Samsung RF23HT Series Service Manual
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Samsung RF23HT Series Service Manual

French door refrigerator
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REFRIGERATOR
REFRIGERATOR
FRENCH DOOR REFRIGERATOR
BASIC : RF23HT*
MODEL NAME : RF23HTEDBSR
MODEL CODE : RF23HTEDBSR/EF
RF23HTEDBSR/EU
RF23HTEDBSR/EO
CONTENTS
1. PRECAUTIONS(SAFETY WARNINGS) ·······5
2. PRODUCT SPECIFICATIONS ······················9
3. DISASSEMBLY AND REASSEMBLY ·········25
4. TROUBLESHOOTING ································60
5. PCB DIAGRAM ········································· 111
6. WIRING DIAGRAM ··································· 116
7. BLOCK DIAGRAM ···································· 117
8. MODEL CODE TABLE ······························ 119

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Summary of Contents for Samsung RF23HT Series

  • Page 1 REFRIGERATOR FRENCH DOOR REFRIGERATOR BASIC : RF23HT* MODEL NAME : RF23HTEDBSR MODEL CODE : RF23HTEDBSR/EF RF23HTEDBSR/EU RF23HTEDBSR/EO REFRIGERATOR CONTENTS 1. PRECAUTIONS(SAFETY WARNINGS) ·······5 2. PRODUCT SPECIFICATIONS ······················9 3. DISASSEMBLY AND REASSEMBLY ·········25 4. TROUBLESHOOTING ································60 5. PCB DIAGRAM ········································· 111 6.
  • 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 ©2014 All rights reserved.

  • Page 3: Table Of Contents

    Contents 1. Precautions(Safety Warnings) ..............5 2. Product Specifications ................9 2-1) Introduction of Main Function ..................10 2-2) Specifications ........................12 2-3) Interior Views ........................13 2-4) Model Specification ......................14 2-5) Dimensions of Refrigerator (Inches) ................18 2-6) Optional Material Specification ..................19 2-7) Refrigerant Route in Refrigeration cycle ..............20 2-7-1.
  • Page 4 Contents 3-30) Electric Box........................57 3-31) Disassemble the WIFI module..................58 3-32) ASSY TOP TABLE ......................59 4. TROUBLESHOOTING ................60 4-1) Function for failure diagnosis ..................61 4-2) Diagnostic method according to the trouble symptom(Flow Chart) ......77 5. PCB DIAGRAM ..................111 5-1) PBA Layout with part position ..................
  • Page 5 1. Precautions(Safety Warnings) Precautions(Safety Warnings) ● Unplug the appliance before the changing or repairing the electric parts. ➝ Be careful the electric shock. ● Always use only the correct replacement parts. ➝ Check the model, rated voltage, rated current and running temperature rating.
  • 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 refrigerator prior to repair. CAUTION/WARNING SYMBOLS DISPLAYED SYMBOLS means “Prohibited”. Indicates that a danger of death or means “Do not disassemble”.
  • Page 7 Precautions(Safety Warnings) ❈ Please let users know following warnings & cautions in detail. Warning & Caution Customers should not store narrow Drugs requiring precise Customers should not store glass temperatures should not be stored or long bottles or food in a small bottles of liquid in the freezer in the refrigerator.
  • 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. MOVING Protect the finish of the flooring.

  • Page 9: Product Specifications

    2. Product Specifications 2-1) Introduction of Main Function ..................10 2-2) Specifications ........................12 2-3) Interior Views ........................13 2-4) Model Specification ......................14 2-5) Dimensions of Refrigerator (Inches) ................18 2-6) Optional Material Specification ..................19 2-7) Refrigerant Route in Refrigeration cycle ..............20 2-7-1.

  • Page 10: 2-1) Introduction Of Main Function

    Product Specifications 2-1) Introduction of Main Function A newly developed SAMSUNG FRENCH DOOR REFRIGERATOR in 2014 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 Product Specifications Secure Auto Close Door System • Secure Auto Close Door System • Cool tight doors • Energy saving • Preventing sweat on fridge doors Easy Handle System • Ez-open Freezer Door • Ergonomic Door Design - The freezer door is more user-friendly. So, it comes as much convenient.

