GE Consumer & Industrial PB978DP1BB Technical Service Manual Download Page 11 | Manualshive

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Main Top

Shown in service position

Control Boards

Main Logic Board

Part of Capacitive

Touch Glass

Part of Capacitive

Touch Glass

Tri-Ring Element

Warming Zone Element

Hot Surface Indicator Light Assembly

Right Rear Element

Left Front Element

Left Rear Element

Dual 5 & 8 Inch

240 Volt

1100 Watts

2400 Watts

"Power Boil"

12-Inch Tri-Ring

240 Volt

3000 Watts

6" - 1050 Watts

9" - 900 Watts

12" - 1050 Watts

8 Inch

240 Volt

2000 Watts

Warming

240 Volt

120 Watts

6 Inch

240 Volt

1500 Watts

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Summary of Contents for PB978DP1BB

Page 1: ...N WARMING ZONE DELAY START TIME OF DAY HOLD SEC START BAKE SETTEMP SET UPPER LOWER COOKTIMER SETTEMP 1 FROZEN 2 FRESH STARTTIME 1 POULTRY 2 MEATS DOORO WARM CLEANTIME INSERTPROBE TEMP BROIL HI LO PIZZA SELF CLEAN WARM OVEN LIGHTS START CONTROL LOCKOUT KITCHEN TIMER BROIL HI LO CONVECTION BAKE MELT BURNER SIZE BURNER SIZE SELF CLEAN PROBE SLOW COOK TIMER ON TIMER OFF LOWER OVEN CLEAR OFF COOK TIME ...

Page 2: ... avoid personal injury disconnect power before servicing this product If electrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers used to complete a path to ground are removed for service they must be returned to their original position an...

Page 3: ...e Burner Control 7 Hidden Bake Element 18 Installation 8 Introduction 4 Key Panel Test 24 LIN Test 24 Main Logic Board 20 Main Logic Board Failure Codes 22 Nomenclature 5 Oven Components 16 Oven Sensors 25 Rear Cover Removal 16 Relay Boards Connector Locator Views 13 Relay Board Voltages 25 RPSM Aux Board 17 RPSM Main Board 16 Sales Demo Mode 8 Schematics and Wiring Diagrams 26 Self Clean 7 Test M...

Page 4: ... precise cooking control with fast preheating Convection mode uses reverse air convection technology a bidirectional fan that works with a dedicated third heating element to promote even heat circulation Performance compensation for 208 volt installation boosts power as needed in multifamily dwellings 6 5 cu ft total capacity Cooktop locked out during self clean New motorized self clean door latch...

Page 5: ...ess Steel Indicator for Engineering and Product Service Only Model Year Designator Glass Color Color Match Cook Top Configuration B 30 in Range Nomenclature The letter designating the year repeats every 12 years Example T 1974 T 1986 T 1998 Serial Number The first two numbers of the serial number identify the month and year of manufacture Example AS123456S January 2009 A JAN 2009 S D FEB 2008 R F ...

Page 6: ... setting Some burners have multiple cooking zones Touching the 4 BURNER SIZE pad after the burner is on selects the desired burner size If no selection is made all cooking zones for that burner will be on Touch the 5 ON OFF pad again to turn the burner off Warming Zone Control To use the warming zone Touch the 1 ON OFF pad Touch the 2 SELECT pad for the desired setting L M H Touch the 3 ON OFF pad...

Page 7: ...lean oven To use the cooktop griddle control Touch the 1 ON OFF pad Use the pads to select the desired temperature setting Temperature settings range from 200 F to 2 400 F in 25 F increments The default setting is 375 F PrE will be displayed until the desired temperature is reached The left front and left rear burners will 3 cycle to maintain the selected temperature Touch the 4 ON OFF pad again t...

Page 8: ...cture or the 1 ground wire Connect the green wire to the range body using the grounding screw 2 Connect the single black wire with ribs or the gray stripe wire to the left terminal of the junction box 3 Connect the larger of the two smooth black wires to the right terminal of the junction box and the smaller 4 of the two smooth black wires to the center terminal The cord is to be plugged into a 12...

