Samsung NV51K6650D Service Manual Download | Manualshive

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40

4. Troubleshooting

This document can not be used without Samsung’s authorization.

"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.

END

4-1 Failure Display Codes

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Summary of Contents for NV51K6650D

Page 1: ...ver for the more information 1 Precaution 2 Product Specification 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagrams 6 Wiring Diagram Builtinelectricwalloven Built in electric wall oven BASIC NV51K6650D MODEL NV51K7770D MODEL CODE NV51K7770D ...

Page 2: ...r Broil 16 3 10 Removing Heater Bake 17 3 11 Removing Convection Element Fan Convection and Motor Convection 18 3 12 Removing Lamp 19 3 13 Removing Assy partition switch 20 3 14 Removing Sensor Thermistor 21 3 15 Oven Door 22 3 16 Oven Door 23 3 17 Handle Door Glass Inner 24 3 18 Removing Gasket Door 26 3 19 Removing the Wi Fi module 27 3 20 Removing the steam set 28 3 21 Assy Steamer 29 3 22 Assy...

Page 3: ...ay result in dangerous situations If you need repairs contact a SAMSUNG Service Center or your dealer If the power cord is defective it must be replaced by a qualified service agent with a UL listed range cord Electrical leads and cables should not be allowed to touch the oven Rating plate is located on the left side of trim door The power supply of the appliance should be turned off when it is be...

Page 4: ...en until they have had sufficient time to cool Other surfaces of the appliance may become hot enough to cause burns among these surfaces are oven vent openings and surfaces near these openings oven doors and windows of oven doors Do Not Leave Children Alone Children should not be left alone or unattended in area where appliance is in use They should never be allowed to sit or stand on any part of ...

Page 5: ...de Turn off or disconnect appliance from power supply and have serviced by a qualified technician VENTILATING HOODS Clean Ventilating Hoods Frequently Grease should not be allowed to accumulate on hood or filter When flaming foods under the hood turn the fan on OVEN Use Care When Opening Door Let hot air or steam escape before you remove or replace food in the oven Do Not Heat Unopened Food Contai...

Page 6: ...ot be used without Samsung s authorization 1 4 Model Serial Number Label and Tech Sheet Locations This Model Serial Number label and Tech Sheet locations are shown below Model Serial Number Location Tech Sheet Location On Top Rear Cover ...

Page 7: ...ement 500 watt 120V 500 watt 120V of Racks 3 4 Interior oven light 2 halogen 2 door led 2 halogen 2 door led Cleaning Self clean Hybrid clean Self clean Hybrid clean Lower Oven Capacity cu ft 5 1 5 1 Broil element 4 400 watts 4 400 watts Bake element 3 000 watt 3 000 watt Convection system Yes Yes Convection element 1 300 watt 1 300 watt Steam element of Racks 2 3 Interior oven light 2 halogen 2 d...

Page 8: ... This document can not be used without Samsung s authorization 2 3 Accessory Item Description Code No Q ty RACK WIRE DG67 00124A 4 SENSOR PROBE DG32 00013A 1 ASSY WIRE RACK DG94 01486A 2 ASSY PARTITION FLEX DG94 01643A 1 ...

Page 9: ... back 16 Lower back 14 screws from the Cover Back Main Wire and remove the panel Reassembly of All part is the reverse order of disassembly 3 1 Preparing remove the Assy Frame Wall oven Item How to use Pictures Screw driver Use for assembly and disassembly of all screws Tubing Wrench Use for assembly and disassembly of tubing to the burner cup 7mm Vox Driver Use for assembly and disassembly of inj...

Page 10: ...the sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation PCB Main ASSY PCB MAIN DE92 03960E DE92 04045B 1 Turn off the electrical supply going to the oven 2 Pull the oven away from the wall so that you can access the upper panel 3 To remove upper cover a remove each 2 screws from upper cover of left and right side b remove...

Page 11: ...arts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation SMPS PCB ASSY MODULE DA92 00675A 1 Turn off the electrical supply going to the oven 2 Pull the oven away from the wall so that you can access the upper panel 3 To remove upper cover See step 3 on 3 3 a remove 2 screws from upper cover on the left and right side b remove 3 screws from...

