GE JP350, Technical Service Manual

Page 1: ...PUB 31 9070 01 01 MODEL SERIES TECHNICAL SERVICE GUIDE GE Consumer Home Services Training Electronic JP938 JP968 Electric JP340 JP350 JP930 JP960 Electronic Touch Control Electric Manual Control Cooktops ...

Page 2: ...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 and prope...

Page 3: ...ntroduction 2 Installation 3 Specifications and Nomenclature5 5 Warranty Information 6 Cooktop Features and Controls 7 Diagnostics 12 Mechanical Disassembly 18 Component and Connector Locator Views 27 Schematics 30 Parts List 32 Quiz 36 Title ...

Page 4: ... element to fit the size of a metallic pan And the new warming feature keeps sauces and gravies warm or can be used as a normal heating element The controls lockout feature protects against power activation to a heating element during times of unintended usage or when cleaning the cooktop And the convenient kitchen timer can be used with or without operating the heating elements to simplify any ki...

Page 5: ...not interfere with cabinet structure at front 1 3 4 MIN clearance to side wall from cut out 1 1 2 MIN clearance to side wall from cut out 18 MIN to cabinet 1 3 4 to rear wall 13 MAX depth A Cooktop G E F W D Counter Installation Dimensions in inches Required Cooktop Dimensions in inches GEA00791 Counter Cutout Min W D A E F G JP968WC CC BC 36 20 3 8 3 1 4 33 7 8 19 1 8 2 1 2 JP960TC CC BC 36 20 3 ...

Page 6: ...e appliance The branch circuit load for a counter mounted cooktop and not more than two wall mounted ovens all supplied from a single branch circuit and located in the same room shall be computed by adding the name plate ratings on the individual appliances and treating this total as equivalent to one range Wiring Built in power leads are U L approved for con nection to larger gauge household wiri...

Page 7: ...ed under the control panel The letter designating the year repeats every 12 years Example T 1974 T 1986 T 1998 J P 9 6 8 B C Product J GE Cooking Product Configuration P Cooktop Feature Pack Designates features the higher the number the more features Grate Type C Continuous Glass Color B Black glass The serial plate of your cooktop is located on the bottom of the burner box In addition to the mode...

Page 8: ...mitation of incidental or consequential damages This war ranty 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 General Electric Company Louisville KY 40225 Sales slip or cancelled check is required as proof of original p...

Page 9: ...968 36 in Electronic Cooktop JP938 30 in Electronic Cooktop JP930 30 in Electric Cooktop Before replacing the cooktop try using the cooktop cleaning procedure outlined in the Owner s Manual using the cleaning cream and Scotch Brite pad shipped with the product Note When servicing the cooktop care must be taken not to scratch or damage the glass Ceramic Glass Surface These cooktops feature a cerami...

Page 10: ... front element are regulated by the same controls GEA00902 RTD RTD 800 Watt Bridge Element Molded Ceramic Wall 7 1800 Watt Elements Heating Element Systems The Haliant Surface Element consists of a ribbon type resistance wire attached to the support insula tion with molded ceramic fiber walls in a corrosion protected metal dish These circular heating elements come in the three sizes listed below 4...

Page 11: ...large and small surface elements OFF touch the ON OFF pad To turn ON the bridge element set the left front surface element to the desired setting Touch the BRIDGE pad The bridge element will energize to the same level as the left front surface element or touch the ON OFF pad for the left front surface element then touch the BRIDGE pad The left front and bridge elements will both energize to power ...

Page 12: ... 2 beep signal will sound and the light will go out indicating the cooktop is unlocked Locking the cooktop will prevent surface elements from accidentally being energized by children or pets You may lock the cooktop when not in use or before cleaning Kitchen Timer Operate the timer using the pad below the timer display Touch the ON OFF pad then touch the or pad to choose the desired time setting I...

Page 13: ...C JP960TC JP938WC JP930TC JP968CC JP960CC JP938CC JP930CC JP350CC JP968BC JP960BC JP938BC JP930BC JP350BC JP340BC Features 5 Ribbon 1500W 4400W 4400W 4400W 4400W 1200W 5 5 4 4 4 1 Appearance SS SS SS SS SS WW WW WW WW WW WW CC CC CC CC CC WW BB BB BB BB BB BB Frameless 36 36 30 30 30 30 45 44 38 38 38 35 Power Ratings 9 6 9 6 8 1 8 1 7 7 6 4 208V 7 2 7 2 6 1 6 1 5 8 4 8 40 40 40 40 40 30 208V 40 4...

