will be off except freezer and fridge compartments temperature display as below. (Fridge and freezer compartments case will be explained only because all options are operated with the same method according to the option table.) Reference Value Code...
  • Page 70 TROUBLESHOOTING Reference Value Code : If you wait for 20 seconds after completing the setting, MICOM will save the setting value to the EEPROM and normal display will be returned and the option setting mode will be canceled. 4) 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.

  • Page 71: Option Table

    TROUBLESHOOTING 4-1-6. Option TABLE 1) Temperature changing table of freezer compartment Set item Freezer Temp Shift Fridge Room 7-SEG Reference Value Setting value Temp. Reference Value FZ compartment compensation Code 0℉(0.0℃) -1℉ (-0.5℃) -2℉ (-1.0℃) -3℉ (-1.5℃) -4℉ (-2.0℃) -5℉ (-2.5℃) -6℉...
  • Page 72 TROUBLESHOOTING 3) Operation rate changing table of dispenser heater Set item Dispenser Heater Rate Fridge Room 7-SEG Reference Value Setting value Reference Value Rate change FZ compartment Code +0.0% + 20% operation ( up to 100% ) Code ex) If you want to change the dispenser heater operation rate to +20% 4) Temperature changing table of Pantry/Mid Drawer Room Set item Pantry/Mid Drawer Room Temp Shift...
  • Page 73 TROUBLESHOOTING 5) Amount of water supply to ice tray Set item Amount of Water Supply Fridge Room 7-SEG Reference Value Setting value Reference Value Amount of water supply FZ compartment Code setting value Setting value + 10cc Code ex) If you want to change the amount of water supply to ice tray to Setting value + 10cc 6) Time changing table of ice maker dropping standby time Set item...
  • Page 74 TROUBLESHOOTING 7) Temperature changing table of ice room Set item Ice Room Temp Shift Fridge Room 7-SEG Reference Value Setting value Temp. Reference Value FZ compartment compensation Code 0℉(0.0℃) -1℉ (-0.5℃) -2℉ (-1.0℃) -3℉ (-1.5℃) -4℉ (-2.0℃) -5℉ (-2.5℃) -6℉ (-3.0℃) Code -7℉...

  • Page 75: 4-2) Diagnostic Method According To The Trouble Symptom(Flow Chart)

    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 : based on PX41C, PX41C, 502AT/ 103**(ICE MAKER SENSOR(MOLD)/FULL UP, 20Kohm ( Actual measurement = value of the table below X 2 ) ℃...
  • Page 76 TROUBLESHOOTING DATA2. Humidity Sensor table - Voltage output table @23°…, 5Vdc --- HTG3515CH/HTG3535C 19.7 RH[%RH]= - 0.54 0.54 RH(%) Output(mV) RH(%) Output(mV) RH(%) Output(mV) 1903 2821 1012 1930 2848 1039 1957 2875 1066 1984 2902 1093 2011 2929 1120 2038 2956 1147 2065...

  • Page 77: If The Trouble Is Detected By Self-Diagnosis

    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 not operated 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 78 TROUBLESHOOTING 2) If R Sensor has trouble (check the other sensors in the same procedure) ERROR Code Start Is MAIN PCB Connector DATA1. Temperature table CN20 inserted correctly? Bad contact of ** Measuring point of resistance value according to Sensor ** R : CN20 - "9"...
  • Page 79 TROUBLESHOOTING 2) If R Sensor has trouble (check the other sensors in the same procedure) (cont.) ☞ Checking method of R Sensor resistance ☞ Checking method of Sensor resistance R :CN20 - "9“(W/YEL) ↔ "11“(WHT) - Measure the voltage of Resistance R-DEF : CN20 - “5“(YEL) ↔...
  • Page 80 TROUBLESHOOTING 3) If Humidity Sensor has trouble ERROR Code Start Start Is MAIN PCB Connector CN60 insertedcorrectly? Bad contact of ** Measuring point of resistance value according to Sensor" connector /insert correctly Humidity : CN60 - “7" ↔ “16“ Resistance value with opened : about 50Ω ** 0Ω: Short trouble /Ω∞: Open trouble Is HUMIDITY/AMBIENT Sensor unit normal?
  • Page 81 TROUBLESHOOTING 4) Mid Drawer Room Damper Heater has trouble (OPTION) ERROR Code Start Start Is Damper Heater normal?(about135ohm) Bad contact of connector/ insert correctly Measure the voltage of Resistance Is MAIN PCB connector between #25-#27 after (CN40) inserted correctly? CN40 connector open / 1350 ohm ± 7% 1) Wire connector 2) Replace Heater Initial power...

  • Page 82: If Fan Does Not Operate

    TROUBLESHOOTING 4-2-2. If FAN does not operate 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 83: 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. - When pressing the ICE TEST S/W for a certain period of time (over 1.5sec), the function is accomplished.

  • Page 84: When Ice Maker(Ff) Does Not Operate

    TROUBLESHOOTING 4-2-4. When ICE MAKER(FF) does not operate 1. Water will be automatically supplied to the Ice Maker depending on temperature & time conditions, and ice will be produced to dispense. 2. Power is applied to one end of the wires. So, make sure to refer to its Exploded View whenever doing the disassembly. 3.

  • Page 85: If Defrost Does Not Operate (F,R Def Heater)

    TROUBLESHOOTING 4-2-5. If defrost does not operate (F,R DEF Heater) R DEF ERROR F DEF ERROR Start ** Measuring point of resistance value according to heater** F-DEF : CN70 “5”(BRN) ↔ CN71_1 ”5” (BLK) measuring resistance value(63 ohm ± 7%) Are the all deforst R-DEF : CN70 ”3”(WHT) ↔...

