GE JB940 Technical Service Manual Download Page 34

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SURF IND LIGHT

LF SURF ELEM

SURF CONT

THERMAL

LIMITER SW.

LO LO 2

BRIDGE

BURNER

OFF

FRONT

BURNER

FRONT

LEFT FRONT SURFACE

UNIT ONLY

BRIDGE ELEM

TOP

GRND

CYCLING
CONTACT

10.45 K

Ω

VOLTAGE SENSITIVE

LF SURFACE ELEMENT

BRIDGE ELEMENT

SURFACE ELEMENT STRIP CIRCUITS

MODELS:

JB960WB
JB960AB
JB960BB

31.0

Ω

70.0

Ω

SURF IND LIGHT

LF SURF ELEM

SURF CONT

THERMAL

LIMITER SW.

TOP

GRND

CYCLING
CONTACT

10.45 K

Ω

VOLTAGE SENSITIVE

FRONT

BURNER

BRIDGE

BURNER

LO LO 2

OFF

FRONT

LEFT FRONT SURFACE

UNIT + BRIDGE

BRIDGE ELEM

LF SURFACE ELEMENT

BRIDGE ELEMENT

SURF CONT

31.0

Ω

70.0

Ω

SURF IND LIGHT

LR SURF ELEM

SURF CONT

THERMAL

LIMITER SW.

VOLTAGE SENSITIVE

L1 L 2

TOP

REAR

LEFT REAR

SURFACE UNIT

1800 W

32.0

Ω

PILOT

SURFACE

UNIT

15.59 K

Ω

Summary of Contents for JB940

Page 1: ...ng TECHNICAL SERVICE GUIDE 1999 SPECTRA SERIES FREE STANDING ELECTRIC RANGES W TRUETEMP TM 03 99 MODEL SERIES JB960_B JB940_B JBP79_B JBP78_B JBP63_B JBP64_B JBP66_B JBP60_B JBP48_B JBP35_B JBP30_B JBP26_B JBP24_B JBP21_B JBP19_B ...

Page 2: ...sition and properly fastened IMPORTANT SAFETY NOTICE The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical electronic and mechanical experience Any attempt to repair a major appliance may result in personal injury and property damage The manufacturer or seller cannot be responsible for the interpretation of this information nor can i...

Page 3: ...val Cooktop Removal Bake Element Removal Door Switch Removal Oven Liner Removal Control Console Access Infinite Heat Controls Thermal Limiter Switch ERC Special Features ERC Fault Code Memory Test ERC On board Diagnostic Tests Door Latch Mechanism TrueTemp Cooking Schematic Strip Circuits Exploded Parts Views 2 3 4 5 8 9 12 13 13 Table of Contents 14 15 17 18 18 19 20 21 ...

Page 4: ...mance Series JB960AB Almond on almond Largest oven in America Self cleaning convection oven with dedicated third dual loop heating element Super large 4 5 cu ft capacity oven CleanDesign oven interior Right rear 6 element with warming function QuickSet V oven controls see page 6 QuickSet V Two 7 ribbon heating elements with connecting bridge element One dual 6 9 and one 6 ribbon heating element Ea...

Page 5: ...ent With the largest most accurate oven in america and a variety of cooktop elements the GE Spectra Range lets you cook exactly what you want to cook And with CleanDesign cleanup has never been easier or faster Exclusive CleanDesign As for cleanability the CleanDesign oven interior con ceals the lower oven element under a porcelain coated steel surface All you see and clean is a flat smooth oven s...

Page 6: ...00 W RF LARGE 2500 W BOTH ELEMENTS RR 1500 W LF SINGLE 1800 W LF BRIDGE 2600 W LF CENTER LR 1800 W LOCATION WATTAGE COOKTOP CONFIGURATION H I 8 8 HI 6 6 4 2 LO LO 2 4 BRIDGE BURNER OFF FRONT BURNER FRONT REAR TrueTemp Convection OVEN BAKE PROBE SELF CLEAN CLEAR OFF BAKE 1 2 3 4 5 6 7 8 CONVECTION ROAST CONVECTION BROIL CLOCK START HI LO KITCHEN TIMER OVEN LIGHT TOP LIGHT COOKING TIME DELAY START T...

Page 7: ... Oven function icons Glass touch controls Digipad numeric entry Convection conversion Delay bake Oven light pad Control lock capability Start pad Self clean cool down time display Auto self clean Delay clean option Auto oven shut off w override w override w override w override w override w override w override w override Audible preheat signal Dual element bake Automatic meat thermometer Hot surfac...

