Samsung RS757LHQESR/ Series Service Manual
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Samsung RS757LHQESR/ Series Service Manual

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REFRIGERATOR
RS27FDBTNSR/**
For the latest parts information, Please access to our service web site
( • North America : http://gspn3.samsungcsportal.com)
REFRIGERATOR
TRUE BULIT IN REFRIGERATOR
BASIC MODEL : RS757LHQESR/**
MODEL NAME : RS27FDBTNSR/AA
RS27FDBTNSR/AC
CONTENTS
1. PRECAUTIONS (SAFETY WARNINGS) ·······4
2. PRODUCT SPECIFICATIONS······················8
3. FULL DISASSEMBLY AND ASSEMBLY ···15
4. FUNCTION FOR FAILURE DIAGNOSIS ····31
5. DISASSEMBLY AND REASSEMBLY ········49
6. PCB DIAGRAM ···········································64
7. WIRING DIAGRAM ·····································69
8. BLOCK DIAGRAM ······································70
9. REFERENCE INFORMATION ····················71

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  • Page 1 REFRIGERATOR TRUE BULIT IN REFRIGERATOR BASIC MODEL : RS757LHQESR/** MODEL NAME : RS27FDBTNSR/AA RS27FDBTNSR/AC REFRIGERATOR CONTENTS 1. PRECAUTIONS (SAFETY WARNINGS) ·······4 2. PRODUCT SPECIFICATIONS······················8 3. FULL DISASSEMBLY AND ASSEMBLY ···15 4. FUNCTION FOR FAILURE DIAGNOSIS ····31 5. DISASSEMBLY AND REASSEMBLY ········49 6.
  • Page 2 The manufacturer or dealer cannot be responsible for the interpretation of this information. SAMSUNG ELECTRONICS AMERICA, INC. Technical Service Guide Copyright ©2013 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: Table Of Contents

    Contents 1. Precautions (safety warnings) ..............4 2. Product specifications ................8 2-1) Product Specifications............................ 9 2-2) Dimensions of Refrigerator (Inches) ......................12 2-3) Refrigeration Cycle ............................13 2-3-1. Cold Air Circulation .......................... 14 3. full Disassembly and assembly ..............15 3-1) PRECAUTION ..............................16 3-2) How to Disassemble Each Component for A/S ..................
  • Page 4 Contents 7. Wiring Diagram ..................69 8. Block Diagram ..................70 8-1) Whole block diagram ........................... 70 9. REFERENCE INFORMATION ..............71 9-1) Trouble Shooting ............................71 9-2) Q&A ................................73...

  • Page 5: Precautions (Safety Warnings)

    1. PRECAUTIONS (SAFETY WARNINGS) ●Unplug the appliance before replacing or repairing electrical parts. ⇢ Be careful to avoid electric shock. ●When exchanging the parts, use the correct parts. ⇢ Check the model name, rating voltage, rating current, running temperature symbols. ●When troubleshooting, connect firmly the types of harness.
  • Page 6 PRECAUTIONS (SAFETY WARNINGS) Read all instructions before repairing the product and keep to the instructions in order to prevent danger or property damage. CAUTION/WARNING SYMBOLS DISPLAYED SYMBOLS means Prohibition”. Indicates that Warning means Do not disassemble”. adanger of deathor serious injuryexists. means No contact”.
  • Page 7 PRECAUTIONS (SAFETY WARNINGS) ❈ Please let users know following warnings & cautions in detail. Warning & Caution Do not allow users to store narrow Do not allow users to store Do not allow users to put bottles or kinds of and lengthy bottles or foods in a pharmaceutical products, scientific 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 573lb(260kg).

  • Page 9: Product Specifications

    2. PRODUCT SPECIFICATIONS 2-1) Product Specifications............................ 9 2-2) Dimensions of Refrigerator (Inches) ......................12 2-3) Refrigeration Cycle ............................13 2-3-1. Cold Air Circulation .......................... 14...