Page 9: ... a terminal block cord miswire This error will also appear if 120 VAC is not present between MJ21 5 and MJ20 3 It will also appear if there is less than 200 VAC between MJ20 1 and MJ20 3 MJ20 and MJ21 are both located on the RPSM main board See Schematics and Wiring Diagrams ...

Page 10: ...View Control Panel Ovens Front View Shown with oven doors removed Hidden Bake Element Convection Fan and Element Broil Element Broil Element Meat Probe Outlet Bake Element Oven Temperature Sensor Oven Temperature Sensor Incandescent Lamp Halogen Lamp Halogen Lamp ...

Page 11: ...Glass Tri Ring Element Warming Zone Element Hot Surface Indicator Light Assembly Right Rear Element Left Front Element Left Rear Element Dual 5 8 Inch 240 Volt 1100 Watts 2400 Watts Power Boil 12 Inch Tri Ring 240 Volt 3000 Watts 6 1050 Watts 9 900 Watts 12 1050 Watts 8 Inch 240 Volt 2000 Watts Warming 240 Volt 120 Watts 6 Inch 240 Volt 1500 Watts ...

Page 12: ...er Oven Broil Element Lower Oven Broil Element Lower Oven Door Lock Assembly Convection Fan Capacitor Lower Oven Convection Element Upper Oven Door Lock Assembly RPSM Aux Board TCO DRM Board Terminal Block Hidden Bake Harness Main Logic Board Capacitive Touch Assembly Capacitive Touch Assembly ...

Page 13: ...eutral K1 Upper Oven Light K3 Lower Broil Lower Bake Convection Elements K4 Lower Oven Light K5 Lower Broil Boost K7 Lower Bake Convection Elements K8 Not Used K10 Convection Element K11 Upper Broil Boost K13 Upper Door Lock Motor K14 Double Line Break for Lower Bake Lower Broil Convection Lower Broil Boost Elements J7 J10 J20 K13 K8 K11 K5 K4 K1 K3 K7 K10 K14 J14 J21 J15 J16 J17 Relay Jumper Wire...

Page 14: ...J17 Communications K1 LF Inner Element K2 RF Inner Element K4 LF Outer Element K5 CR Element K6 LR Element K8 RF Center Element K10 Double Line Break for RF RR Elements K11 RR Element K13 RF Outer Element K14 Double Line Break for CR LR LF Elements J14 J17 J7 J2 J3 J5 J6 K10 K14 Continued next page K4 K1 K5 K8 K11 K13 K2 K6 ...

Page 15: ...cations J23 L1 J24 Convection Fan K1 Convection Fan K3 Upper Bake Upper Broil Elements K7 Double Line Break for Upper Bake Upper Broil Upper Broil Boost Elements K12 Lower Door Lock Motor K17 Convection Fan K18 Upper Bake Element K7 K3 K1 K17 J23 K18 J15 J6 K12 J24 Continued next page ...

Page 16: ... the cover away from the range 6 and disengage the 3 cover tabs from the slots near the bottom of the range Cover Tab Range Slot Range Slot Range Slot Cover Tab Cover Tab Hidden Screw Ground Screw RPSM Main Board To remove the RPSM main board Remove the rear cover See 1 Rear Cover Removal Note In the following step do not remove the relay jumper wires orange wires from the control board Mark and d...

Page 17: ...he DRM board Remove the rear cover See 1 Rear Cover Removal Mark and disconnect the control board wire 2 harnesses Squeeze the 4 compression tabs to release the 3 board Screw Screw Screw Screw Tab Tab Tab Tab Thermal Cutout TCO The upper and lower ovens are protected by a TCO mounted on the rear of the cabinet The TCO will open if temperatures on the rear reach 150 C 302 F The TCO is a one shot de...

