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Oven Removal

The replacement of certain components require
oven removal. (See

Oven Component Access Chart

.)

WARNING:

The oven is heavy and requires two

people to remove it from the installation.

Note:

Sharp edges may be exposed when servicing.

Use caution to avoid injury. Wear Kevlar gloves or
equivalent protection.

To remove the oven:

Disconnect power to the oven.

1.

Remove oven doors and racks. (See

2.

Door

Assembly.

)

Remove the 4 Phillips-head screws (2 on each

3.

side) from the side trims that hold the oven in
place. (There are 8 Phillips-head screws on the
double oven.)

Utilize a table or platform in front of the oven

4.

and pull the oven completely out.

Note:

When reinserting ovens into cabinet opening,

ensure conduit is properly positioned behind ovens.
(See the

Installation Instructions

manual.)

Control Compartment Access

It may be necessary to remove the oven from the
installation to gain access to some components.
(See

Component Access Chart

.)

Note:

The glass touch boards and the control panel

front are one unit and are ordered as an assembly.

To access the control compartment on single or
double ovens:

Open oven door.

1.

Remove the three 1/4-in. hex-head screws that

2.

attach the bottom of the control panel to the
vent trim.

Place a cardboard protector on top of the oven

3.

door and close the door.

Note:

The control panel has keyhole slots at the top

and is held very tight to the side trims.

4. Carefully push the control panel up, then pull out

at the bottom.

5. Place the control panel on a protected oven

door as shown.

Note:

When installing the control panel, make sure

the bottom edge of the control panel sits on top of
the metal air divider and vent trim.

Keyhole Slot

Keyhole Slot

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Содержание Profile PT920

Страница 1: ...GE Appliances General Electric Company Louisville Kentucky 40225 31 9174 30 in Built In Wall Ovens PT920 PT960 Technical Service Guide August 2008 GE Consumer Industrial ...

Страница 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...

Страница 3: ...C Failure Codes 39 Factory Test Mode 37 Introduction 4 Lock Assembly 27 Logic Board 25 Lower Oven Control Compartment Access 20 Meat Probe and Outlet 31 Nomenclature 5 Operational Notes 12 Oven Component Access Chart 15 Oven Components 16 Oven Light Assembly 33 Oven Removal 19 Oven Sensor and Door Switch Test 38 Oven Temperature Sensor 22 Rear Access Panels 21 Relay and Power Boards 25 Sales Mode ...

Страница 4: ...nd consistent results roasting meats faster than a traditional oven Hidden Bake Oven Interior Hides previously exposed bottom element to deliver a clean interior appearance Closed Door Broiling Provides cleaner broiling with a lower wattage heating element Self Clean Oven Conveniently cleans the oven cavity without need of scrubbing Improved Interior Oven Lighting Positions lamps diagonally across...

Страница 5: ...ss Steel BB Black WW White Model Year Designator P T 9 6 0 B M B B Nomenclature Nomenclature The letter designating the year repeats every 12 years Example T 1974 T 1986 T 1998 Model Number Single Wall Oven Glass Color S Integrated Stainless B Integrated Black W Integrated White Serial Number The first two characters of the serial number identify the month and year of manufacture Example AR123456S...

Страница 6: ...tes The screen will show the set temperature When the control signals foods should be placed in the oven For double oven models only to set the second oven select PRESS TO MAKE LOWER OVEN SELECTIONS or PRESS TO MAKE UPPER OVEN SELECTIONS as needed and follow the above steps The set temperature may be changed by touching CHANGE TIME TEMP The settings may be cancelled by touching CANCEL The timer ca...

Страница 7: ...L LOW BROIL OR If your oven is connected to 208 volts rare steaks may be broiled by preheating the broiler and positioning the oven rack one position higher Touch CONVECTION BAKE or CONVECTION ROAST For double oven models only touch UPPER OVEN or LOWER OVEN to select the desired oven Two rack options are available SINGLE RACK Touch for cooking food items on only one rack in convection bake MULTI R...

Страница 8: ...s cover the dough with a cloth Touch OPTIONS Touch PROOF The oven interior light turns on and then will cycle during proofing The proofing feature automatically provides the optimum temperature for the proofing process and therefore does not have a temperature adjustment For double oven models only touch UPPER OVEN or LOWER OVEN to select the desired oven Touch START Set the KITCHEN TIMER for the ...

