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SERVICE
OVEN
Refer to the service manual in the GSPN(see rear cover) for the more information.
OVEN
BASIC
: NV75N7570RS
MODEL
: NV75N7546RB
MODEL CODE : NV75N7546RB,
NV75N7546RS
Manual
CONTENTS
1. Precaution
2. Product Specification
3. Disassembly and Reassembly
4. Troubleshooting
5. Wiring Diagrams
6. PCB Diagrams

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Table of Contents
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Summary of Contents for Samsung NV75N7570RS

  • Page 1 OVEN BASIC : NV75N7570RS MODEL : NV75N7546RB MODEL CODE : NV75N7546RB, NV75N7546RS Manual SERVICE OVEN CONTENTS 1. Precaution 2. Product Specification 3. Disassembly and Reassembly 4. Troubleshooting 5. Wiring Diagrams 6. PCB Diagrams Refer to the service manual in the GSPN(see rear cover) for the more information.
  • Page 2: Table Of Contents

    Contents 1. Precaution ................1 1-1 Safety precautions ( ) .
  • Page 3: Precaution

    This document can not be used without Samsung’s authorization. 1. Precaution Follow these special safety precautions. 1-1 Safety precautions ( 10. Always connect a test instrument’s ground lead to 1. All repairs should be done in accordance with the procedures described in this manual. This product...
  • Page 4: Specifications

    This document can not be used without Samsung’s authorization. 2. Specifications 2-1 Features BASIC MODEL NEW MODEL Model Name NV75J7570RS NV75N7546RB Model Type Install BUILT-IN BUILT-IN Design GRANDE ARCHE GRANDE ARCHE Main sales point DUAL COOK DUAL COOK Oven Features Cavity Interior C.ENAMEL...
  • Page 5 This document can not be used without Samsung’s authorization. 2-1 Features BASIC MODEL NEW MODEL Single Mode 10. Bottom Heat + Convection 11, Top Heat + Convection 12. Bottom Heat 13. Intensive Cook 14. Pro-Roasting 15. Special Keep Warm Function...
  • Page 6 This document can not be used without Samsung’s authorization. 2-1 Features BASIC MODEL NEW MODEL Control Features Auto cook YES (80EA) YES (80EA) YES (ITALY : NO) Fast Preheating Crispy Clock Cooking time End time & Delay end Timer Oven Temp...
  • Page 7 This document can not be used without Samsung’s authorization. 2-1 Features BASIC MODEL NEW MODEL Specifications Power source 230-240V 50HZ 230-240V 50HZ Volume (usable capacity) Output Power 3,650~3,950W 3,650~3,950W (ITALY : MAX 2850W) 47.2KG APPROX 42KG APPROX Weight 50.0KG APPROX 46.5KG APPROX...
  • Page 8: Accessory

    This document can not be used without Samsung’s authorization. 2-2 Accessory The following accessories are provided with your oven. Description Q’ty RACK-WIRE TRAY-BAKING B Front DEVIDER - 6 -...
  • Page 9: Disassembly And Reassembly

    This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly ■ Tools for Removal and Reassembly Tool 1. Tool : Nut Driver 2. Type : 7mm 3. Remarks : Heater bracket Nut 1. Tool : Nut Driver 2.
  • Page 10: Replacement Of Door Assembly

    This document can not be used without Samsung’s authorization. 3-1 Replacement of Door Assembly Parts Explanation Photo Explanation 1. Turn over the clips of both hinges. Door Assembly 2. With both hands, grasp the middle sides of the oven door.
  • Page 11: Replacement Of Door Glass (3Glass)

    This document can not be used without Samsung’s authorization. 3-2 Replacement of Door Glass (3Glass) Parts Explanation Photo Explanation 1. Use a screwdriver to remove the screws on the left and right sides. 2. Detach the duct-door in the arrow directions.
  • Page 12 This document can not be used without Samsung’s authorization. 3-2 Replacement of Door Glass (3Glass) (Continued) Parts Explanation Photo Explanation 6. When done, reinsert the sheets as follows. ※ Insert sheet 2 between support clip 1 and 2, and sheet 1 into support clip 3 in this order.
  • Page 13: Replacement Of The Oven Top Lamp

    This document can not be used without Samsung’s authorization. 3-4 Replacement of the oven Top lamp Parts Explanation Photo Explanation 1. Take off the cap by turning Counter- Clockwise. 2. If necessary, replace the bulb with a 40 watt, 230~240V, 300°C heat - resistant Top Lamp oven light bulb.
  • Page 14: Replacement Of Assy Control Box

