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Built in electric wall oven BASIC: NV51K6650D* MODEL: NV51K7770D* MODEL CODE: NV51K7770D* Built in electric wall oven 1. Precaution 2. Product Specification 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagrams 6. Wiring Diagram Refer to the service manual in the GSPN(see rear cover) for the more information.
1-1 Forward This SAMSUNG Service Manual, “Built in electric wall oven” provides the technician with information on the operation and service of the built in electric wall oven.. It is to be used as a training Service Manual. For specific information on the model being serviced, refer to the “Owner’s Manual”...
This document can not be used without Samsung’s authorization. 1. Precaution 1-3 Important Safety Instructions Read and follow all instructions before using your oven to prevent the risk of fire, electric shock, injury to person, or damage when using the oven . This guide doesn’t cover all possible conditions that may occur .
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This document can not be used without Samsung’s authorization. 1. Precaution SELF-CLEAN OVENS VENTILATING HOODS: • Do Not Clean Door Gasket – The door gasket is • Clean Ventilating Hoods Frequently – Grease essential for a good seal . Care should be taken not to should not be allowed to accumulate on hood or filter.
This document can not be used without Samsung’s authorization. 1. Precaution 1-4 Model & Serial Number Label and Tech Sheet Locations This Model / Serial Number label and Tech Sheet locations are shown below . Model & Serial Tech Sheet Location...
This document can not be used without Samsung’s authorization. 2. Specifications 2-1 Table of Specifications ITEMS BASIC MODEL NEW MODEL Model Name NV51K6650DS NV51K7770DS Category Double wall oven Double wall oven Width 30" 30" Overall Installation type Built-In Built-In Color availability...
This document can not be used without Samsung’s authorization. 2. Specifications 2-3 Accessory Item Description Code No. Q’ty RACK WIRE DG67-00124A SENSOR-PROBE DG32-00013A ASSY WIRE RACK DG94-01486A ASSY-PARTITION FLEX DG94-01643A...
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-3 Removing PCB-Main WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-4 Removing SMPS PCB WARNING Disconnect power before servicing the oven Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-5 Removing control box WARNING Disconnect power before servicing the oven Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-6 Removing Sub PCB WARNING Disconnect power before servicing the range Replace all panels before operating range . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-7 Removing Knob lighting module WARNING Disconnect power before servicing the range Replace all panels before operating range . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-8 Removing The Latch-Door & Switch-Door Plunger WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-9 Removing Heater-Broil WARNING Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-10 Removing Heater-Bake Parts Explanation Photo Explanation 1. Disconnect power and remove oven racks . 2. Pull the oven out of its mounting location so that you can access the rear of the unit .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-11 Removing Convection Element, Fan-Convection and Motor-Convection Parts Explanation Photo Explanation 1 . Disconnect power and remove oven racks . 2 . Pull the oven out of its mounting location so that you can access the rear of the unit .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-12 Removing Lamp WARNING Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-13 Removing Assy-partition switch Parts Explanation Photo Explanation 1. Turn off the electrical supply going to the range and pull the oven from its mounting location .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-14 Removing Sensor-Thermistor WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-15 Oven Door WARNING Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-16 Oven Door Parts Explanation Photo Explanation To replace door 1 . Firmly grasp both sides of the door at the top . 2 . Fully open the door .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-17 Handle-Door, Glass Inner WARNING Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
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This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly Parts Explanation Photo Explanation To remove Handle-door 6 . Remove 2 rubber pads and 4 screws 7 . Remove 3 screws to remove handle-door . HANDLE- To remove Glass-Inner...
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-18 Removing Gasket-Door WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-19 Removing the Wi-Fi module WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-20 Removing the steam set WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-21 Assy Steamer WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
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This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly Parts Explanation Photo Explanation 1. Remove clamp steam tube . 2. Remove 2 connectors and 2 tube clamps . Assy Steamer 3. Remove 3 screws . 4. Pull 2 TCO forward to separate .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-22 Assy Generator Sub WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-23 Motor AC Pump WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the oven . Replace all panels before operating oven . Failure to do so can result in death or electrical shock .
This document can not be used without Samsung’s authorization. 4. Troubleshooting 4. Troubleshooting 4-1 Failure Display Codes 1 . Touch FLEX UPPER and FLEX LOWER for 5 seconds . Cavity_1 Cavity_2 Information is displayed on screen . Upper U_Mode U_StageU...
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes Failure SOLUTION CAUSE code 1 . Check whether connector of sub pcb has been inserted . This code occurs if communication 2 . If no issue with connector on Sub PCB has been detected...
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This document can not be used without Samsung’s authorization. 4. Troubleshooting Failure SOLUTION CAUSE code Make sure the partition is inserted properly, and restart the This code appears if the partition oven . If the problem persists, disconnect all power to the...