  • Page 12: 2-2) Specifications

    Product Specifications 2-2) Specifications ELECTRICAL SPECIFICATIONS REFRIGERATOR Defrost Control From 12 to 30hrs(comp. run time) Thermo Bimetal Protector 140°F(60°C)(off) 104°F(40°C)(on) Defrost Thermistor(502AT) 50°F(10℃)(off) Electrical Rating AC115V 60Hz 11.6 Amps (Air inlet) (Air inlet) (Air inlet) (Air inlet) Maximum Current Leakage 0.25 mA Maximum Ground Path 0.1 Ohm...

  • Page 13: 2-3) Interior Views

    Product Specifications 2-3) Interior Views Light Door Closer FF Ice-Maker Foldable-Shelf Slide Shelf Fixed Shelf Vertical Hinged Quick-Space Section Glass Shelf (on some models) Door Bins Vegetable & Fruit Drawers Cool Select Pantry PLUS Light FZ Ice-Maker Auto Pull Out Ice Bucket Drawer Freezer...

  • Page 14: 2-4) Model Specification

    Product Specifications 2-4) Model Specification SAMSUNG ITEM SPEC RF23HT** Appearance Cooling Tech Twin Cooling Product Zone Door Shape Contour Special Room Cool Select Pantry F-Room 202↓ Cooling Speed(Min) R-Room 205.0↓ F-Room -31.5↓ -32.8 89.6 (32°C) R-Room 1.7↓ -0.9 F-Room -22.0↓...
  • Page 15 Product Specifications RF23HT** ITEM Model Ice & Water Dispenser with Pantry 35 6/8 Inch (908mm) On Cabinet 24 Inch (613mm) W/O Handle 28 1/2 Inch (726mm) External size With Handle 31 Inch (788mm) W/O Hinge Cap 68 7/8 Inch (1749mm) With Hinge Cap 70 Inch (1777mm) Total...
  • Page 16 Product Specifications Items Specification Model RF23HT** Model MKV190CL2B/E01 Compressor Starting type BLDC Oil Charge FREOL α - 15c 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 RF23HT** Defrost Heater(FRE) Heated at F Defrost AC230V, 230W Defrost Heater(REF) Heated at R Defrost AC230V, 100W Heater-Ice Maker AC230V, 120W Interlock with French AC230V, 2.5W DISPENSER Heater Heater AC230V, 12W FRENCH Heater DC12V, 2.3W Heater Water Pipe R-ROOM DC12V, 2W...

  • Page 18: 2-5) Dimensions Of Refrigerator (Inches)

    Product Specifications 2-5) Dimensions of Refrigerator (Inches) Model : RF23HT** 35 6/8"(908mm) 61 2/3" (1568 mm) 31" (788mm) 28 1/2" (726mm) 3/16"(5mm) 1 1/4" (30.6mm)

  • Page 19: 2-6) Optional Material Specification

    Product Specifications 2-6) Optional Material Specification Part Name Part Code AMOUNT ASSY-PACKING SUB DA99-03490L LED LAMP REF DA97-12606A LED LAMP CASE-VEG R, L DA41-00519S LED LAMP REF(SIDE) DA41-00519Q LED LAMP FRE DA41-00676G ASSY LAMP LED DA96-01119A ASSY CASE LAMP-REF DA97-14543B LEFT...

  • Page 20: 2-7) Refrigerant Route In Refrigeration Cycle

    Product Specifications 2-7) Refrigerant Route in Refrigeration cycle Compressor → Sub-condenser → Pipe hot → Pipe cluster-rear → Dryer → Capillary tube → Refrigerator Evaporator → Pipe cooling → Pipe connect R-F → Freezer evaporator → Suction pipe → Pipe connect suction → Compressor...

  • Page 21: 2-7-1. Principle Of Freezeer

    Product Specifications 2-7-1. PRINCIPLE OF FREEZEER...

  • Page 22: 2-7-2. Operation Theory Of Refrigeration Cycle Components

    Product Specifications 2-7-2. Operation theory of refrigeration cycle components ■Condenser 1) Role: A device which radiates heat to the outside of the refrigerator. As this heat is dispersed, the high temperature/ high pressure vapor refrigerant changes to a liquid state. 2) Types A.
  • Page 23 Product Specifications ■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: 2-8) Cooling Air Circulation

    Product Specifications 2-8) Cooling Air Circulation...