Страница 9: ...CONVECTION BAKE or CONVECTION ROAST as desired If CONVECTION BAKE was selected touch SINGLE RACK for one rack or MULTI RACK for two or three rack cooking Touch the numbers to set the desired second temperature Touch ENTER Touch the numbers to set the desired length of the second cooking time Touch ENTER Touch PRE HEATED START or COLD START OR UPPER OVEN LOWER OVEN ENTER 0 9 8 7 6 5 4 3 2 1 0 9 8 7...

Страница 10: ...magnetic end of the doorstop onto the upper inside surface of the oven door Close the oven door allowing the door to rest against the doorstop Touch OPTIONS Touch DEHYDRATE For double oven models only touch UPPER OVEN or LOWER OVEN to select the desired oven Enter the temperature max 200 F Touch ENTER Touch START NOTES Store the doorstop in a safe place when not in use Use only the doorstop provid...

Страница 11: ...5 adjusted up to 35 F hotter or 35 F cooler Touch 1 or 1 to increase or decrease the offset temperature in 1 increments When you have made the 6 adjustment touch OK and DONE Use your oven as you would normally Note Other adjustments controlled by OPTIONS SETTINGS include To set the Clock 12 Hour Shut Off Clock Blackout Sabbath Feature Fahrenheit to Celsius Temperature Selection Auto Recipe TM Conv...

Страница 12: ...operations On the double wall oven the oven control will automatically set the oven that has the probe plugged into it In Convection Bake the bake element and the fan operate whenever the oven is preheating On the double wall oven you can use timed baking in both ovens at the same time The Clean cycle can be set for a minimum of 3 hours and a maximum of 5 hours The default setting is 5 hours The 5...

Страница 13: ...ent Oven Door Gasket Meat Probe Outlet Convection Fan Hidden Bake Element Door Lock Oven Temperature Sensor 2 Lights Control Compartment Bottom Double Wall Oven Middle Trim Assembly Shown Removed Note Bake FAD Thermal and Cooling Fan are located behind Vent Tube Door Lock Vent Tube Clean FAD Thermal Relay Board ...

Страница 14: ...ext page Cooling Fan Power Supply Board Door Lock LCD Control Board Door Switch Relay Board Clean FAD Thermal Cooling Fan Convection Fan Bake FAD Thermal Convection Element Capacitor Back of Single Oven All Rear Covers Shown Removed Bake Element Broil Element Thermal Limit Switch ...

Страница 15: ... z z z z Convection Fan Motor z z z z Control Panel Assembly z z n a z Cooling Fans z z z z Door Assembly z z z z Door Switch z z z z Door Hinge Receiver z z z z Lock Assembly z z z z Meat Probe Outlet z z z z Oven Light Assembly z z z z Oven Temperature Sensor z z z z Power Supply Board z z z z Relay Boards z z z z Thermal Switch Limit Thermal Switch z z z z Thermal Switch Bake FAD z z z z Therma...

Страница 16: ...To replace the door With the door at the same angle as the removal 1 position seat the indentation of the hinge arm into the bottom edge of the hinge slot The notch in the hinge arm must be fully seated into the bottom of the slot Firmly grasp both sides of the door at the top 2 Close the door to the door removal position 3 then lift it up and out Oven Components Continued next page Open the door ...

Страница 17: ... the door handle Overtightening the screws can damage the handle Hand tighten the screws and make sure the handle fits snugly to the door panel Do not use electric driver Continued next page To remove the outer door assembly Remove the door 1 Place the inner door assembly gasket side up 2 on a protective surface Remove the four 1 4 in hex head screws from 3 the bottom of the outer door assembly No...

Страница 18: ...ough slots in the top of the door DO NOT INSULATE THIS AIR CHANNEL Arrows on the side of the inner glass assembly indicate the direction in which the inner oven door glass is installed The arrows should be pointing toward the oven cavity Door Gasket The gasket forms a complete seal around the front edge of the oven liner and the inner door panel The door gasket is attached to the inner door panel ...

Страница 19: ...hind ovens See the Installation Instructions manual Control Compartment Access It may be necessary to remove the oven from the installation to gain access to some components See Component Access Chart Note The glass touch boards and the control panel front are one unit and are ordered as an assembly To access the control compartment on single or double ovens Open oven door 1 Remove the three 1 4 i...

Страница 20: ... 4 in hex head screws 5 that attach the cross member to the front of the control compartment Remove the crossmember Screws Middle Trim Top Access Panels Removing the top access panels permits access to the control compartment cooling fan and the bake FAD thermal The oven must be removed to access the 1 4 in hex head screws that attach the top panels See Oven Removal The front top access panel has ...