  • Page 10: 2-1) Product Specifications

    PRODUCT SPECIFICATIONS 2-1) Product Specifications BASIC Model Name Remark RS27FDBTNSR/AA DYF42SBIWS Product Image Total 27.5 cu.ft (779ℓ) 24.3 cu.ft (688ℓ) GROSS Freezer Room 10.7 cu.ft (303ℓ) 9.2 cu.ft (261ℓ) volume Fridge Room 16.8 cu.ft (476ℓ) 15.1 cu.ft (427ℓ) Width 48 inch (1217 mm) 42 inch (1067 mm) Dimension Height...
  • Page 11 PRODUCT SPECIFICATIONS BASIC Model Name RS27FDBTNSR/AA DYF42SBIWS Model Name MKV190CL2B/E01 MKV190CL2B/E01 Starting Type INVERTER INVERTER Compressor Oil Charge FREOL α-15(ESTER) FREOL α-15(ESTER) Refrigerator FIN CROSS TYPE FIN CROSS TYPE Evaporator Freezer SPLIT FIN TYPE SPLIT FIN TYPE DC14V DC14V STEP MOTOR VALVE Unipolar 1-2 Phase Unipolar 1-2 Phase Excitation Method...
  • Page 12 PRODUCT SPECIFICATIONS BASIC Model Name RS27FDBTNSR/AA DYF42SBIWS F- Defrost Heater AC 115V 300W (SHEATH HEATER) AC 115V, 300W (SHEATH HEATER) F- Drain Heater On upon F-Defrost AC 120V 35W (CORD HEATER) AC 120V, 35W (CORD HEATER) F- SUB Drain Heater AC 115V 10W (COLD HEATER) AC 115V, 10W (COLD HEATER) R- Defrost Heater...

  • Page 13: 2-2) Dimensions Of Refrigerator (Inches)

    PRODUCT SPECIFICATIONS 2-2) Dimensions of Refrigerator (Inches) DOOR 90° OPEN DOOR 135° OPEN (inches) Front and side dimensions Dimensions with doors open MODEL 28.3 83.5 93.5 86.8 42.5 48.4 39.2 13.5 17.7 43.3 DYF42SBIWS (1067mm) (720mm) (2121mm) (2374mm) (2204mm) (1079mm) (1229mm) (995mm) (343mm)

  • Page 14: 2-3) Refrigeration Cycle

    PRODUCT SPECIFICATIONS 2-3) Refrigeration Cycle COMPRESSOR SUB-CONDENSER PIPE DRYER FRE/REF/HOT PIPE REF CAPILLARY TUBE REF EVAPORATOR FRE CAPILLARY TUBE FRE EVAPORATOR REF EVAPORATOR FRE EVAPORATOR COMPRESSOR REF CAPILLARY TUBE FRE CAPILLARY TUBE(RED) DRYER CONNECTOR CAPILLARY (FREEZER COMPARTMENT) (FRIDGE COMPARTMENT) SUB-CONDENSER PIPE...

  • Page 15: Cold Air Circulation

    PRODUCT SPECIFICATIONS 2-3-1. Cold Air Circulation FREEZER FAN FRIDGE FAN REF EVAPORATOR FRE EVAPORATOR FREEZER FRIDGE FRONT...

  • Page 16: Full Disassembly And Assembly

    3. FULL DISASSEMBLY AND ASSEMBLY 3-1) PRECAUTION ..............................16 3-2) How to Disassemble Each Component for A/S ..................17 3-3) Dispenser Cover ............................18 3-4) Handle & Cover Comp & Freezer Door ....................20 3-5) Interior Overview ............................21 3-6) Bin & Shelf & Drawer ...........................22 3-7) Ice Maker &...

  • Page 17: 3-1) Precaution

    FULL DISASSEMBLY AND ASSEMBLY 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 18: 3-2) How To Disassemble Each Component For A/S

    FULL DISASSEMBLY AND ASSEMBLY 3-2) How to Disassemble Each Component for A/S Make sure to turn the refrigerator off before disassembling the components as shown below. 1) The descriptions of external parts are illustrated in the figure below,and the methods of disassembling the parts are indicated in order for you to refer to the relevant page, assigned to each number below.