  • Page 25: Disassembly And Reassembly

    3. Disassembly and Reassembly 3-1) PRECAUTION ........................26 3-2) Refrigerator Door ......................27 3-3) Door Handle Refrigerator ....................29 3-4) Door Handle Freezer & Flex zone ................30 3-5) Refrigerator Light ......................31 3-6) Cover-Display & Water-Dispenser ................32 3-7) Water-Dispenser ......................33 3-8) Glass Shelf ........................34 3-9) Foldable Glass Shelf ......................34 3-10) Vegetable &...

  • Page 26: 3-1) Precaution

    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 27: 3-2) Refrigerator Door

    Disassembly and Reassembly 3-2) Refrigerator Door Part Name How To Do Descriptive Picture 1. Remove the 3 screws holding down the Top Table and remove the Top  Table ()  2. Disconnect the electrical () above the upper left door hinge To disconnect the connector () more easily, press the end of the hook () and pull connector.
  • Page 28 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 () attatched to  the lower left and right door hinges. With a wrench(0.4＂), remove the 2 flat head screws () attatched to the lower left and right door hinges.

  • Page 29: 3-3) Door Handle Refrigerator

    Disassembly and Reassembly 3-3) Door Handle Refrigerator Part Name How To Do Descriptive Picture 1. Loose Set Screw with 0.1in Hex wrench and pull front the handle. Door Handle Fridge 2. Remove the cover vinyl of door.

  • Page 30: 3-4) Door Handle Freezer & Flex Zone

    Disassembly and Reassembly 3-4) Door Handle Freezer & Flex zone Part Name How To Do Descriptive Picture 1. Loosen the Set Screw situated at the bottom right of the appliance about 0.1in by using Hex wrench. Door Handle Freezer 2. Pull the Set handle out by moving it to the right side.

  • Page 31: 3-5) Refrigerator Light

    Disassembly and Reassembly 3-5) Refrigerator Light Part Name How To Do Descriptive Picture 1. Press the tabs on the back of the Lamp Cover and take it off. Refrigerator Light 2. Remove the 3 screws And separate the LED panel.

  • Page 32: 3-6) Cover-Display & Water-Dispenser

    Disassembly and Reassembly 3-6) Cover-Display & Water-Dispenser Part Name How To Do Descriptive Picture 1. Remove a screw under the display cover. 2. Remove the display cover by pulling it up. Put the thumbs on the surface door and hold the bottom of the Display Panel with four fingers.

  • Page 33: 3-7) Water-Dispenser

    Disassembly and Reassembly 3-7) Water-Dispenser Part Name How To Do Descriptive Picture 1. Disengage the Housing Connector by pushing a flat-blade screwdriver. 2. Remove 2 screws of the Case Ice Route Assy. Water-Dispenser 3. Pull the Case Ice Route Assy. 4.

  • Page 34: 3-8) Glass Shelf

    Disassembly and Reassembly 3-8) Glass Shelf Part Name How To Do Descriptive Picture 1. Remove the shelf by lifting the front Glass Shelf part of the shelf up and pulling it out. 3-9) Foldable Glass Shelf Part Name How To Do Descriptive Picture Foldable Glass 1.

  • Page 35: 3-10) Vegetable & Fruit Drawers Shelf

    Disassembly and Reassembly 3-10) 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: 3-11) Cool Select Pantry

    Disassembly and Reassembly 3-11) Cool Select Pantry Part Name How To Do Descriptive Picture 1. Remove the cool select pantry by Cool Select Pantry pulling the roller part and lifting it 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: 3-12) Cover Slide Pantry

    Disassembly and Reassembly 3-12) Cover Slide Pantry Part Name How To Do Descriptive Picture 1. Lift up the pantry cover. 2. Lift the left side of pantry cover straightly up to remove. 3. Take out the right side angle of pantry cover.

  • Page 38: 3-13) Case Water Filter

    Disassembly and Reassembly 3-13) 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. 1. Remove the 3 screws holding down the Top Table and remove the Top Table ().

  • Page 39: 3-14) Motor Damper

    Disassembly and Reassembly Part Name How To Do Descriptive Picture 5. Disconnect the 2 Housing connectors  (). Case Water Filter 6. Lift and pull the Case Water Filter out. 3-14) Motor Damper Part Name How To Do Descriptive Picture 1.