    This document can not be used without Samsung’s authorization. 3-6 Replacement of Assy Control Box Parts Explanation Photo Assy PCB Parts Buzzer Assy LED Display (Sub PCB) Assy PCB Parts (Main PCB) Assy Control Remove 2 Connectors from circled part in the picture.
  • Page 15 This document can not be used without Samsung’s authorization. 3-6 Replacement of Assy Control Box (Continued) - 13 -...
  • Page 16: Replacement Of Motor Fan Cooling

    This document can not be used without Samsung’s authorization. 3-7 Replacement of Motor Fan Cooling Parts Explanation Photo Explanation 1. Remove the Motor Connector. 2. Remove 2 screws. Motor Fan Cooling 3. Turn the Motor toward Clockwise to separate. 3-8 Replacement of Assy cover Air...
  • Page 17: Replacement Of Motor Convection

    This document can not be used without Samsung’s authorization. 3-9 Replacement of Motor Convection Parts Explanation Photo Explanation 1. Remove 5 screws at the back inside cavity to separate the cover casing. 2. Turn Nut-Flange to the left or right To release and separate apacer fan converction and fan convection.
  • Page 18: Replacement Of Heater Convection Twin

    This document can not be used without Samsung’s authorization. 3-10 Replacement of Heater Convection Twin Parts Explanation Photo Explanation 1. Remove 2 Connectors. 2. Remove two screws securing heater convection twin at the rear. Heater Convection Twin 2. Pull the securing bracket at the left forward, and pull it toward the left to separate heater convection twin.
  • Page 19: Replacement Of Thermostat

    This document can not be used without Samsung’s authorization. 3-11 Replacement of Thermostat Parts Explanation Photo Explanation 1. Unlock or remove screw. Thermostat - 17 -...
  • Page 20 This document can not be used without Samsung’s authorization. 3-11 Replacement of Thermostat (Continued) Parts Explanation Thermostat Positioin Main Thermostat Upper Thermostat Lower Thermostat Thermostat Thermostat spec by model Full Touch NV75N7646RS NV75N7646RB NV75N7626RB NV75N7546RB NV75N7546RS Main : 130°C with Main : 130°C with...
  • Page 21: Replacement Of Terminal Block

    This document can not be used without Samsung’s authorization. 3-12 Replacement of Terminal Block Parts Explanation Photo Explanation 1. Remove the 3 screws. Terminal Block 3-13 Replacement of Sensor Thermistor Parts Explanation Photo Explanation 2. Remove one screw. 3. Check the rectangular part. Themister Sensor should be fixed by bracket.
  • Page 22: Replacement Of Heater Grill

    This document can not be used without Samsung’s authorization. 3-14 Replacement of Heater Grill Parts Explanation Photo Explanation 1. Remove 4 Connectors and Ground Wire. 2. Remove each nut frange at right and left sides. 3. Turn the nut circular of inside cavity to...
  • Page 23: Replacement Of Assy Pcb Parts (Main Pcb)

    This document can not be used without Samsung’s authorization. 3-16 Replacement of Assy PCB Parts (Main PCB) The Assembly is reverse order of disjointing. Parts Explanation Photo Explanation 1. Remove a screw. Assy PCB Parts (Main PCB) 2. Separate 2 hook.
  • Page 24: Replacement Of Rack Wire Support

    This document can not be used without Samsung’s authorization. 3-18 Replacement of Rack Wire Support Parts Explanation Photo Explanation Rack Wire 1. Press and pull the Rack wire support. Support 3-19 Replacement of Guide Rail Telescopic Parts Explanation Photo Explanation 1.
  • Page 25: How To Enter The Demo Mode

    This document can not be used without Samsung’s authorization. 3-20 How to enter the Demo mode - Enter the Demo Mode Time set “0:00” and then Press Timer key + OK key at the same time for 5 seconds. - De-activate the Demo Mode Press Timer key + OK key at the same time for 5 seconds again.
  • Page 26: Troubleshooting

    This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Part Checking method Parts Photo Good No Good 0.1 ~ 1 Ω 100 MΩ exceed T.C.O Convection 100 ~ 350 Ω 100 MΩ exceed Motor 10 ~ 150 Ω...
  • Page 27: Temp Sensor Problem