Page 12: ...or electrical shock PRECAUTION When you work on the electric oven be careful when handling the sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Removing control box 1 Unplug the cord or disconnect power 2 Open the oven door 3 Remove 4 screws under the control box 4 Disconnect all of the wire harness connectors Reassemb...

Page 13: ... the electric range be careful when handling the sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Sub PCB ASSY PCB EEPROM DE94 03894B SUB LED 1 Turn off the electrical supply going to the oven 2 Remove 4 screws under the control box See step 1 and 2 on page 14 3 Remove 2 screws and connector on SUB LED module 4 Remove ...

Page 14: ...he sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Premium Plus Knob Removal 1 Turn off the electrical supply going to the oven 2 Pull out the Knob from the control panel 3 Remove 2 screws under the knob 4 Remove control panel from oven See step 1 4 on 3 5 5 Remove knob controller from control panel and disconnect wir...

Page 15: ...l shock CAUTION When you work on the electric oven be careful when handling the sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Latch Door Switch Door Plunger 1 Turn off the electrical supply going to the oven 2 Open the oven door 3 Remove 2 screws from the front of cavity and remove the latch door bracket 4 Remove 2 ...

Page 16: ...sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Broil 1 Turn off the electrical supply going to the oven 2 Open the oven door and remove the racks from inside the oven 3 Remove oven from its mounting location and remove the rear cover 4 Remove 3 wires from the broil element and 2 nut with cutting insulation 5 Remove 1...

Page 17: ...s mounting location so that you can access the rear of the unit 3 Remove Cover Back Main Wire from the unit See step 3 2 4 Remove oven door 5 Unscrew 2 screws and remove Cover Casing 6 Unscrew 2 screws and remove Bracket Convection Heater 7 Unscrew nut of Fan Convection and 2 Fan Convection 8 Unscrew 3 screws and disconnect a Motor Convection wire and Heater Convection wire Reassembly of All part ...

Page 18: ... access the rear of the unit 3 Remove Cover Back Main Wire from the unit See step 3 on page 10 for procedure 4 Remove oven door See Page 29 on page for procedure 5 Unscrew 2 screws and remove Cover Casing 6 Unscrew 2 screws and remove Bracket Convection Heater to remove Heater Convection 7 Unscrew nut of Fan Convection and 2 Fan Convection 8 Unscrew 3 points and disconnect a Motor Convection wire ...

Page 19: ...l panels before operating oven Failure to do so can result in death or electrical shock CAUTION When you work on the electric oven be careful when handling the sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Lamp 1 Disconnect power 2 Remove oven door 3 Remove Heater broil 4 Pull out the glass cover in the oven 5 Unscr...

Page 20: ...ion Photo Explanation Assy partition switch 1 Turn off the electrical supply going to the range and pull the oven from its mounting location 2 Remove cover back main wire See on 3 2 and disconnect the wires from Assy partition switch 3 Remove 2 screws 4 Replace the Assy partition switch Reassembly of All part is the reverse order of disassembly ...

Page 21: ... electric oven be careful when handling the sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Sensor Thermistor 1 Turn off the electrical supply going to the oven and remove the oven from its mounting location 2 Remove oven door and racks from inside the oven 3 Unscrew Sensor Thermistor 4 Remove Cover Back Main Wire and...

Page 22: ...oor by the door handle CAUTION When you work on the oven be careful when handling sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Oven Door To remove Oven Door 1 Disonnect wire harness 1 Fully open the door with pressing the lever 2 Pull the hinge locks downward 3 Firmly grasp both side of the door at the top 4 Close ...

Page 23: ...Photo Explanation Oven Door To replace door 1 Firmly grasp both sides of the door at the top 2 Fully open the door Note If the door will not fully open it means that the indentation is not seated correctly in the bottom edge of the slot Push the hinge locks up to the locked position 3 Close the oven door 4 Connect wire harness ...

Page 24: ... handle CAUTION When you work on the oven be careful when handling sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation HANDLE DOOR GLASS INNER To remove the HANDLE DOOR and GLASS INNER Prepare Step 1 Remove the oven door from the oven 2 Place the oven door on a padded work surface with the front glass facing down 3 Remove...