  • Page 86: When Power Is Not Applied

    TROUBLESHOOTING 4-2-6. When Power is not applied Caution At the power of SMPS PCB, the AC115(230)V power and a high-voltage over DC 170(325)V are occurred. Start Please take care of yourself on repair and measurement. Is the power plug connected? Make sure the plug is connected and not loose.

  • Page 87: When Compressor Does Not Run (Inverter Comp.)

    TROUBLESHOOTING 4-2-7. When Compressor does not run (Inverter COMP.) Start 10 minutes have passed since COMP was off Check in 10 minutes When Refer to the TEST Function in Forced Operation mode is this manual. activated, COMP operates Forced Operation F-Sensor is Good signal sound should be checked.

  • Page 88: When Alarm Sounds Continuously Without Stop(Related With Buzzer Sound)

    TROUBLESHOOTING 4-2-8. When alarm sounds continuously without stop(related with buzzer sound) ① If 'ding-dong'sound continuously Start 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 changed from 0Ω...
  • Page 89 TROUBLESHOOTING ③ If buzzer does not sound Buzzer is installed on the Assy Top Table in this model. Start Does it sound if press a button on the inner panel (fridge room)? MAIN PCB normal, BUZZER normal. Is the connection between inner panel PBA CN01 and Cabi Wire Harness normal? Check Connector Contact Defect.

  • Page 90: When The Panel Pba Does Not Operate Normally

    TROUBLESHOOTING 4-2-9. When the Panel PBA does not operate normally ① When the entire or a certain section of the Panel PCB does not light up There is a MICOM embedded in the Panel PCB. So, take care when doing repairs. And, except the Solder Touch, replace the PCB.

  • Page 91: When The Dispenser Panel Pba Does Not Operate Normally

    TROUBLESHOOTING 4-2-10. When the Dispenser Panel PBA does not operate normally There is a MICOM embedded in the Dispenser Panel PCB. So, take care when doing repairs. And, except the Solder Touch, replace the PCB. Start Is the connetor insertion of dispenser panel nomal? Reinsert Connector.

  • Page 92: When Refrigerator Room Lamp Does Not Light Up

    TROUBLESHOOTING 4-2-11. When refrigerator ROOM Lamp does not light up When controlling the regrigerator light with Regulator(12V) : LED LAMP → Applying to the F/R Room compartment (Option) * If the Vegetable Lamp does not work properly, check the R compartment LED Lamp because it is connected with the R compartment LED Lamp in parallel.

  • Page 93: If Ice Water Is Not Supplied

    TROUBLESHOOTING 4-2-12. 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. 2) Ice Water(R) Valve PIN Number Start Is the confirming...

  • Page 94: If Cubed Or Crushed Ice Is Not Supplied

    TROUBLESHOOTING 4-2-13. If Cubed or Crushed Ice is not supplied Start Fridge door shall be closed during operation. Are Ices ejected? Are Ices in the Ice bucket? Is “Ice Off" mode ① Check the Ice making switch selected on the display ②...

  • Page 95: If Cover Ice Route Motor(Geard Motor) Is Not Working Normally

    TROUBLESHOOTING 4-2-14. 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 96: Ir Sensor Trouble-Shooting

    TROUBLESHOOTING 4-2-15. IR Sensor Trouble-Shooting 1. When the IR sensor is defective, ice is not produced even if there is no Ice Maker Error, Ice Maker Sensor Error or the Ice Maker Function Error. (When turning on the Self Diagnosis Function, it does not produce ice even if there is no 14C, 15C or 39C being displayed.) 2.

  • Page 97: Led Blinking Frequency Depending On Protecting Functions

    TROUBLESHOOTING 4-2-16. 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 98: Pcb Diagram

    5. PCB DIAGRAM 5-1) PBA Layout with part position ⑩ ⑫ ⑪ ⑦ ⑨ ⑫ ⑮ ⑨ ⑪ ⑧ ⑤ ⑥ ④ ⑬ ⑭ ③ ② ①...
  • Page 99 This document can not be used without Samsung's authorization PCB DIAGRAM 1. EMI FILTER part 2. DC 15V, 12V, 5V, GND supplied from SMPS PCB 3. Inverter circuit part -.COMP Driving / Feedback Circuit -.BOOTSTRAP Charger : It is an independent power circuit for the driving of the IMP High-Phase IGBT.

  • Page 100: 5-2) Connector Layout With Part Position (Main Board)

    This document can not be used without Samsung's authorization PCB DIAGRAM 5-2) Connector Layout with part position (Main Board) CN60 16. GND CN40 17, 19. DAMPER B, B’ 1. +5V 17, 19. MID ROOM 2. INNER PANEL TX 18, 20. MID ROOM LAMP 3.

  • Page 101: Wiring Diagram

    This document can not be used without Samsung's authorization 6. WIRING DIAGRAM...

  • Page 102: Block Diagram

    This document can not be used without Samsung's authorization 7. BLOCK DIAGRAM 7-1) Whole block diagram 7-1-1. MAIN BLOCK...

  • Page 103: Model Code Table

    This document can not be used without Samsung's authorization 8. MODEL CODE TABLE Digit Door/Dispenser Handle/내상 Product Type Capacity Year Series Energy / Buyer Code Option Option Model Code Truffle T-type (4Door Energy 28cf R : 2019 9 9 CHEF...
  • Page 104 Asia: gspn2.samsungcsportal.com North & Latin America: gspn3.samsungcsportal.com China: china.samsungportal.com - 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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