  • Page 19: 3-3) Dispenser Cover

    FULL DISASSEMBLY AND ASSEMBLY 3-3) Dispenser Cover Part Name How To Do Descriptive Picture 1. After referring to the Dispenser- Display Disassembly, remove the 6 screws after separating the 2 Connectors (Lamp Connector, Wifi Connector) and Temp sensor to disassemble the Display Cover. 2.
  • Page 20 FULL DISASSEMBLY AND ASSEMBLY Part Name How To Do Descriptive Picture ① Loosen the one screw at the bottom of display and remove deco cover. ② Push (-)driver between DISPENSER– display and assy case DISPLAY ice route, pull out the assy case ice route to the front.

  • Page 21: 3-4) Handle & Cover Comp & Freezer Door

    FULL DISASSEMBLY AND ASSEMBLY 3-4) Handle & Cover Comp & Freezer Door Part Name How To Do Descriptive Picture ① After opening the Assy ASSY- Grill, disassemble 10 COVER screws and pull out the COMP Cover. ① Disconnect the 3 housings inside of Machine Compartment.

  • Page 22: 3-5) Interior Overview

    FULL DISASSEMBLY AND ASSEMBLY 3-5) Interior Overview The descriptions of internal parts are illustrated in the photo below and refer to the pages below for disassembling each part. For the parts not illustrated in the photo, refer to the exploded view. Description Description ❶ Ice Storage Bin...

  • Page 23: 3-6) Bin & Shelf & Drawer

    FULL DISASSEMBLY AND ASSEMBLY 3-6) Bin & Shelf & Drawer Part Name How To Do Descriptive Picture ① Hold the bottom of the left long slot with your hand, lift up and pull forward to remove it. ● Not dispensing ice for long periods may cause ice clumps in the ice bucket.

  • Page 24: 3-7) Ice Maker & Evap

    FULL DISASSEMBLY AND ASSEMBLY 3-7) Ice Maker & Evap Part Name How To Do Descriptive Picture ① Remove the Ice Storage Bin then lift up the cover of Winter Closet to the direction of the arrow mark to remove. (Insert the spring into its seat when assembling it again.) ②...
  • Page 25 FULL DISASSEMBLY AND ASSEMBLY Part Name How To Do Descriptive Picture ② After removing the housing from the left wall and the sensor housing on the upper side, pull the evaporator cover out as shown in the photo. ③ Remove the fan motor housing and the heater housing, and pull the upper duct out from the F-Room.
  • Page 26 FULL DISASSEMBLY AND ASSEMBLY Part Name How To Do Descriptive Picture ① F-Room Evaporator –After removing the Fan Motor Ass’ y as shown in the photo, F-Room remove the clamp screw Evaporator – holding the evaporator. Defrost ② Turn the evaporator over Heater/ again to pull it out from its Bimet al/...

  • Page 27: 3-8) Duct & Rail

    FULL DISASSEMBLY AND ASSEMBLY 3-8) Duct & Rail Part Name How To Do Descriptive Picture ① Remove the 6 clamp screws F-Room – ② Pull the upper part of the F-Room Duct Duct Rail ① Refer to the drawer disassembly to (Common remove drawers.
  • Page 28 FULL DISASSEMBLY AND ASSEMBLY Part Name How To Do Descriptive Picture ① Disassemble the front Intake Grille from the retaining hook at the back. R-Room ② Remove the 5 screws to disassemble the upper Sensor Caution cover of the R-Room, and Make sure to atch the unscrew the housing to housing colors.

  • Page 29: 3-9) Unit & Pcb Box

    FULL DISASSEMBLY AND ASSEMBLY 3-9) Unit & Pcb Box Part Name How To Do Descriptive Picture MACHINE ① Right figure displays the COMPARTMENT Machine Compartment. ① Open the Assy-Grille and remove Assy-cover comp. ASSY- ② Remove gas struts from the GRILLE, stud by loosening the clip of the strut with a screw driver.

  • Page 30: 3-10) Motor Damper

    FULL DISASSEMBLY AND ASSEMBLY 3-10) Motor Damper Part Name How To Do Descriptive Picture ① Disassemble circled 2screws. ② Pull out Condenser from PCB-BOX : PCB-BOX. CONDENSER ※ Be careful do not change the terminals during assembly. ① Disassemble the Cover Grill, disassemble the 3 welded sections.