Page 18: ...stance of the element by disconnecting the plug and checking between the orange and yellow wires The resistance reading of a good element is approximately 21 7Ω If the hidden bake element does need to be changed the procedure is the same as for the previous version of the dual cavity oven 21 7Ω Ω COM V Ω ...

Page 19: ...to the control panel To remove the control panel Pull the range out approximately 6 inches from 1 the wall Remove the five in hex head screws that 2 hold the top of the rear panel to the range Rear View 4 Using a stubby or off set Phillips head screwdriver remove the 2 inverted screws that attach the bottom of the control panel to the range Grasp the control panel and pull the bottom out 5 then li...

Page 20: ...onnect the 2 wire harnesses 2 mode select plug and 3 ribbon connectors Remove the two in hex head screws that attach the board to the metal frame Disconnect Disconnect Disconnect Disconnect Note Make sure to transfer the model select plug to the new board before applying power 2 Place the control panel in the service position See Control Panel 3 Remove the main logic board See Main Logic Board 4 R...

Page 21: ... 21 J241 Cooktop and Oven Relay Control Boards LIN Serial J501 Upper Oven Sensor J502 Meat Probe Lower Oven Sensor Model Plug 1180Ω J501 Main Logic Board J502 J241 Meat Probe Lower Oven Sensor ...

Page 22: ...n cavity exceeds 900 F with door unlocked F30x Shorted oven sensor under 950 ohms a Disconnect sensor harness from control Measure resistance Should be 1100 ohms at room temperature with 2 ohms per degree change b Look for damaged harness terminals pins if resistance is OK F31x Open oven sensor over 2950 ohms F32x Temperature measurement circuit redundancy check within Main Logic Board bad Replace...

Page 23: ...l touch key chip signal error Replace Main Logic Board F7A0 Main Logic Board internal touch key chip signal error Replace Main Logic Board F7B0 Main Logic Board internal touch key chip signal error Replace Main Logic Board F800 Main Logic Board memory error Replace Main Logic Board F810 Main Logic Board memory error Replace Main Logic Board F820 Main Logic Board EEPROM memory error Replace Main Lo...

Page 24: ...IME Upper Lower Oven Sensor Temp and ROM version U DELAY TIME Model ID and EEPROM Checksum Upper Conv Fan Direction On with Upper Conv Fan On 10 sec L DELAY TIME Model ID and EEPROM Checksum Lower Conv Fan Direction On with Lower Conv Fan On 10 sec U OVEN LIGHT Upper Oven Light On 10 sec CLOCK All WING L and WING R LEDs while held TIMER ON Mini Light Box and 10 digits all LEDs TIMER OFF all WHITE ...

Page 25: ...at When motor or light is on Lower Oven MK3 NO MK3 NC MK7 COM MK7 NO MK7 NC MK10 COM MK10 NO MK14 COM to L2 to L2 to L2 to L2 to L2 to L2 to L2 MJ7 4 to L2 to L1 DJ 24 to N DJ6 1 to N DJ6 3 to N MJ7 8 to L1 DJ6 7 to N Standby 0 240VAC 240VAC 0 240VAC 240VAC 0 0 120VAC 0 0 0 0 0 Broil Lower 240VAC 0 0 0 0 0 0 240VAC 240VAC 0 0 0 0 Bake Lower 0 240VAC 240VAC 240VAC 0 0 0 240VAC 240VAC 0 0 0 0 Convec...

Page 26: ...grams WARNING Disconnect electrical power before servicing Caution Label all wires prior to disconnection Wiring errors can cause improper and dangerous operation Verify operation after servicing Continued Next Page Wiring Diagram ...

Page 27: ... 27 Continued Next Page Oven and Main Power Wiring ...

Page 28: ... 28 Cooktop Wiring ...

Page 29: ...ty excludes the cost of shipping or service calls to your home Some states do not allow the exclusion or limitation of incidental or consequential damages This warranty gives you specific legal rights and you may also have other rights which vary from state to state To know what your legal rights are consult your local or state consumer affairs office or your state s Attorney General Warrantor Gen...

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