Page 8: ... JBP79WB AB BB 29 7 8 46 1 2 25 3 8 47 5 8 JBP78WB AB BB 29 7 8 44 7 16 25 3 8 47 5 8 JBP66WB AB BB 29 7 8 44 7 16 25 3 8 47 5 8 JBP64BB 29 7 8 44 7 16 25 3 8 47 5 8 JBP63BB 29 7 8 44 1 2 25 7 16 46 1 8 JBP60BB 29 7 8 44 1 2 25 7 16 46 1 8 Dimension from wall to front of closed oven door handle is 28 7 8 on model JB970 27 3 8 on models JB960 940 JBP79 27 3 4 on models JBP78 66 64 and 27 1 2 on mod...

Page 9: ...ed cooktop Clean Well Cooktop System Lift up cooktop w dual support rods 8 heating elements 2 6 turns 2 6 turns 2 6 turns 2 5 turns 2 5 turns 2 5 turns 1 5 turns 6 heating elements 2 5 turns 2 5 turns 2 5 turns 2 4 turns 2 4 turns 2 4 turns 3 4 turns Warming option Infinite heat controls Plug in Calrod heating elements Deluxe Deluxe Deluxe Grey Grey Black Black Removable 1 piece drip bowls Black B...

Page 10: ...s 1 6 turns 1 6 turns 1 6 turns 1 6 turns 6 heating elements 2 5 turns 3 5 turns 2 5 turns 3 5 turns 3 5 turns 3 5 turns 3 5 turns Infinite heat controls Plug in Calrod heating elements Removable 1 piece drip bowls Chrome Chrome Chrome Chrome Chrome Chrome Chrome Clock and minute timer Dual element bake Heating element ON indicator light Interior oven light Switch Switch Switch Switch Auto Switch ...

Page 11: ...ng on the underside of the meat or poultry Place the shelf in the lowest shelf position A Place the grid on the broiler pan and put the roasting rack over them making sure the posts on the roasting rack fit into the holes in the broiler pan In a convection oven a fan circulates hot air over under and around the food This circulating hot air is evenly distributed throughout the oven cavity As a res...

Page 12: ...ture of the food reaches 100 F the changing internal temp erature will show in the display When the internal temperature of the food reaches the number you have set the probe and the oven turn off and the oven control signals To stop the signal press the CLEAR OFF pad Use hot pads to remove the probe from the food Do not use tongs to pull on it they might damage it CAUTION To prevent possible burn...

Page 13: ...F Convection Roasting Guide Meats Minutes Lb Oven Temp Internal Temp Beef Rib 3 to 5 lbs Rare 20 24 325 F 140 F Medium 24 28 325 F 160 F Well 28 32 325 F 170 F Boneless Rib Top Sirloin Rare 20 24 325 F 140 F Medium 24 28 325 F 160 F Well 28 32 325 F 170 F Beef Tenderloin Rare 10 14 325 F 140 F Medium 14 18 325 F 160 F Pot Roast 2 to 3 lbs chuck rump 35 45 300 F 170 F Pork Bone in 3 to 5 lbs 23 27 ...

Page 14: ...Do not continue to use the soiled surface unit until all of the spillover has been removed Follow the steps underHeavy Burned On Soil to continue the cleaning process NOTE If pots with a thin overlay of aluminum copper or enamel are allowed to boil dry the overlay may bond with the glass cooktop and leave a black discoloration This should be removed immediately before heating again or the discolor...

Page 15: ...ven door is locked to the range cabinet with hinge locks located on top of both door hinges To Remove The Oven Door 1 Fully open the oven door 2 Push the hinge locks down toward the door frame to the unlocked position 3 Raise the door to the broil position 4 Firmly grasp both sided of the door about center ways down the door and lift upwards to disengage the hinge arm from the hinge slot At the sa...

Page 16: ... A lower right 6 While holding the front of the cooktop up ward lower the rear of the cooktop in or der to disengage the cooktop hinges from the hinge pins see illustration B lower right 7 Once the cooktop hinges are disengaged from the hinge pins lift the rear of the cooktop upward and over the hinge pins while pulling the cooktop forward to remove see illustration C lower right Once the cooktop ...

Page 17: ...d by removing the stor age drawer From inside the storage drawer area located just above the left front leveling leg as you face the unit are two 1 inch holes If you shine a light into the top hole you will be able to see the inch hex screw that will need to be re moved in order to remove the side panel 5 Facing side of the panel grasp the front and rear portion of the panel Pull the rear of the p...