  • Page 31: 3-11) Heater & Water Valve

    FULL DISASSEMBLY AND ASSEMBLY 3-11) Heater & Water Valve Part Name How To Do Descriptive Picture ① After disassembling Ice Maker, disassemble the clip of supply water hose. HEATER- ② Disassemble 2 screws pull WATER out the cover. PIPE ③ If needed, disassemble the Heater Ass’y after disassembling supply water hose.

  • Page 32: Function For Failure Diagnosis

    4. FUNCTION FOR FAILURE DIAGNOSIS 4-1) Test mode (manual operation / manual defrost function) ............... 32 4-2) Display function of Communication error ....................33 4-3) Self Diagnostics function ..........................33 4-4) Load Status Check function ........................36 4-5) Wi-fi(Network) Module Check Function ....................38 4-6) How to Access the AP Mode and register your Smart Home Product ..........

  • Page 33: 4-1) Test Mode (Manual Operation / Manual Defrost Function)

    FUNCTION OFR FAILURE DIAGNOSIS 4-1) Test mode (manual operation / manual defrost function) • If Freezer Key + Alarm 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 34: 4-2) Display Function Of Communication Error

    FUNCTION OFR FAILURE DIAGNOSIS 4-2) Display function of Communication error 1) Display function when Panel ↔ MAIN MICOM communication has error. 1-1) If there is no answer for 10 seconds after the panel micom received the requirement of communication, "PC-Ch" display on the panel PCB will be ON/OFF alternately until the communication error is canceled. (0.5 sec ALL ON, 0.5 sec ALL OFF alternately) 1-2) "PC-Ch"...
  • Page 35 FUNCTION OFR FAILURE DIAGNOSIS ※ Self-diagnostics check list Item Trouble contents Diagnostic method The voltage between Case Connector F-Sensor Error CN2 #1 ↔ #5 should be within 4.5V~1.0V The voltage between Case Connector R-Sensor Error CN3 #1 ↔ #3 should be within 4.5V~1.0V The voltage between Case Connector F-Def Sensor Error CN2 #1 ↔...
  • Page 36 FUNCTION OFR FAILURE DIAGNOSIS ※ Self-diagnostics check list Item Trouble contents Diagnostic method When there is no communication Communication Error between MICOM MAIN ↔ PANEL for To check its defect, a Oscilloscope is between Main ↔ more than 10 seconds, the MICOM needed.

  • Page 37: 4-4) Load Status Check Function

    FUNCTION OFR FAILURE DIAGNOSIS 4-4) Load Status Check function 1) If Freezer Key + Fridge Key are pressed simultaneously for 6 seconds during normal operation, the temperature setting display of fridge and freezer compartments will blink ALL ON/OFF with 0.5 for 2 seconds. 2) At this moment, If Alarm Key after Freezer Key + Fridge Key is pressed, load condition display mode will be returned with alarm.
  • Page 38 FUNCTION OFR FAILURE DIAGNOSIS ※ Self-diagnostics check list Display contents Display (LED) Operation contents When R-FAN HIGHEST operates, applicable LED R-FAN HIGHEST R-1-ⓐ,ⓑ blinks. R-FAN HIGH R-1-ⓐ When R-FAN HIGH operates, applicable LED blinks. R-FAN LOW R-1-ⓑ When R-FAN LOW operates, applicable LED blinks. When R-DEF HEATER operates, applicable LED R-DEF HEATER R-1-ⓒ...

  • Page 39: 4-5) Wi-Fi(Network) Module Check Function

    FUNCTION OFR FAILURE DIAGNOSIS 4-5) Wi-fi(Network) Module Check Function Start Power On Wait 30 seconds Input MAC Address Display mode Display ' 'on the Freezer Temperature segment during 1 min Check HW "4-3-12 Wifi is not Communication of Main - Wifi woring"...