Page 25: ...on HANDLE DOOR GLASS INNER To remove Handle door 6 Remove 2 rubber pads and 4 screws 7 Remove 3 screws to remove handle door To remove Glass Inner 1 Remove 4 screws to remove the Glass inner sub 2 Remove 4 screws to remove LED assy and 2 sub glasses 3 Remove 10 screws to remove Baffle door and take out the Glass inner assembly ...

Page 26: ...es may be present and you can cut yourself if you are not careful Parts Explanation Photo Explanation Gasket door 1 Open the oven door to its fully down position 2 Pull the ends of the gasket out of the liner holes 3 Pull the oven door gasket clips out of the holes until all of the clips are removed Note When you install the new gasket make sure that all of the clips are seated in their liner hole...

Page 27: ...t power before servicing the oven Replace all panels before operating oven Failure to do so can result in death or electrical shock Parts Explanation Photo Explanation WI FI MODULE 1 Turn off the electrical supply 2 Remove Cover top front See step 3 on 3 3 3 Disconnect wire harness 4 Pull out the Wi Fi module and remove connector Note Use caution when releasing tabs ...

Page 28: ...n Failure to do so can result in death or electrical shock Parts Explanation Photo Explanation Remove the steam set 1 Turn off the electrical supply 2 Pull the oven away from the wall so that you can access the upper panel 3 To remove upper cover See step 3 on 3 3 a remove each 2 screws from upper cover of left and right side b remove 3 screws from upper cover of upside 4 Disconnect wire harness 5...

Page 29: ... 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 Schematic Diagram Structure Water tank Water pump Drain pump Upper oven Hybrid clean pump Lower oven Hybrid clean pump Sub Generator Steam Generator Cavity ...

Page 30: ...ly This document can not be used without Samsung s authorization Parts Explanation Photo Explanation Assy Steamer 1 Remove clamp steam tube 2 Remove 2 connectors and 2 tube clamps 3 Remove 3 screws 4 Pull 2 TCO forward to separate ...

Page 31: ...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 Parts Explanation Photo Explanation Assy Generator Sub 1 Remove Connector 2 Remove 2 Holder tube and 2 screws ...

Page 32: ... 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 Parts Explanation Photo Explanation Motor AC Pump 1 Remove 2 holder tube 2 Remove 2 screws 3 Remove 2 rubber covers 4 Remove the other side in the same way ...

Page 33: ...o the door lock motor normal voltage AC 120V 4 Check whether door locking switch is working normally C F0 This code occurs if communication between the Main and Sub PCB is interrupted 1 Check whether connector on main pcb has been inserted correctly 2 Check whether connector on sub pcb has been inserted correctly 3 If no issue with connector on Main and Sub PCBs has been detected replace Main PCB ...

Page 34: ...0Ω at the room temperature If there are any problems replace oven sensor 2 Check the resistance of broil bake and convection heater 3 Check whether DLB broil bake and convection relays on the Main PCB are working normally 4 Check whether any part of a wire harness on Main PCB is disconnected 5 Check the resistance of oven sensor connector on main pcb Normal 2850Ω 6 Unit will display C 21 after bee...

Page 35: ...her connector at the sensor has been inserted 3 If connector at the Main PCB and the sensor are inserted correctly replace the temperature sensor 4 If the problem is still not solved replace the Main PCB The steam sensor is shorted when the steam mode is on C 72 The drain system related problem Occurs when water level sensor senses water remaining after maximum draining time 1 Check the ground wir...

Page 36: ...e harness Oven sensor connector and CN320 of main PCB Measure resistance of the connector CN320 at the Main PCB Open Ω Short under 10Ω Make sure circuit board soldered joints or any related parts on Main PCB have not been damaged Repair the damage or replace the Main PCB if necessary Replace oven sensor reconnect repair damaged harness or replace END END Main PCB NEW FM MAIN CN320 Main PCB WALL MA...