Page 14: ...System 13 Triac Voltage Control 13 Pan Detection 14 Technician Mode 14 Fault Codes F codes 15 Line In Voltage Check 15 Temperature Check in Celsius 15 Frequency Check in Hertz 16 Calibration of the Inductive Pan Sensors 16 Fault Code Behavior Table 17 ...

Page 15: ... Triac Voltage Control A triac fired control replaces the usual rheostat temperature control for each surface element The control receives feedback from the temperature sensor to allow for precise control of the heating element power Digital Control System The control system consists of four circuit boards the touch board which is permanently adhered to the ceramic glass panel that senses the user...

Page 16: ... after 1 minute Pan Size Feature When the pan detection feature is active the pan size feature is also active The pan size feature is designed to automatically recognize the size of a pan placed on the dual heater and energize one or both cooking zones to match the size of the pan The pan size feature is overriden when the DUAL key is pressed Technician Mode To enter the Technician Mode lock the c...

Page 17: ... 9 recorded F codes The cooktop has multiple sensors one for each surface element Some F codes include a sensor number associated with a surface element The illustration below shows the sensor surface ele ment number for both cooktop configurations To clear the F code register enter Technician Mode While the timer display flashes TECH MODE simultaneously press the BRIDGE and WARMER keys The timer ...

Page 18: ...ermanently store the pan detection thresholds in a new logic board that has never been cali brated Calibration is also performed to update the pan detection thresholds due to a physical change in the pan detection circuit wiring or sensor Calibration of the inductive sensors is necessary and must be performed when any of the radiant surface elements with an inductive sensor are replaced or when th...

Page 19: ... 17 Fault Code Behavior Table ...

Page 20: ...nt 19 Switch Replacement 19 HOT SURFACE Light Replacement 20 Burner Replacement 20 Electronic Models 21 Glass and Cooktop Removal from Countertop 21 Touch Board and Cooktop Glass Replacement 22 Display Board Replacement 22 Logic Board Replacement 22 Power Board Replacement 23 Calibration Instructions for the Inductive Sensors 24 Surface Element Replacement 25 ...

Page 21: ...oktop up about 4 in rotate slightly left or right to the best working advantage and set down as shown Lift each end slightly and adjust the wood or cardboard to prevent scratching the countertop 5 Remove all knobs from the cooktop 6 Remove all screws from along the top edge on all 4 sides of the burner box Remove the cooktop glass and place it top side down on a protected surface Broken Glass Repl...

Page 22: ...ight Push in on the second light tab while still pushing the light down to release the light GEA00814 LR Burner Switch LR Burner Switch 4 Remove 4 screws from the switch mounting bracket 2 from each end and remove the red wire from the switch for the left rear burner 5 Note the location and color of the wires in the wire harness disconnect them from the burn ers and remove Note When installing the...

Page 23: ...ainers from below the edge of the countertop 2 Protect the counter with two strips of wood or cardboard as shown below 3 Reach up from inside the cabinet and push upward on the bottom of the burner box enough to shim with protective wood or cardboard under one end Repeat for the other end Caution Screws on the bottom of the burner box can scratch the countertop surface Use care to protect the coun...

Page 24: ...d shall be supplied as a complete assembly Remove and replace the cooktop ceramic glass see previous procedure Display Board Replacement 1 Remove the display board from the damaged piece of cooktop glass 2 Place the display board on the new cooktop glass making sure to connect the 8 pin ribbon cable to the touch board and the wire harness to the display board 3 Prop the glass on the back of the co...

Page 25: ...GEA00823 3 Disconnect the 26 pin ribbon cable from the logic board by pressing down on the latching tabs of the header Tabs Tabs GEA00824 4 Remove the logic board by using needle nose pliers to press in on the tabs of the logic board standoffs and lifting the board Do notremove the logic board standoffs Repeat this proce dure for all 5 board standoffs Caution To avoid delivering an electric shock ...

