Dacor DOB30M977D Series Service Manual
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Dacor DOB30M977D Series Service Manual

Dacor DOB30M977D Series Service Manual

Built in electric wall oven
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OVEN
OVEN
BUILT IN ELECTRIC WALL OVEN
MODEL CODE: DOB30M977D*
CONTENTS
1. PRECAUTIONS ··········································5
2. PRODUCT SPECIFICATIONS ·····················9
3. DISASSEMBLY AND REASSEMBLY ········11
4. TROUBLESHOOTING ······························33
5. PCB DIAGRAM ········································54
6. wIRING DIAGRAM ·································60

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Summary of Contents for Dacor DOB30M977D Series

  • Page 1 OVEN BUILT IN ELECTRIC WALL OVEN MODEL CODE: DOB30M977D* OVEN CONTENTS 1. PRECAUTIONS ··········································5 2. PRODUCT SPECIFICATIONS ·····················9 3. DISASSEMBLY AND REASSEMBLY ········11 4. TROUBLESHOOTING ······························33 5. PCB DIAGRAM ········································54 6. wIRING DIAGRAM ·································60...

  • Page 2: Important Safety Notice

    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. Dacor Technical Service Guide Copyright ©2017...

  • Page 3: Table Of Contents

    Contents 1. Precaution ..........................5 1-1 Forward ..........................5 1-2 Safety Precautions ......................5 1-3 Important Safety Instructions ..................6 1-4 Model & Serial Number Label and Tech Sheet Locations ........8 2. Specifications ........................9 2-1 Table of Specifications ......................9 2-2 Accessory ..........................10 3.
  • Page 4 Contents 5. PCB Diagrams ........................54 5-1 PCB Diagrams (Upper oven) ..................54 5-2 PCB Diagrams (Lower oven) ..................56 5-3 PCB Diagrams (LCD PBA) ....................58 5-4 PCB Diagrams (SUB PBA) ....................59 6. Wiring diagram ........................ 60 6-1 Schematic diagram (Upper oven) ................60 6-2 Schematic diagram (Lower oven) ................

  • Page 5: Precaution

    1-1 Forward This Dacor 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”...

  • Page 6: Important Safety Instructions

    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. For further assistance contact your service agent or manufacturer.
  • Page 7 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 should essential for a good seal. Care should be taken not to not be allowed to accumulate on hood or filter.

  • Page 8: Model & Serial Number Label And Tech Sheet Locations

    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 Number Location (On Top Rear Cover)

  • Page 9: Specifications

    This document can not be used without Samsung’s authorization. 2. Specifications 2-1 Table of Specifications ITEMS NEW MODEL Model Name DOB30M977D* Category Double wall oven Width 30" Overall Installation type Built-In Color availability STS, BLK STS Oven Display Control Electronic clock Control lock capability Audible preheat signal Capacity (cu.ft)

  • Page 10: Accessory

    This document can not be used without Samsung’s authorization. 2. Specifications 2-2 Accessory Item Description Code No. Q’ty RACK WIRE DG67-00124A SENSOR-PROBE DG32-00013A ASS’Y WIRE RACK DG94-01486A...

  • Page 11: Disassembly And Reassembly

    This document cannot 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. 3-1 Preparing remove the Assy-Frame Wall oven Item What to use it for Pictures...

  • Page 12: Removing Pcb-Main

    This document cannot 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. PRECAUTION When you work on the electric oven, be careful when handling the sheet metal parts.

  • Page 13: Removing Smps Pcb

    This document cannot 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. PRECAUTION When you work on the electric oven, be careful when handling the sheet metal parts.

  • Page 14: Removing Control Box

    This document cannot 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. PRECAUTION When you work on the electric oven, be careful when handling the sheet metal parts.

  • Page 15: Removing Sub Pcb

    This document cannot 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. PRECAUTION When you work on the electric range, be careful when handling the sheet metal parts.

  • Page 16: Removing The Latch-Door & Switch-Door Plunger

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-7 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.

  • Page 17: Removing Heater-Broil

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-8 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. CAUTION When you work on the electric oven, be careful when handling the sheet metal parts.