    This document can not be used without Samsung’s authorization. 4-2 Imformation Codes There are a kind of imformation code and two kinds of warning codes. Possible imformation codes during us can be ckecked before service. Press [Fast preheat + OK] and hold them for 5 seconds, imformation codes are displayed. Press [OK] button, the lastest 5 imformation codes can be checked.
  • Page 28: Safety Problem

    This document can not be used without Samsung’s authorization. 4-2-2 Safety Problem Imformation General Function Solution Code - This code occurs when a fire occurs inside cooking compart-ment or the temperature caanot be controlled because of sensor’s failure. - This code occurs the temperature of cooking compartment reaches 350℃...
  • Page 29 This document can not be used without Samsung’s authorization. 4-2-4 C-20 Sensor Code(C-20) Sensor short case Sensor open case Is the sensor wire Is the sensor terminal part connected properly ? of the PCB shorted? Remove any foreign substance From the shorted part Connect the sensor.
  • Page 30: C-D0

    This document can not be used without Samsung’s authorization. 4-2-5 C-d0 Key Short Code (- C-d0 -) Is the key not recognized at all? Is the key recognized intermittently? Is a specific key not recognized? The membrane is defective. S/W problem...
  • Page 31 This document can not be used without Samsung’s authorization. 4-2-6 S-01 Over Time Code (S-01) Is it temperature 30~100°C in oven? Has it worked for 16 hours continuously? Is it temperature 105°C~240°C in oven? Re-check the Cut-Off-Time Has it worked for...
  • Page 32 This document can not be used without Samsung’s authorization. 4-2-7 C-21 Internal Oven Temperature Abnormal Error (C-21) “E-09, E-24, E-0A” 가 표시된다 Has the oven internal temperature An "C-21" reached over 350 degrees? Error occurred. Reconnect the Is the temperature sensor...
  • Page 33: C-F0

    This document can not be used without Samsung’s authorization. 4-2-8 C-F0 Communication Problem(C-F0) Is the wire harness B(10pin) Connect the wire harness B completely disconnected? Is the SUB PCB connected Connect the wire harness B completely with MAIN PCB? Dose the symptom continue? Replace the PCB Rerform the operation again and check if it is working property.
  • Page 34: Power Failure

    This document can not be used without Samsung’s authorization. 4-2-9 Power Failure No Power Reset The circuit braker or - Check terminal block voltage, Check main power 230~240V. - TCO open Check Replace TCO (main TCO) - Check the input voltage of PCB SMPS...
  • Page 35: Tco Open

    This document can not be used without Samsung’s authorization. 4-2-10 TCO Open Note : When oven is operating , if main power off, power oven off, in temporary temperature rise, TCO is possible will can open. TCO Open Replace TCO...
  • Page 36: Pcb Failure

    This document can not be used without Samsung’s authorization. 4-2-11 PCB Failure PCB Failure Replace TCO - TCO Open? - Check the input voltage of PCB SMPS (input checkpoint : 230~240V ) Repair Faulty wiring - Check Terminal block or PCB check voltage(230~240V).
  • Page 37: Failure Of Heating Elements

    This document can not be used without Samsung’s authorization. 4-2-12 Failure of heating elements Failure of heating elements • After removing Heater Wire - Check heater’s terminal - Check Heater resistance (Large G :32.8Ω, Replace heater voltage (230~240V) Small G:48.6Ω, Bottom : 48.1Ω, Conv:44Ω)
  • Page 38: Wiring Diagram

    This document can not be used without Samsung’s authorization. 5. Wiring Diagram - 36 -...
  • Page 39: Pcb Diagram

    This document can not be used without Samsung’s authorization. 6. PCB Diagram 6-1 PCB Diagram - 37 -...
  • Page 40 This document can not be used without Samsung’s authorization. 6-1 PCB Diagram Parts Number Parts Name Function and Rule NV75J7570RS RY200 Source Relay Supply power for all relay RY201 Latch Open Relay Door Latch open control for Pyrolytic model RY202...
  • Page 41: Pcb Diagram

    This document can not be used without Samsung’s authorization. 6-2 PCB Diagram Heater Relay Display SMPS - 39 -...
  • Page 42 GSPN (GLOBAL SERVICE PARTNER NETWORK) Area Web Site Europe, CIS, Mideast & Africa gspn1.samsungcsportal.com Asia gspn2.samsungcsportal.com North & Latin America gspn3.samsungcsportal.com China china.samsungportal.com © Samsung Electronics Co., Ltd. July. 2018 Printed in Korea...

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