  • Page 40: 4-6) How To Access The Ap Mode And Register Your Smart Home Product

    FUNCTION OFR FAILURE DIAGNOSIS 4-6) How to Access the AP Mode and register your Smart Home Product 1) Run the Smart Hone application, press "+" (add device) in the "Device" screen, and select Refrigerator in the product list. 2) According to the guidance of the screen, enter the information of the wired/wireless sharer to be connected, and press the "Next"...

  • Page 41: 4-8) Refrigerator Option (Service Mode) Function

    FUNCTION OFR FAILURE DIAGNOSIS 4-8) Refrigerator Option (Service Mode) function • Energy Saver Key + Fridge Key are pressed simultaneously for 12 seconds during normal operation, fridge and freezer compartments temperature display will be changed to option setting mode. ※ Key control in option mode Freezer Key Code Down Key Energy Saver Key...
  • Page 42 FUNCTION OFR FAILURE DIAGNOSIS 3) If freezer compartment "4" is set as below freezer compartment code after fridge compartment "0” is set, standard temperature of freezer compartment will be lower than -4℉(-2.0°C). (Refer to the picture "changing the freezer compartment temperature") : 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.

  • Page 43: 4-9) Option Table

    FUNCTION OFR FAILURE DIAGNOSIS 4-9) Option TABLE 1) Temperature changing table of freezer compartment...
  • Page 44 FUNCTION OFR FAILURE DIAGNOSIS 2) Temperature changing table of Fridge compartment...
  • Page 45 FUNCTION OFR FAILURE DIAGNOSIS 3) Ice Tray water supply of freezer compartment Ice Maker (In DISPENSER MODEL with flow sensor Only features) 4) Eject waiting time changing table of freezer compartment Ice Maker (In DISPENSER MODEL Only features)
  • Page 46 FUNCTION OFR FAILURE DIAGNOSIS 5) Eject temperature changing table of freezer compartment Ice Maker (In DISPENSER MODEL Only features) 6) Minimum Comp RPM shifting - This option is rising minimum Comp RPM. As this option is applied, Comp operation.
  • Page 47 FUNCTION OFR FAILURE DIAGNOSIS 7) Temp Display Option - This option is for temp display all on mode. If user wants temp display always on, this option is solution. 8) Operation rate changing table of dispenser heater...

  • Page 48: 4-10) Diagnostic Method According To The Trouble Symptom (Flow Chart)

    FUNCTION OFR FAILURE DIAGNOSIS 4-10) 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...
  • Page 49 FUNCTION OFR FAILURE DIAGNOSIS DATA2. Humidity Sensor table - Voltage output table @23°…, 5Vdc --- HTG3515CH/HTG3535CH RH(Temperature compensate ) = RH (Relative Humidity ) + ( Temp(°C) °c 23°C) x 0.05 Output Output Output RH(%) RH(%) RH(%) (mV) (10 bit) (12 bit) (mV) (10 bit)

  • Page 50: Disassembly And Reassembly

    5. DISASSEMBLY AND REASSEMBLY 5-1) CCase Output Terminal (The Main PCB and the Case Output Terminals are connected with wire connectors.) *Test the terminals on the PCB Case to check for voltage or operation related errors concerning QUEEN PJT.The terminal composition is shown in the diagram. If an error is found while testing the above terminals and the housing connectors,check the inside of the PCB Case.
  • Page 51 DISASSEMBLY AND REASSEMBLY [TBI-UPGRADE]PLATE FIXER HOUSING PIN MAPPING (GRAY COLOR : OPTIONAL SPEC)