  • Page 40: 3-15) Water Filter (Assembly & Disassembly)

    Disassembly and Reassembly 3-15) Water Filter (Assembly & Disassembly) Part Name How To Do Descriptive Picture 1. Turn the water filter count-clockwise. (Refer to the picture) 2. Remove the water filter by pulling it. (Refer to the picture) Water Filter 3.

  • Page 41: 3-17) Door Bin Left Middle

    Disassembly and Reassembly 3-17) Door Bin left Middle Part Name How To Do Descriptive Picture 1. Pull The Gallon Door bin like indicated direction in picture. 2. Take the right side of the bin out by Door Bin left Middle lifting it at an angle along the guide.

  • Page 42: 3-18) Vertical Hinged Section

    Disassembly and Reassembly 3-18) 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.

  • Page 43: 3-19) Evaporator Cover In Refrigerator

    Disassembly and Reassembly 3-19) 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) Be careful not to scratch or break the parts. CAUTION 2. Unscrew 4 screws. 3.

  • Page 44: 3-20) Evaporator In Refrigerator

    Disassembly and Reassembly 3-20) Evaporator In Refrigerator Part Name How To Do Descriptive Picture <Left> 1. Disconnect the housing connector part on left side. Before doing the above, make sure that the unit is CAUTION unplugged. <Right> 2. Disconnect the housing connector Evaporator In on right side.

  • Page 45: 3-21) Super Extended Drawer

    Disassembly and Reassembly 3-21) 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 46: 3-22) Freezer Door

    Disassembly and Reassembly 3-22) Freezer Door Part Name How To Do Descriptive Picture 1. Take out the upper drawer by lifting it up. ② 2. Remove the tilting Pocket (①) by pulling the both brackets (②) ① upward at the same time. 3.

  • Page 47: 3-23) Ice-Maker

    Disassembly and Reassembly 3-23) Ice-Maker Descriptive Picture Part Name How To Do 1. When pressing the Energy-Saver and the Fridge buttons on the Display together for 8 seconds at the same time, it will convert to the Test Mode and the entire Display function will be off.
  • Page 48 Disassembly and Reassembly Descriptive Picture Part Name How To Do 7. Remove the screw from the Duct Tray-ice. 8. With a flat blade screwdriver, push the duct to the right and remove it from the locking tab. (Refer to the image.) 9.
  • Page 49 Disassembly and Reassembly Part Name How To Do Descriptive Picture If the ice maker is frozen, it can be Ice Maker melt by using the steam heater.
  • Page 50 Disassembly and Reassembly Part Name How To Do Descriptive Picture 1. Disconnect the FAN-AUGER-ASSY Connector. 2. Hold the Hook on the bottom of the Auger Motor Fan FAN-AUGER-ASSY and lift it up to make it free from the Locking Tab. 3.

  • Page 51: 3-24) Freezer Light

    Disassembly and Reassembly 3-24) Freezer Light Part Name How To Do Descriptive Picture 1. Remove the cover Freezer lamp () using a flat-blade screwdriver.  Freezer Light 2. Disengage the housing. Before doing the above, make sure that the unit is unplugged. CAUTION 3-25) Door Switch In Freezer Part Name...

  • Page 52: 3-26) Evaporator Cover In The Freezer

    Disassembly and Reassembly 3-26) Evaporator Cover in the freezer Part Name How To Do Descriptive Picture 1. In case of Twin ice maker option, loosen the 2- screws and disconnect the housing connector. 2. Loosen the 2-crews on the Evaporator Cover in left/right evaporator cover, the freezer then lift up the evaporator...

  • Page 53: 3-27) Evaporator Cover In The Freezer

    Disassembly and Reassembly 3-27) Evaporator Cover in the freezer Part Name How To Do Descriptive Picture 1. Separate the steel cover and disconnect the 2- housing connectors on right side. Before conducting the work above, make sure that the unit is CAUTION unplugged.

  • Page 54: 3-28) Comp Cooling Fan

    Disassembly and Reassembly 3-28) Comp Cooling Fan Part Name How To Do Descriptive Picture 1. Unscrew 5 screws of COVER COMP. 2. Remove the DRAIN HOSE. 3. Remove 1 screw. 4. Disengage the HOUSING Comp Cooling Fan CONNECTOR. (Refer to the picture) 5.