Page 37: ...ration Normal Ω Check main PCB for damage Measure oven sensor resistance 1080Ω at the room temperature Check connection condition of the oven sensor wire harness Check connector and harness connected to main PCB Check whether harness on connector CN320 on main PCB is correctly Disconnect power and main PCB Ok Ok Ok No END Reconnect after replacing the oven sensor No Replace or repair the harness R...

Page 38: ...ance of Lock motor Coil 1750 1850Ω at the room temperature Check oven sensor See page 29 Check if voltage is present at the lock motor terminals allowing it to operate Ok Ok No No Repair damaged harness or replace Check whether harness connected normally into CN201 of main PCB Measure resistance of Cn201 on Main PCB COM NO at the room temperature COM black color NO yellow color No Replace main PCB...

Page 39: ...Main PCB Check wire harness between Wall main New FM main and Sub PCBs Check connector pins on Sub Wall main and New FM main pcb for short circuits Ok Ok Ok No No Replace Sub PCB and make sure it works Repair damaged harness or replace END END END Repair shorted pins or damaged part of the circuit 4 1 Failure Display Codes Wall Main PCB Sub PCB New FM Main PCB ...

Page 40: ...t can not be used without Samsung s authorization 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 END 4 1 Failure Display Codes ...

Page 41: ...r Remove keypad cable from Sub PCB Check for shorted cable connectors and damage to Sub PCB Check for shorts between keypad and the cable Ok Ok No No Replace Control PCB Touch Control PCB Glass Repair sub pcb if circuit is shorted or damaged Replace or repair keypad END END END 4 1 Failure Display Codes ...

Page 42: ...Check if the wire is correctly connected between Wall Main PCB CN340 and Bowl water sensor Connect the wire harness correctly and test the oven Replace the water sensor and reconnect the sensor Test the oven Replace Wall Main PCB and reconnect all harness Does the same symptoms still exist WATER SENSOR PROBLEM ...

Page 43: ... authorization 4 1 Failure Display Codes Check wiring and operate oven again Check operation of the pump motor and wire connections Does it operate correctly Check the ground wire on the sub generator Is it connected correctly Change the Wall Main PCB and test the oven ...

Page 44: ...44 4 Troubleshooting This document can not be used without Samsung s authorization Control PCB Operation Sort of Control PCB New FM Main PCB Wall Main PCB Sub PCB LCD PBA ...

Page 45: ...nals normal 0 ohoms Check whether harness connected to terminal of a thermostat is loose or disconnected Measure voltage regulator on main PCB IC02 7812 DC 12V IC03 7805 DC 5V Replace the thermostat Replace or repair harness Replace or repair after check PCB Oven temperature rises slowly Make sure wire harness connected to broil bake and convection heaters is not loose or disconnected Repair and r...

Page 46: ...ction fan is not spinning Check whether convection fan relay on Wall Main PCB New FM Main PCB and connector is working normally Replace or repair Relay Replace or repair connector Make sure harness between Sub PCB Wall Main PCB and New FM Main PCB has been connected correctly Replace or repair harness Replace or repair connector Replace Wall Main PCB and New FM Main PCB Smell or smoke during initi...

Page 47: ...ooting Power Check terminal block voltage 240V 60Hz YES YES YES NO No Power Check the wiring NO Check the votage of PCB SMPS input 120V output 12V 5V Replace the defected PCB Check the terminal block connections Check the circuit breaker Replace or Repair the wiring 4 2 Electrical Malfunction ...

Page 48: ...PCB SMPS Output check point 5V 12V Check the pcb input voltage 5V 12V GND Reset the circuit braker or check main power Repair Faulty wiring or PCB check Check Terminal block voltage 240V Repair the relay or replace PCB Do all relays operate Replace PCB Replace PCB Troubleshooting PCB failure Replace or Repair the wiring YES YES NO NO YES YES YES NO NO NO 4 2 Electrical Malfunction ...

Page 49: ...If network version is shown normally try to use smart control feature again If network version is missing check the wi fi module 2 b b Remove the wi fi module see page 3 21 removing the wi fi module for the procedure Check input voltage on wi fi module 5V If input voltage is ok replace wi fi module If input voltage is not present check the the wire harness the connector and Sub PCB 2 c 1 GND 2 USB...