Страница 21: ...the side trims prior to removing the side access panels The oven must be removed to access the 1 4 in hex head screws that attach the side trims and access panels See Oven Removal Each single wall oven side trim is attached with 5 hex head screws Each double wall oven side trim is attached with 9 hex head screws Each single wall oven side access panel is attached with 14 hex head screws Each doubl...

Страница 22: ...rol Board Testing The broil element will not work if the meat probe is plugged in The element is rated at 2400 watts has an approximate resistance value of 24 Ω and draws approximately 11 amps The broil element is located on the back wall of the oven and can be removed from inside the oven cavity To remove the broil element Disconnect the power from the oven and 1 remove the oven racks Remove the ...

Страница 23: ... top of the oven cavity 4 Remove the vent tube from the oven cavity Convection Fan Blade and Motor The Convection Fan Blade The convection fan blade is located on the back wall of the oven cavity and is removed separately from the convection fan motor To remove the convection fan blade Remove the oven racks 1 Remove the four 1 4 in hex head screws that 2 hold the convection cover to the back wall ...

Страница 24: ...an may cycle on and off and change direction in any of these modes to best distribute hot air in the oven The convection fan shuts off when the door is opened There is a 2 5 μf run capacitor connected across the CW and CCW windings of the convection fan motor This capacitor provides a phase shift for the change in motor direction An open or shorted capacitor will stop the motor The convection fan ...

Страница 25: ...rim Remove the two 1 4 in hex head screws from 3 the relay and power board tray Relay and Power Boards The relay board and the power board in the single and upper ovens are located in the right side of the control compartment and are accessed through the control compartment To remove the relay board single or top oven Access the control compartment See 1 Component Compartment Access Disconnect fro...

Страница 26: ...ead screws one 3 under the relay board that attach the vent trim to the front of the cabinet Remove the trim Pull the tray forward and mark and disconnect 4 all connectors from the relay board Compress the tab on the top of each plastic 5 standoff then remove the board 6 Mark and disconnect all connectors from the relay board and the power board 7 Compress the tab on top of each plastic standoff t...

Страница 27: ...ted in the display Door Locking Unlocking Strip Circuit The cam on the motor performs two functions Positions the lock hook in the door to prevent 1 opening during clean operation Operates the lock switches which signal the 2 control if the door is unlocked or locked and ready for clean operation Note When door is either being locked or unlocked both the lock and unlock switches will be in the ope...

Страница 28: ...embly Remove 2 hex head screws and the lock 5 assembly from the oven Lock Assembly 4 Mark and disconnect connectors from the lock assembly Caution It is possible to reconnect the switch wiring incorrectly to the lock assembly When reconnecting the wiring make sure it is properly connected to the lock assembly before turning the power back on Door Lock Unlocked Position Strip Circuit To remove the ...

Страница 29: ... below 190 F Low Voltage Low Temperature Thermal Switch The bake FAD switch is active only during non self clean unlock switch closed lock switch open operations The bake FAD thermal switch for single ovens or upper double ovens is located under the rear top cover in front of the cooling fan It is wired in series with the unlock motor switch The bake FAD thermal switch for lower double ovens is lo...

Страница 30: ...s panel for 2 the door hinge receiver See Side Access Panels Carefully lift the insulation from the outside of 3 the oven Remove the four T 15 Torx screws 2 on each 4 side that hold each hinge receiver to the oven frame Note Upon reassembly ensure displaced insulation around oven and components is returned to its original position Thermal Switch Vent Tube To remove the bake FAD thermal switch on l...

Страница 31: ...t Bake Element Note The resistance of this component can be tested from the EOC See Control Board Testing The element is rated at 2100 watts has an approximate resistance value of 27 Ω and draws approximately 8 5 amps The bake element is located under the oven floor Bake element terminals are located behind the rear access panels on both the single and double wall ovens To remove a bake element Re...

Страница 32: ...imate resistance values Single or Upper Oven Lower Oven White red to white black 13 Ω 10 Ω Black to white black 18 Ω 21 Ω White red to black 30 7 Ω 31 Ω Access to the single and upper oven cooling fans and the lower oven cooling fan require the oven to be removed To remove the cooling fan in the single and upper oven Remove the oven from the installation See 1 Oven Removal Remove the top access pa...

Страница 33: ...r switch monitors the position of the oven door and provides this information to the EOC The lights come on when the door is opened The oven lights do not come on if the Sabbath Feature is set Each light assembly consists of a removable light cover a light bulb socket and a 40 watt incandescent light bulb To remove an oven light assembly Disconnect power to the oven 1 Open the oven door 2 Remove t...