  • Page 55: 3-29) Comp Cooling Fan Motor

    Disassembly and Reassembly 3-29) Comp Cooling Fan Motor Part Name How To Do Descriptive Picture 1. Remove the screw with a flat blade screwdriver. 2. Remove the motor fan by pulling the fan out while graping the motor part. Comp Cooling Fan 3.
  • Page 56 Disassembly and Reassembly Part Name How To Do Descriptive Picture 1. Disengage the housing connector. 2. Remove Cover Relay. Relay O/L 3. Remove the relay O/L with a flat- blade screwdriver. (Refer to the picture)

  • Page 57: 3-30) Electric Box

    Disassembly and Reassembly 3-30) Electric Box Part Name How To Do Descriptive Picture 1. Remove the 4 screw attached to the upper left and right Case PCB Panel with a phillips screwdriver(+). 2. Disengage all housing connectors from the main PCB. PBA Main Before doing the above, make sure that the unit is...

  • Page 58: 3-32) Assy Top Table

    Disassembly and Reassembly 3-32) ASSY TOP TABLE Part Name How To Do Descriptive Picture 1. Remove the 3 screw holding down the Top Table and remove the Top  Table (). 2. Remove the ground screw () attached to the top of the cabinet using a screwdriver.
  • Page 59 4. TROUBLESHOOTING 4-1) Function for failure diagnosis ..................61 4-2) Diagnostic method according to the trouble symptom(Flow Chart) ......77...

  • Page 60: 4-1) Function For Failure Diagnosis

    TROUBLESHOOTING 4-1) Function for failure diagnosis 4-1-1. Test mode (manual operation / manual defrost function) • If Freezer Key + Lighting 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 61 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.
  • Page 62 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. At this moment, there is no beep sound.(Refer to self-diagnostic CHECK LIST) 1-3) Self-diagnostic button is recognized only when the error is displayed by the bad sensor.
  • Page 63 TROUBLESHOOTING ※ R Self-diagnostics check list Item Trouble contents Diagnostic method When measuring the voltage between the Main FZ-Sensor Error PCB CN30-"4" ↔ CN76-"1", it should read between 4.5V~1.0V. When measuring the voltage between the Main FF-Sensor Error PCB CN30-"6" ↔ CN76-"1", it should read between 4.6V~1.0V.
  • Page 64 TROUBLESHOOTING ※ R Self-diagnostics check list Item Trouble contents Diagnostic method After separating MAIN PCB CN77 wire from Display error when open error is detected PCB, resistance value between Black ↔ Brown Pantry-Damper- by damper heater : separation of Damper wire shall be 135 ohm±...
  • Page 65 TROUBLESHOOTING 4-1-4. Display function of Load condition ① ① ② ① If Freezer Key + Fridge 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 Lighting, load condition mode will be started. 1) If Freezer Key + Fridge 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 4 seconds.
  • Page 66 TROUBLESHOOTING ※ Load mode Check list Display LED Display contents Operation contents When FF compartment FAN operates with high speed, applicable R-1-ⓐ R-FAN High LED ON When FF compartment FAN operates with low speed, applicable R-1-ⓑ R-FAN Low LED ON R-1-ⓒ...
  • Page 67 TROUBLESHOOTING 4-1-5. Cooling OFF mode setting function ① ① ① ① If Freezer Key + Alarm Key + Fridge Key are pressed for 5 seconds, Cooling Off mode will be started. 1) If Freezer Key + Alarm Key + Fridge Key are pressed simultaneously for 5 seconds during normal operation, Cooling Off mode will be started with buzzer sound(ding-dong).
  • Page 68 TROUBLESHOOTING 4-1-6. Option setting function • If Alarm Key + Fridge 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 69 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 70 TROUBLESHOOTING 4-1-7. Option TABLE 1) Temperature changing table of freezer compartment Set item Freezer Temp Shift MODEL RF23HT* Reference Fridge Room 7-SEG Value Code Reference Value Setting value FZ compartment Temp. Code compensation 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...
  • Page 71 TROUBLESHOOTING 3) Eject waiting time changing table of freezer compartment Ice Maker (RF23HTEDT* Model only) FZ-Room Ice Maker Eject waiting time Shift Set item Reference Fridge Room 7-SEG Value Setting value FZ compartment Setting time Code 58min 57min 56min 55min 54min 53min 52min...
  • Page 72 TROUBLESHOOTING 5) Operation rate changing table of dispenser heater Set item Dispenser Heater Rate Reference Fridge Room 7-SEG Value Setting value Rate change compartment Code +0.0% + 20% operation ( up to 100% ) Code Reference Value ex) If you want to change the dispenser heater operation rate to +20% 6) Temperature changing table of Pantry/Room Code...
  • Page 73 TROUBLESHOOTING 7) Ice Tray water supply of fresh food compartment Ice Maker Set item R compartment ICE TRAY water supply Reference Fridge Room 7-SEG Value Setting value FZ compartment Water settings. Code 65cc 75cc 8) Eject waiting time changing table of fresh food compartment Ice Maker Set item FF-Room Ice Maker Eject waiting time Shift Reference...
  • Page 74 TROUBLESHOOTING 9) Temperature changing table of fresh food compartment Ice Maker. Set item FF-Room Ice Maker Temp Shift MODEL RF23HT* Reference Fridge Room 7-SEG Value Setting value FZ compartment Temp. Code compensation 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℃)