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes Upper oven sensor Lower oven sensor "C-20" Disconnect power Measure sensor resistance. Replace oven sensor (1080Ω at the room temperature) Check the connector condition of the *reconnect wire harness.(Oven sensor connector...
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes Safety error "C-21" "C-d1" Disconnect power and main PCB. * Check DLB, Bake, Broil,convection * Repair damaged circuit board ∞ relay operation.(Normal: Ω) or replace main PCB.
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes "C-d1" * Disconnect power. * Disconnect harness connected to Lock motor * Check micro switch (com-NC=>closed, when door is unlocked.) * Replace micro switch or Lock motor.
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes "C-F0" * Disconnect power. * Unplug connectors from Sub PCB, Wall Main PCB and New FM Main PCB. Sub PCB Wall Main PCB New FM Main PCB * Check wire harness between * Repair damaged harness or replace.
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes "C-F2" * Disconnect power. * Unplug connector on Sub PCB. * Check if ribbon cable from touch panel is connected normally into Sub PCB * Repair damaged wire or replace.
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes "C-d0" *Disconnect power. *Remove keypad cable from Sub PCB. * Repair sub pcb if circuit is * Check for shorted cable shorted or damaged. connectors and damage to Sub PCB.
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes WATER SENSOR PROBLEM Check if the wire is correctly connected Connect the wire harness correctly between Wall Main PCB (CN340) and test the oven .
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Failure Display Codes Check the ground wire on the sub generator . Check wiring and operate oven again . Is it connected correctly? Check operation of the pump motor and wire connections .
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This document can not be used without Samsung’s authorization. 4. Troubleshooting Control PCB Operation Sort of Control PCB New FM Main PCB Wall Main PCB Sub PCB LCD PBA...
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This document can not be used without Samsung’s authorization. 4. Troubleshooting SYMPTOM DIAGNOSIS REMEDY Measure an input voltage . (240/120V Check circuit breaker . or 208/120V) Check state of a wire connected to Measure an input voltage of terminal Terminal Block block .
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This document can not be used without Samsung’s authorization. 4. Troubleshooting SYMPTOM DIAGNOSIS REMEDY Make sure the keypad cable is Replace pcb if keypad cable is connected connected correctly . correctly . Keypad is not Check whether connector on pcb is Replace or repair after confirming that keypad working correctly .
This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction Troubleshooting (Power) No Power Check the circuit breaker. Check terminal block voltage. Check the terminal block connections (240V,60Hz) Replace or Repair the wiring Check the wiring.
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction Troubleshooting (PCB failure) PCB Failure - Check the input voltage of Repair Faulty wiring - Check Terminal block PCB SMPS (input check- or PCB check voltage(240V).
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Step 1 . - Check whether display is showing • If display is showing WiFi icon, check to ‘Samsung Smart Home’ app . Delete and re-install the app . And then, try again (Follow manual instruction for samsung smart home app) .
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction Component testing procedures WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating range . Failure to do so can result in death or electrical shock .
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction FIGURE TESTS MEASURE RESULTS Lock motor Resistance : 1600~2200Ω (at the room temperature) Measure operation of the micro voltage : 120V switch and the motor after removing wire harness from terminals .
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction FIGURE TESTS MEASURE RESULTS Measure resistance valur value of the oven temperature sensor . Approx. Check if wire harness is loose or at the room temperature :1080Ω...
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This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction Oven sensor resistance (Temperature vs . Sensor resistance) Ro = 1000 Ohms (0˚C), RP = 2757 Ohms, Up = 5V, a = 0.00375 degree F degree C...
This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5. PCB Diagrams 5-1 PCB Diagrams (Upper oven) No . Parts Number Part Name Function and Rule RY201 RY-Source Relay This is relay which control source of DLB, Bake, Broil, Warming Drawer relay .
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This document can not be used without Samsung’s authorization. 5. PCB Diagrams No . Parts Number Part Name Function and Rule T206 Bake Broil Common Terminal This is terminal to common connect bake and broil heater . T207 T205 Broil Terminal This is terminal to connect harness with Broil relay .
This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5-2 PCB Diagrams (Lower oven) No . Parts Number Part Name Function and Rule RY201 RY-Source Relay This is relay which control source of DLB, BAKE, BROIL, W/Drawer Broil relay(Ry203), Bake relay(Ry204), convection relay(Ry205) is turned ON/OFF by mi-com signal after DLB relay has been engaged .
This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5-3 PCB Diagrams (LCD PBA) No . Parts Number Part Name Function and Rule CN503 Sub Board Connector This is connected with sub board . CN501 Touch Connector This is connected with touch pannel .
This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5-4 PCB Diagrams (SUB PBA) No . Parts Number Part Name Function and Rule CN200 Main Communication Connector This is connector which is connected with Main PCB to communicate .