Страница 34: ...ay contacts Bake and broil units can be on at the same time Bake and broil units operate simultaneously during preheat Broil unit is on approximately 25 percent of the time during the balance of the bake operation There is approximately 1 minute of off time between bake and broil unit operation after preheat In the clean cycle the broil unit is only on during the first 30 minutes or until the oven...

Страница 35: ...Lock Motor J9 Clean FAD Thermal J12 12V Linbus Gnd DC 14V Door Lock Enable K3 DLB K4 Light K6 Convection Fan Direction K9 Lock Motor K10 Cooling Fan K13 Convection Fan K14 Cooling Fan K16 Bake Element K17 Broil Element K18 Convection Element Power Board J13 U12 U12 L1 Supply to Power Board J13 12V 14V and Gnd DC to Relay Boards Continued Next Page ...

Страница 36: ...ock Enable 12 V GND DC Linbus J8 To Glass Touch Boards J9 To Door Lock Common Glass Touch Boards Shown with Logic Board GND J8 J2 J3 J3 J2 J3 J4 J9 J8 J2 Ferrite Wire Harness to J3 on Glass Touch Board 2 J3 Wire Harness to J8 on Logic Board Note The glass touch boards and the control panel front are one unit and are ordered as an assembly Glass Touch Board 2 Glass Touch Board 1 Logic Board Logic B...

Страница 37: ...d all loads can be actuated via the Factory Test Mode LCD screen BAKE BROIL COOLING FAN CONVECTION BAKE LOCK DOOR UNLOCK DOOR SOFTWARE VERSION CANCEL Production Test BAKE BROIL FAVORITE RECIPE CONVECTION BAKE KITCHEN TIMER CONVECTION ROAST SELF CLEAN PROBE SELECT COOK MODE HOME HELP BACK OVEN LIGHT OVEN LIGHT OPTIONS CLEAR OFF PM To exit factory test mode cycle power on the unit BAKE BROIL COOLING...

Страница 38: ...s Ohms PT920 and PT960 Upper Oven Oven Sensor J3 9 to 10 1091 Ω Rm Temp 1654 Ω 350 F 2634 Ω 865 F Door Latched J3 5 to 6 4 to 6 0 Ω open Door Unlatched J3 4 to 6 5 to 6 0 Ω open PT960 Lower Oven Only Oven Sensor J2 9 to 10 1091 Ω Rm Temp 1654 Ω 350 F 2634 Ω 865 F Door Latched J2 4 to 5 3 to 5 0 Ω open Door Unlatched J2 3 to 5 4 to 5 0 Ω open 1 2 3 4 5 6 7 8 9 10 MEAT PROBE 30K 50K Ω ROOM TEMP OVEN...

Страница 39: ...Disconnect power Disconnect sensor harness from control Measure sensor resistance white leads to be 1080 Ω at room temperature with 2 Ω per degree change Look for damaged harness terminals if not a bad sensor F4 Shorted oven sensor under 950 Ω Disconnect power Disconnect sensor harness from control Measure sensor resistance white leads to be 1080 Ω at room temperature with 2 Ω per degree change Se...

Страница 40: ...oard disconnect the orange wire at DLB The resistance should read approximately 27 Ω between the orange wire at DLB and the yellow wire at BAKE See photo Convection Element To test the convection element from the relay board disconnect the orange wire at DLB The resistance should read approximately 22 Ω between the orange wire at DLB and the blue wire at CONV See photo Broil Element To test the br...

Страница 41: ...ard disconnect the wire harness at J8 The resistance should read approximately 168 Ω at room temperature between the red and the blue wires at pin 7 and pin 8 on J8 See photo Sensor To test the sensor from the logic board disconnect the wire harnesses at J2 for single upper oven and J3 for lower oven The resistance should read approximately 1080 Ω at room temperature between the 2 white wires at p...

Страница 42: ...RNING 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 PT920 and PT960 Wiring Diagram ...

Страница 43: ... 43 Continued Next Page Schematic Logic Board ...

Страница 44: ... 44 Continued Next Page Schematic Relay Board ...

Страница 45: ... 45 Continued Next Page Wiring Diagram Upper or Single Oven ...

Страница 46: ... 46 Wiring Diagram Lower Oven ...

Страница 47: ...ot available you may be responsible for a trip charge or you may be required to bring the product to an Authorized GE Service location for service In Alaska the warranty 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 righ...

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