  • 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 ) Voltage Resi s tance Voltage Resi s tance Voltage Resi s tance...
  • Page 76 TROUBLESHOOTING DATA2. Humidity Sensor table - Voltage output table @23°…, 5Vdc --- HTG3515CH/HTG3535CH RH(Temperature compensate ) = RH (Relative Humidity ) + ( Temp(°C) °© 23°C) x 0.05 Voltage Resi s tance Voltage Resi s tance Voltage Resi s tance ℃...
  • Page 77 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.
  • Page 78 TROUBLESHOOTING 2) ICE Maker(FZ) Sensor has troubled 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(FZ) : CN90 9 ↔...
  • Page 79 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 80 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 81 TROUBLESHOOTING 5) If Ambient Sensor has trouble ERROR Code Start Start DATA1. MAIN PCB Connector CN78 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** Ambient : CN78-”8”↔ “12” measuring resistance value Ambient Sensor unit ** Placed in the right top table of upper hinge.
  • Page 82 TROUBLESHOOTING 6) If F Sensor has trouble ERROR Code Start Start Are MAIN PCB DATA1. Connector CN30 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** F : CN30-"1" ↔ "4" measuring resistance value F Sensor unit normal? ** 0Ω: Short trouble / Ω∞: Open trouble Refer to circuit diagram in the manual...
  • Page 83 TROUBLESHOOTING 7) If F DEF Sensor has trouble ERROR Code Start Start DATA1. MAIN PCB Connector CN30 and CN76 Temperature table insert correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** F-DEF : CN30-”5” ↔ CN76-”1” measuring resistance Is FZ DEF Sensor unit normal? value ** 0Ω: Short trouble / Ω∞: Open trouble...
  • Page 84 TROUBLESHOOTING 8) If Ice Room Sensor has trouble ERROR Code Start Start Is MAIN PCB DATA1. Connector CN78 and CN76 inserted Temperature table correctly? Bad contact of connector/ insert correctly ** Measuring point of resistance value according to Sensor ** Ambient : CN78 ”10”↔...
  • Page 85 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 Flex : CN30 ”9”...
  • Page 86 TROUBLESHOOTING 10) If Humidity Sensor has trouble ERROR Code Start Start Is MAIN PCB Connector CN30 inserted correctly? ** Measuring point of resistance value according to Bad contact of connector /insert correctly Sensor" Humidity : CN30 ”1” ↔ ”3” Is Humidity Sensor Resistance value with opened : about 50Ω...
  • Page 87 TROUBLESHOOTING 11) PANTRY 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 ① - ② after (CN77) inserted correctly? CN77 connector open / 1350 ohm ± 7% 1) Wire connector Initial Working...
  • Page 88 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. Therefore, you are advised not to taken it for an error.
  • Page 89 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 Start 1.5sec), the function is accomplished.
  • Page 90 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.
  • Page 91 TROUBLESHOOTING 4-2-5. When ICE MAKER(FZ) 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.
  • Page 92 TROUBLESHOOTING 4-2-6. 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 “3”(Brown) ↔ CN72 ”3” (Gray) measuring Are the all deforst resistance value(63 ohm ± 7%) heater normal? R-DEF : CN70 ”1”(White) ↔...
  • Page 93 TROUBLESHOOTING 4-2-7. If FDSR Door Heater does not operate 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) Ice Water(R) Valve PCB Typical Ground REG1-GND Start Are the FDSR Door...
  • Page 94 TROUBLESHOOTING 4-2-8. When Power is not applied Caution Start At the power of SMPS PCB, the AC115(230)V power and a high-voltage over DC 170(325) V are occurred. Please take care of yourself on repair and measurement. Is the power plug connected? Make sure the plug is connected and not loose.
  • Page 95 TROUBLESHOOTING 4-2-9. When Compressor does not run (Inverter COMP.) Start 10 minutes have passed since COMP was off Check in 10 minutes When Forced Operation Refer to the TEST mode is activated, COMP Function in this manual operates Forced Operation signal sound should be checked F-Sensor is Good COMP operation signal...
  • Page 96 TROUBLESHOOTING 4-2-10. 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 Is the door...
  • Page 97 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 98 TROUBLESHOOTING 4-2-11. When the Panel PCB 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 99 TROUBLESHOOTING 4-2-12. 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 room Does R Door switch operate normally? Check and repair the switch * Refer to <how to repair door switch>...
  • Page 100 TROUBLESHOOTING 4-2-13. When refrigerator ROOM Lamp does not light up When controlling the refrigerator 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 101 TROUBLESHOOTING 4-2-14. 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) Ice Water(R) Valve PCB Typical Ground REG1-GND Start Is the confirming...
  • Page 102 TROUBLESHOOTING 2) Ice Water(F) Valve Typical PCB Ground REG1-GND Start Is the confirming sound of Normal(Check Ice the valve operation heard when water valve hose) Ice maker(FZ) test switch pushed? ☞ Checking method of voltage Based on PCB typical Ground REG1-GND 1) Check the voltage of IC75 -"5"(same voltage as IC01 #80) - ICE Water valve operating (about 5V±0.5V)
  • Page 103 TROUBLESHOOTING 4-2-15. If Cubed or Crushed Ice is not supplied Fridge door shall be Start 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 104 TROUBLESHOOTING 4-2-16. 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 105 TROUBLESHOOTING 4-2-17. 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 14E(C), 15E(C) or 39E(C) being displayed.) 2.
  • Page 106 TROUBLESHOOTING 4-2-18. 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 107: Pcb Diagram