Page 18: ...ch cov ers the side of the range and roll it upwards to the top of the range Tuck the end of it under the brace which runs from the front of the oven to the back of the oven This will hold the insulation in place while you service the bake element 8 Remove the two screws which mount and secure the bake element to the frame Note remember the screw on the left is the one which secures the ground wir...

Page 19: ... fit flush against the frame and will protrude enough that you will not be able to re mount it to the frame Tip The bottom area of the bake ele ment housing bows slightly upward in the center this is due to insulation under neath it which forces it slightly upward Using a long bladed screw driver gently push downward on the bake element housing while pushing the element for ward This is also helpf...

Page 20: ... replace the oven liner customer damage you can do so following the steps listed below 1 Remove the cooktop 2 Remove both side panels and metal cov ers metal insulation covers 3 Remove the bake element 4 Remove two inch screws in the back of the cabinet A which secure the liner to the rear wall of the range 5 From the back of the range disengage the two metal hooks of the liner which engage into t...

Page 21: ...bly and oven lamp assembly still mounted to the liner OVEN LINER REINSTALLATION 1 After transfering the convenction fan as sembly lamp assembly sensor and broil element to the new liner slide the new liner back into the cabinet frame 2 Install the two screws from the back of the range which secure the oven liner to the oven frame taking care to ensure that the 2 liner hooks catch into the slots in...

Page 22: ...removed the keypanel assembly can now be pulled away from the control console to gain access to the connector plug This plug connects the keypanel to the ERC Electronic Range Control Control Panel Access 1 Remove power to the unit 2 Lay a protective cloth on the cooktop sur face 3 To obtain access to the control panel com ponents remove the four screws which secure it to the range frame see illust...

Page 23: ...ergized when the cycling contacts are closed THERMAL LIMITER SWITCH Attached to each surface element is a thermal limit switch This switch serves two purposes 1 Controls cooktop surface HOT light op eration 2 Removes power to the surface element in the event that the cooktop glass directly above the element exceeds 1031 F When the temperature of the cooktop glass above the heating element reaches ...

Page 24: ...y shows SF Press the CLOCK pad once The display will show 12 hr Press the CLOCK pad again to change to the 24 hour military time clock The display will show 24 hr If this is your choice press START Press the CLOCK pad again to black out the clock display The display will show OFF If this is your choice press START If the clock is in the black out mode and you want to restore it to the display repe...

Page 25: ...ime for 2 seconds until the display shows SF Press and hold both the CLOCK and KITCHEN TIMER pads until the display starts scrolling HELPFUL USE AND CARE INFORMATION CLOCK The clock must be set before the control for the oven will work the time of day clock cannot be changed during DELAY START It can be changed during a regular bake or broil operation KITCHEN TIMER Does not control oven operation ...

Page 26: ...nce unless separated by a different fault code In this example F3 repeats itself twice the resulting fault code memory display only shows one 3 The same would also be true if F3 repeated itself four times the result showing in the fault code memory display would be one 3 NOT four 3 s If a fourth fault code occurs the ERC will scroll the previous fault codes stored in memory to the left one digit a...

Page 27: ... circuit Ham radio cordless phone etc the door circuit in the unlock mode Control senses oven temperature above 930 F with the door in the door locked mode F3 F4 Open sensor circuit over 2700 ohms Shorted sensor circuit under 950 ohms Could be result of contamination on terminals pinched harness lead or cold solder joint on control Disconnect power to range Disconnect sensor connector at control M...

Page 28: ...u release the START pad the relay will deenergize If the relay does not energize check the following reconfirm that you have entered the test mode correctly check power and wiring connections to the ERC check for an open bake element and lastly suspect a faulty ERC ENERGIZE BROIL CIRCUIT To perform this test press BROIL then START and listen for the broil relay to energize CAUTION if you hold the ...

Page 29: ...HT CIRCUIT To perform this test press OVEN LIGHT then START and listen for the oven light relay to energize Look through the front window of the oven door to see the light come on As soon as you release the OVEN LIGHT pad the oven light relay will de energize If the relay does not energize check the following reconfirm that you have entered the test mode correctly check power and wiring connection...

Page 30: ... cycle of operation testing lock motor operation and front and rear latch switch contacts To perform this test push and hold the SELF CLEAN key pad make sure that the oven door is closed light switch depressed While depressing the SELF CLEAN pad the lock motor will run through a complete cycle Watch the ERC display closely as it will change based on the location of the motor and logic switch conta...