  • Page 52: 5-2) How To Enter The Test Mode

    DISASSEMBLY AND REASSEMBLY 5-2) How to Enter the Test Mode 1) When there is no Power (SMPS PCB) CAUTION There are AC input voltage When checking the SMPS PCB, refer running on CN1. So, be cautious when to the Operation descriptions and the Start repairing the unit or measuring values. "Reference"section.
  • Page 53 DISASSEMBLY AND REASSEMBLY 2) When the compressor does not operate (Inverter Comp) START Note When the Inverter PBA LED is on, it indicates that the compressor does 5 minutes has passed operate normally. since Comp Off? Check after 5 minutes Refer to Test Functionin this Compressor runs upon manual Forced Operation? Buzzer sound for Forced Operation has occurred?
  • Page 54 DISASSEMBLY AND REASSEMBLY 3) Troubleshooting based on LED Blinking Frequency When failure is detected by the Inverter PCB, the Compressor will immediately stop if the Compressor is running and there will be a 5 minute standby. During the 5 minute standby, RPM signals will be ignored. That is, even though the Inverter PCB receives the RPM signals, the Compressor does not work.
  • Page 55 DISASSEMBLY AND REASSEMBLY 4) When Defrost does not work START Refer to the Self-Diagnosis F/ R Defrost Sensor is normal? Function in this manual (Check it with Self-Diagnosis) Replace Defective Sensor F-SEN:Measure the voltage between CN2 #1-#5 The Sensor Temperature F-DEF-SENSOR :Measure the voltage between CN2 #1-#6 Value is lower than -5℃? R-SEN : Measure the voltage between CN3 #1-#3 R-DEF-SENSOR :Measure the voltage between CN3 #2-#3...
  • Page 56 DISASSEMBLY AND REASSEMBLY 5) When there is Self-Diagnosis Error (with Defective Sensor) 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 the error message will be displayed. The appliance will not stop operating when the error of sensor is detected during operation of the appliance.
  • Page 57 DISASSEMBLY AND REASSEMBLY 6) When the alarm sound will not turn off. ① When Door Open "Sound" keeps alarming ▶ Freezer Door Closer (5V) START Gap exists Door is not closed completely. Check if there is anything pushing out the Door. Is there any water ▶ Freezer Door Open (0V) penetrated into the Door S/W? Replace Door S/W Does the input voltage of PCB CASE CN7 ⑥-⑬, ⑦-⑬...
  • Page 58 DISASSEMBLY AND REASSEMBLY 7) When the Display is defective or there is Communication Error START Is the connection between Panel PBA CN1 and Door Wire Harness normal? Check the status of the connection between Panel PBA and Door Wire Harness Is the voltage output of the refrigerator normal? (Resistances at the Door Wire Connector ③-⑤...
  • Page 59 DISASSEMBLY AND REASSEMBLY 8) When Fan does not operate • This refrigerator uses the BLDC Fan Motor. The BLDC Motor operates with DC 7~12V. • Under Comp On conditions, the F-Fan operates generally. But, the F-Fan Motor may not work due to various conditions (such as the operating condition of Cool Select Pantry, etc) ,and when the ambient temperature is high or when you open and close the Door once, it operates after one minute delay.
  • Page 60 DISASSEMBLY AND REASSEMBLY 9) When the Freezer / Fridge Lamp does not light up CAUTION 1. When replacing the Freezer Lamp, be sure to turn off the power to prevent electric shock. 2. LED lamps are used in the both of the Fridge and the Freezer compartments of this model. START Remove the Door S/W.
  • Page 61 DISASSEMBLY AND REASSEMBLY 10) When there is problem in the sound function <Caution> T he Panel PBA Power Terminals are sensitive to static electricity. So, please take care while repairing or measuring values. START "Option Setting - Sound" is off? Raise up the Volumn Sound is normal? The Panel PBA CN501 and the speaker are normal? Re-connect the Panel PBA and the Speaker After replacing the Speaker, the sound is normal? Replace Speaker Replace Panel PBA...
  • Page 62 DISASSEMBLY AND REASSEMBLY 11) When the Cover Ice Route Motor (Geared Motor) does not work properly 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. Motor will rotate continuously when the Motor Switch is not sensed. ① When the Cover Ice Motor does not operate START Is Freezer door closed?
  • Page 63 DISASSEMBLY AND REASSEMBLY 12) When the Water Valve does not work Pre-checking 1. Water is directly supplied to the Water Valve. So, make sure to cut off the water before doing repairs. 2. There is electricity flowing in the wire. So, take extra care not to get electric shock. START Does water comes out when Water is selected?
  • Page 64 DISASSEMBLY AND REASSEMBLY 13) When the Crushed / Cube ICE has trouble START NOTE Freezer door shall be closed during operation. It dispenses ice? Is there ice in the ice bucket? Ice Off is selected? ① Check Ice Eject S/W ② Check DOOR S/W(Including Auger Safety Switch) ③ Check Ice Eject Motor ④...