    5. PCB DIAGRAM 5-1) PBA Layout with part position ..................112 5-2) PBA Layout with part position (Inverter Board) ............113 5-3) Connector Layout with part position (Main Board) ............ 114 5-4) Connector Layout with part position (Inverter Board) ..........115...

  • Page 108: 5-1) Pba Layout With Part Position

    This document can not be used without Samsung's authorization PCB DIAGRAM 5-1) PBA Layout with part position 1. DC12V, 5V, GND supplied from SMPS PCB (Not Used) 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.

  • Page 109: 5-2) Pba Layout With Part Position (Inverter Board)

    This document can not be used without Samsung's authorization PCB DIAGRAM 5-2) PBA Layout with part position (Inverter Board) ⑥ ⑤ ③ ④ ① ② 1. PCB Power Supply : From the AC Input Voltage, it supplies DC 15V and 5V to the Inverter circuit for the Compressor control.

  • Page 110: 5-3) Connector Layout With Part Position (Main Board)

    This document can not be used without Samsung's authorization PCB DIAGRAM 5-3) Connector Layout with part position (Main Board) 5-3-1. RF23HT** FDSR Door Heater...

  • Page 111: 5-4) Connector Layout With Part Position (Inverter Board)

    This document can not be used without Samsung's authorization PCB DIAGRAM 5-4) Connector Layout with part position (Inverter Board) 5-4-1. RF23HT** COMP AC INPUT OUTPUT ① : DC 5V ② : GND ③ : COMP. RPM ④ : COMP. Feedback...

  • Page 112: Wiring Diagram

    This document can not be used without Samsung's authorization 6. Wiring Diagram 6-1) Model : RF23HT**...

  • Page 113: Block Diagram

    This document can not be used without Samsung's authorization 7. Block Diagram 7-1) Whole block diagram 7-1-1. MODEL : RF23HT**...
  • Page 114 Block Diagram 7-1-2. MODEL : RF23HT**...

  • Page 115: Model Code Table

    8. Model code table 8-1) RF23HT**...
  • Page 116 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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