Page 31: ...RUE TEMP PREVIOUS MODELS ERC V TrueTemp with on board SmartLogic man ages and maintains the oven temperature you select ERC controls with TrueTemp SmartLogic can be identi fied by the words TrueTemp located just above the ERC display on the front of the control panel SmartLogic Electronic Control with Platinum Oven Sensor Monitors and maintains oven temperature Senses sudden significant heat loss ...

Page 32: ...W LF INNER ELEM 23 0 57 6 22 2 72 0 32 0 SURFACE ELEMENTS Q2 K2 BR ERC K4 CV K3 BA RR BR TR RF GY LF GY TR LR O TR 02 Q1 K2 K3 K4 COM NDL CONV BA BR LI LI GND N N N BAL LAST FLO LIGHT OV LIGHT DOOR JAMB SW LOCK MOTOR BROIL ELEM BAKE ELEM CONV ELEM N STARTER CF OVEN LIGHT CONV FAN M M SURF LIGHT K1 SURF ELEM SURF ELEM PROTECTOR PROTECTOR DUAL ELEM CONT DUAL ELEM CONT LOCK SW 2 LOCK SW 1 UNLOCK LOCK...

Page 33: ...Ω at Clean Temp Latch circuit shown in UNLOCKED mode MEAT PROBE W 1 2 3 4 5 6 7 8 W Y O BU OVEN TEMP SENSOR L COM MDL LOCK MOTOR DOOR SWITCH N NC C NO ERC K1 Relay Lock motor circuit shown in RUN MODE BAL LAST Q1 OVEN LIGHT ERC BOARD L1 N L1 OVEN LIGHT ERC TOUCH PAD OVEN LIGHT OVEN LIGHT L1 N OVEN LIGHT DOOR OPEN DOOR SWITCH CONV FAN MOTOR CF L1 Q2 M DOOR SWITCH 19 3 Ω 15 0 Ω 15 0 Ω 15 0 Ω L2 CONV...

Page 34: ...60AB JB960BB 31 0 Ω 70 0 Ω SURF IND LIGHT LF SURF ELEM LI L2 SURF CONT THERMAL LIMITER SW 5 2 L2 5 N 2 3 L1 L1 H1 TOP 4 P L2 H2 N 4 3 2 GRND 5 P H2 H1 GRND CYCLING CONTACT 10 45 KΩ VOLTAGE SENSITIVE H I 8 8 HI FRONT BURNER BRIDGE BURNER 6 6 4 2 LO LO 2 4 OFF FRONT LEFT FRONT SURFACE UNIT BRIDGE 3 4 BRIDGE ELEM LF SURFACE ELEMENT BRIDGE ELEMENT SURF CONT N 31 0 Ω 70 0 Ω SURF IND LIGHT LR SURF ELEM ...

Page 35: ...IMITER SW 5 2 L2 5 N 2 3 L1 L1 H1 TOP 4 P L2 H2 N 4 3 2 GRND 5 P H2 H1 GRND CYCLING CONTACT 10 45 KΩ VOLTAGE SENSITIVE RF INNER SURFACE UNIT ONLY 3 4 OUTER ELEM INNER ELEMENT OUTER ELEMENT FRONT 37 0 Ω 55 0 Ω SURF IND LIGHT INNER ELEM LI L2 SURF CONT THERMAL LIMITER SW 5 2 L2 5 N 2 3 L1 L1 H1 TOP 4 P L2 H2 N 4 3 2 GRND 5 P H2 H1 GRND CYCLING CONTACT 10 45 KΩ VOLTAGE SENSITIVE RF INNER OUTER SURFAC...

Page 36: ... 34 Exploded Parts View JB960AB1AA ...

Page 37: ... 35 Exploded Parts View JB960AB1AA ...

Page 38: ... 36 Exploded Parts View JB960AB1AA ...

Page 39: ...ONT PANEL STOR ALMD 1 227 WB02T10029 TOP INSUL RETAINER 1 229 WB35T10021 CONVX INSULATION 1 229 WB35T10017 VENT TUBE INSULATION 1 231 WB35T10012 OVEN TOP SIDE INSULATION 1 232 WB35T10023 OVEN BLACK BTM INSUL 1 233 WB35T10022 HIDDEN BACK INSULATION 1 233 WB49T10005 REFLECTOR PLATE 1 PART NUM DESCRIPTION QTY 241 WB48T10015 OVEN RACK 1 241 WB48T10019 RACK OFFSET DOWN 1 241 WB48T10015 OVEN RACK 1 241 ...

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