Page 50: ...ause heater element will cycle On and Off Approx 18 21Ω at the room temperature Terminal voltage of bake heater AC 240V Replace or repair harness Replace or repair main PCB of each oven Upper oven Wall main PCB Lower oven New FM PCB Convenction Heater Measure resistance value of the heater terminals after removing connectors from the heater Measure voltage of heater terminals after selecting conve...

Page 51: ... Lower Convection Fan Measure resistance value of a motor after removing wire harness off the terminals Measure Input voltage to the motor after selecting convection bake on the key pad Make sure to measure voltage for more then one minute as fan will normally cycle on and off Approx Convection Fan 20 30Ω Terminal Voltage of Convection Fan 120V Replace or repair harness Replace or repair main PCB ...

Page 52: ...t be used without Samsung s authorization 4 2 Electrical Malfunction FIGURE TESTS MEASURE RESULTS Measure resistance valur value of the oven temperature sensor Check if wire harness is loose or disconnected Approx at the room temperature 1080Ω ...

Page 53: ...ms degree F degree C ohms 0 17 8 932 12 113 45 1170 17 14 10 961 86 122 50 1188 93 23 5 980 95 212 100 1374 93 32 0 1000 00 302 150 1558 01 41 5 1019 02 392 200 1738 06 50 10 1038 02 482 250 1915 39 59 15 1056 99 572 300 2089 69 68 20 1075 92 662 350 2261 07 77 25 1094 83 752 400 2429 52 86 30 1113 71 842 450 2595 05 95 35 1132 56 932 500 2757 65 104 40 1151 38 1000 538 2878 57 4 2 Electrical Malf...

Page 54: ... RY206 is turned ON OFF by mi com signal after DLB relay has been engaged Broil relay Reversing position of the Brown wire will not cause a problem Bake relay Reversing position of the Blue wire will not cause a problem 7 RY211 Cooling Motor High Relay This is relay to control Cooling Motor which is in upper cavity 8 RY210 Cooling Motor Lower Relay This is relay to control Cooling Motor which is i...

Page 55: ...0V_LINE 33 CN200 Relay Connector WATER TANK MOTOR CW WATER TANK MOTOR CCW PYROFREE PUMP2 LIVE 34 CN550 Water Tank Sensing Connector This connector which is connected with Water Tank sensor 35 CN201 Relay Connector DOOR LED U DOOR LED L 36 CN340 Steam Temp This connector which is connected with Steam temp sensor 37 CN470 Sub Communication Connector This is connector which is connected with Sub PCB ...

Page 56: ...TION Cooling Fan This is a spare relay This relay is connected with Cooling fan Hi in this model 9 RY212 Oven Lamp L Relay This is relay which is connected with Oven Lamp Low 10 RY211 Oven Fan L Relay This is relay which is connected with Oven Fan Low 11 RY208 Conv Fan U Relay This is relay which is connected with Conv Fan 12 RY209 Conv Lamp U Relay This is relay which is connected with Conv Lamp ...

Page 57: ...1 CN503 Sub Board Connector This is connected with sub board 2 CN501 Touch Connector This is connected with touch pannel 3 CN601 LCD Connector This is connected with 7 0 LCD 4 CN603 Speaker Connector This is connected with speaker 5 CN703 Wi Fi Connector This is connected with Wi Fi module 5 3 PCB Diagrams LCD PBA 1 2 3 4 5 ...

Page 58: ...r Oven Knob Backlight Connector This is connector which is connected with lower oven knob backlight circuit 5 CN700 Touch Film Connector This is connector which is connected touch film 6 CN220 Upper Oven Dial Connector This is connector which is connected upper oven dial Jog Dial Mode Dial 7 CN180 HASS Connector This is connector which is HASS 8 CN520 Key Backlight Connector This is connector whic...

Page 59: ...59 This document can not be used without Samsung s authorization 6 Wiring diagram 6 1 Schematic diagram Upper oven ...

Page 60: ...60 6 Wiring diagram This document can not be used without Samsung s authorization 6 2 Schematic diagram Lower oven ...

Page 61: ...mber 2017 Printed in Korea 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 ...

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