Page 26: ...fore reaching for the new power board 7 Remove the new power board from the anti static bag and reconnect the 26 pin wire har ness the main power connector and the burner box power connector to their original positions 8 Examine the inside of the cooktop heaters sensors wires and thermal wall for anything that does not look normal 3 Remove 5 screws and the ground screw from the drop box cover and ...

Page 27: ...re fails follow these steps Try calibrating the cooktop again beginning with step 1 from above Identify the sensor s that fails the calibration procedure If multiple sensors fail the calibration procedure replace the logic board If only one sensor fails the calibration procedure replace the corresponding surface element Caution Do not cut the wire ties from the wire harness Care must be taken to e...

Page 28: ...umbers on the bottom of the heater next to the tabs 9 Using a nut driver remove the necessary screws from the outside of the burner box and lift the surface element support bracket to route the sensor wires beneath the bracket 10 Run the connector through the gap between the insulating strip and the thermal wall making a slit in the insulating strip if neces sary 11 Place the connector on the appr...

Page 29: ...Board Display Board Touch Board Assembly Display Board Touch Board Assembly User Interface to Logic Board Wire Harness User Interface to Logic Board Wire Harness 26 Pin Ribbon Connector 26 Pin Ribbon Connector Main Power Connector Main Power Connector Power Board Power Board Ceramic Glass Top Ceramic Glass Top Display Board Display Board Touch Board Touch Board Ceramic Glass Top Ceramic Glass Top ...

Page 30: ...ner Box Pan Sensor Pan Sensor Power Connector Power Connector Temperature Sensor RTD Temperature Sensor RTD Heater Heater Ceramic Glass Top Ceramic Glass Top User Interface to Logic Board Wire Harness User Interface to Logic Board Wire Harness Display Board Display Board Touch Board Touch Board 26 Pin Ribbon Connector 26 Pin Ribbon Connector Main Power Connector Main Power Connector Power Board Po...

Page 31: ...pport Bracket Support Bracket Burner Box Burner Box HOT SURFACE HOT SURFACE Lights HOT SURFACE Lights ON Light ON Light Switch Switch Switch Mounting Bracket Switch Mounting Bracket Thermal Limiter Thermal Limiter Heater Heater GEA00838 ...

Page 32: ...0 L2 9 J121 L2 9 J122 a 8 LF LB LR R T D R T D 1 2 1 2 1 2 R T D 1 2 1 2 R T D 1 2 1 2 RR RF2 RF1 POWER BOARD J103 J110 K107 K106 K105 K102 K101 K 1 0 4 K 1 0 3 CONDUIT 9 PIN POWER CONNECTOR 1 2 3 4 5 6 7 8 9 MAIN BOARD DISPLAY BOARD TOUCH BOARD 26 PIN RIBBON J502 8 PIN RIBBON CR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 PIN CONTROL HEATER CONNECTOR 1 2 3 4 Pin 5 Pin 1 E Inductive Sensor RTD Wire Exa...

Page 33: ... 31 Notes ...

Page 34: ... 32 Parts List ...

Page 35: ...62 WB02K5318 Radiant Heater Bracket 8 63 WB02T10090 Element Support Bracket 2 63 WB02T10091 Element Support Bracket 1 65 WB34T10034 Drop Box Top 1 67 WB02X9502 Radiant Heater Stud 8 80 WB34T10033 Burner Box Bottom Shield 1 82 WB23T10014 Power Board Asm 1 93 WB34T10031 Thermal Barrier Inner 1 93 WB34T10032 Thermal Barrier Outer 1 101 WB35T10047 Burner Box Bottom Insulation 1 200 WB06T10007 Tape 1 2...

Page 36: ... 34 ...

Page 37: ...9 49 80021 Use Care Manual 1 999 WB18T10162 Power Control Harness 1 999 WB18T10163 Heater Control Harness 1 999 WB18T10164 Logic Control Harness 1 999 WB18T10166 Logic Display Harness 1 999 WB18T10165 Main Wire Harness 1 999 WB64X0093 Glass Cleaner 1 999 31 10429 Instruction Install 1 999 WB50T10040 AASM Kit Flush JXFMBB 1 999 31 10034 PM Sheet Mini Manual 1 999 WB06K5036 Razor Blade Scraper 1 ...

Page 38: ......

Page 39: ......