  • Page 18: Removing Heater-Bake

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-9 Removing Heater-Bake Parts Explanation Photo Explanation Disconnect power and remove oven racks. Pull the oven out of its mounting location so that you can access the rear of the unit. Remove It is part name.

  • Page 19: Removing Convection Element, Fan-Convection And Motor-Convection

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-10 Removing Convection Element, Fan-Convection and Motor-Convection Parts Explanation Photo Explanation Disconnect power and remove oven racks. Pull the oven out of its mounting location so that you can access the rear of the unit.

  • Page 20: Removing Lamp

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-11 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. CAUTION When you work on the electric oven, be careful when handling the sheet metal parts.

  • Page 21: Removing Sensor-Thermistor

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-12 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. PRECAUTION When you work on the electric oven, be careful when handling the sheet metal parts.

  • Page 22: Oven Door

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-13 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. WARNING The door is very heavy.

  • Page 23: Oven Door

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-14 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. Note. If the door will not fully open, it Oven Door means that the indentation is not seated correctly in the bottom...

  • Page 24: Glass Inner

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-15 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. WARNING The door is very heavy.
  • Page 25 This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly Parts Explanation Photo Explanation To remove Handle-door 6. Remove each 1 screw from under support handle (L/R). 7. Remove each 2 screws indside of support handle. (L/R) HANDLE- DOOR, GLASS To remove Glass-SUB 1.

  • Page 26: Removing Gasket-Door

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-16 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. PRECAUTION When you work on the electric oven, be careful when handling the sheet metal parts.

  • Page 27: Removing The Wi-Fi Module

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-17 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. Parts Explanation Photo Explanation...

  • Page 28: Removing The Steam Set

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-18 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. Parts Explanation Photo Explanation...

  • Page 29: Assy Steamer

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-19 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. Schematic Diagram &...
  • Page 30 This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly Parts Explanation Photo Explanation Remove clamp steam tube. Remove 2 connectors and 2 tube clamps. Ass’y Steamer Remove 3 screws. Pull 2 TCO forward to separate.

  • Page 31: Assy Generator Sub

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-20 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...

  • Page 32: Motor Ac Pump

    This document cannot be used without Samsung’s authorization. 3. Disassembly and Reassembly 3-21 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. Parts Explanation Photo Explanation...

  • Page 33: Troubleshooting

    This document can not be used without Samsung’s authorization. 4. Troubleshooting 4. Troubleshooting 4-1 Display-Failure 1. Touch UPPER and LOWER for 5 seconds. Information is Cavity_1 Cavity_2 displayed on screen. Upper U_Mode U_Stage U_Current_temp U_Current_AD Lower U_Desired_Temp U_Preheat U_FanSpeed PowerLV Relay_1 Relay_2 Install Test...
  • Page 34 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure 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 C-F2 between the Main and Touch PCB replace Sub PCB...
  • Page 35 This document can not be used without Samsung’s authorization. 4. Troubleshooting Failure SOLUTION CAUSE code 1. Check whether connector at the main pcb has been inserted. The steam sensor is open when the steam mode is on. 2. Check whether connector at the sensor has been inserted. C-70 3.
  • Page 36 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure 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.
  • Page 37 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure 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. * Check main PCB for damage.
  • Page 38 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure "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. * Measure resistance of Lock motor Coil.
  • Page 39 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure "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 or replace damaged harness.
  • Page 40 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure "C-F2" * Disconnect power. * Unplug connector on Sub PCB. * Check if ribbon cable from touch panel is connected properly into Sub PCB *Repair or replace damaged wire.
  • Page 41 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure "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. *Check for shorts between * Replace or repair keypad keypad and the cable...
  • Page 42 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure WATER SENSOR PROBLEM Check if the wire is correctly connected Connect the wire harness correctly between Wall Main PCB (CN340) and test the oven. and Bowl water sensor Replace Wall Main PCB and reconnect all harnesses.
  • Page 43 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-1 Display-Failure 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. Does it operate correctly? Change the Wall Main PCB and test the oven.
  • Page 44 This document can not be used without Samsung’s authorization. 4. Troubleshooting Control PCB Operation Kind of Control PCB Wall Main PCB New FM Main PCB Sub PCB LCD PBA...
  • Page 45 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. Measure supplied voltage at the Replace or repair harness if loose or connector on main PCB L1~N : 120V...
  • Page 46 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.