  • Page 65: Pcb Diagram

    6. PCB DIAGRAM 6-1) PBA Layout with part position ........................94 5-2) Connector Layout & Descriptions of Inverter Controller Board .............. 95 5-3) Connector Layout with part position (Main Board) .................. 96 5-4) Connector Layout with part position (Inverter PBA, SMPS PBA) ............97...

  • Page 66: 6-1) Pba Layout With Part Position

    This document can not be used without Samsung's authorization PCB DIAGRAM 6-1) PBA Layout with part position 1. Step-Valve Controling Circuit (TDM Cycle) 2. Fan Motor Driving Circuit - It supplies to various types of motors(7~12V) 3. EEPROM : It stores various types of data 4.

  • Page 67: 6-2) Connector Layout & Descriptions Of Inverter Controller Board

    This document can not be used without Samsung's authorization PCB DIAGRAM 6-2) Connector Layout & Descriptions of Inverter Controller Board • PCB Power Supply : From the AC Input Voltage(115V), it supplies DC 15V and 5V to the Inverter circuit for the Compressor control.

  • Page 68: 6-3) Connector Layout With Part Position (Main Board)

    This document can not be used without Samsung's authorization PCB DIAGRAM 6-3) Connector Layout with part position (Main Board)

  • Page 69: 6-4) Connector Layout With Part Position (Inverter Pba, Smps Pba)

    This document can not be used without Samsung's authorization PCB DIAGRAM 6-4) Connector Layout with part position (Inverter PBA, SMPS PBA)

  • Page 70: Wiring Diagram

    This document can not be used without Samsung's authorization 7. WIRING DIAGRAM...

  • Page 71: Block Diagram

    This document can not be used without Samsung's authorization 8. BLOCK DIAGRAM 8-1) Whole block diagram MAIN BLOCK...

  • Page 72: Reference Information

    9. REFERENCE INFORMATION 9-1) Trouble Shooting PROBLEM SOLUTION •Check that the power plug is properly connected. •Check the set temperature on the digital display is warmer than freezer or fridge inner temperature. The Refrigerator does not •Try setting it to a lower temperature. work at all or it does not chill sufficiently.
  • Page 73 REFORENCE INFORMATION PROBLEM SOLUTION •Did you wait for 12 hours after installation of the water supply line before making ice? Ice Maker is not producing •Is the water line connected and the shut-off valve ice. opened? •Is the Freezer temperature too warm? Try setting the Freezer temperature lower.

  • Page 74: 9-2) Q&A

    REFORENCE INFORMATION 9-2) Q&A Descriptions of symptoms Check Points Corrective Measures ▶Noise (resonance) When the BLDC fan motor If you replace the ambient problems keep on rotates in low RPM, The thermistor with a 2.7K even though the noise friction with air is quite high resistance (detecting generating BLDC and it generates “grinding”...
  • Page 75 REFORENCE INFORMATION Descriptions of symptoms Check Points Corrective Measures ▶What is the solution for For new refrigerators the compressor noises? Check if the refrigerator is Check if the refrigerator leveled. wobbles by shaking with hands. Check if there is enough If there is not enough clearance at the back of the clearance or it is blocked by...
  • Page 76 REFORENCE INFORMATION Descriptions of symptoms Check Points Corrective Measures ▶Why is the fridge Advise customers to adjust its temperature level to one or two compartment not cool? step higher. For example, when the ambient temperature is low (Not a defect) such as in winter (especially, when you use it in the morning with the door not being opened or closed during the night), the compartment temperature could get increased by 33.8~35.6℉.
  • Page 77 REFORENCE INFORMATION Descriptions of symptoms Check Points Corrective Measures ▶What can be done when When the stored food sends out much smell. it sends out much smell ☞ Check if there is any food sending out sustaining smells. in the fridge and the Dried squid, dried laver : Hold on them freezer compartments Pounded garlic : Put it in an airtight container...
  • Page 78 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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