  • Page 47: Electrical Malfunction

    This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction Troubleshooting (Power) No Power Check terminal block voltage. Check the circuit breaker. (240V,60Hz) Check the terminal block connections Check the wiring. Replace or Repair the wiring Check the votage of PCB, SMPS -input : 120V -output : 12V,5V...
  • Page 48 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 point : 120V ) or check PCB voltage(240V).
  • Page 49 Troubleshooting (Wi-Fi connection) Step 1. - Check whether display is showing • If display is showing WiFi icon, check the ‘Dacor iQ Kitchen’ app. Delete and re-install the app. And then, try again (Follow manual instruction for Dacor iQ Kitchen app).
  • Page 50 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. FIGURE TESTS MEASURE RESULTS...
  • Page 51 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 room temperature) Measure operation of the micro voltage : 120V switch and the motor after removing wire harness from terminals.
  • Page 52 This document can not be used without Samsung’s authorization. 4. Troubleshooting 4-2 Electrical Malfunction FIGURE TESTS MEASURE RESULTS Measure resistance value of the oven temperature sensor. Approx. Oven Sensor Check if wire harness is loose or at room temperature :1080Ω disconnected.
  • Page 53 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 ohms degree F degree C...

  • Page 54: Pcb Diagrams

    This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5. PCB Diagrams 5-1 PCB Diagrams (Upper oven) Parts Number Part Name Function and Rule RY201 RY-Source Relay This is relay which control source of DLB, Bake, Broil, Warming Drawer relay. Broil relay(RY203), Bake relay(RY204), convection relay(RY206) is turned ON/OFF by mi-com signal after DLB relay has been engaged.
  • Page 55 This document can not be used without Samsung’s authorization. 5. PCB Diagrams Parts Number Part Name Function and Rule RY209 Door LED-U Relay This is relay which is connected with Door LED-Upper. RY212 Door LED-L Relay This is relay which is connected with Door LED-Lower. T208 Bake Terminal This is terminal to connect harness with Bake relay.

  • Page 56: Pcb Diagrams (Lower Oven)

    This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5-2 PCB Diagrams (Lower oven) Parts Number Part Name Function and Rule RY201 RY-Source Relay This is relay which control source of DLB, BAKE, BROIL, W/Drawer relay Broil relay(Ry203), Bake relay(Ry204), convection relay(Ry205) will be on-off working by mi-com signal after DLB relay is worked.
  • Page 57 This document can not be used without Samsung’s authorization. 5. PCB Diagrams Parts Number Part Name Function and Rule T211 T202 DLB Terminal This is terminal to connect harness with DLB relay. T201 T210 T206 Convection-Heater Terminal This is terminal to connect harness with convection-heater relay. T207 T208 WD-Heater Terminal...

  • Page 58: Pcb Diagrams (Lcd Pba)

    This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5-3 PCB Diagrams (LCD PBA) Parts Number Part Name Function and Rule CN604 Sub board connector This is connected with LCD sub PBA. CN605 Touch connector This is connected with touch panel. CN603 LCD connector This is connected with LCD.

  • Page 59: Pcb Diagrams (Sub Pba)

    This document can not be used without Samsung’s authorization. 5. PCB Diagrams 5-4 PCB Diagrams (SUB PBA) Parts Number Part Name Function and Rule Main Communication CN200 This is connector which is connected with Main PCB to communicate. Connector Lower Oven Knob Backlight CN501 This is connector which is connected with lower oven knob backlight circuit.

  • Page 60: Wiring Diagram

    This document can not be used without Samsung’s authorization. 6. Wiring diagram 6. Wiring diagram 6-1 Schematic diagram (Upper oven)

  • Page 61: Schematic Diagram (Lower Oven)

    This document can not be used without Samsung’s authorization. 6. Wiring diagram 6-2 Schematic diagram (Lower oven)
  • Page 62 Printed in Korea...

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