GE Consumer & Industrial Technical Service Guide September 2008 GE Profile Wall Oven PT925 31-9176 GE Appliances General Electric Company Louisville, Kentucky 40225
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 it assume any liability in connection with its use. WARNING To avoid personal injury, disconnect power before servicing this product .
Table of Contents Bake Element ...................................................................................................................................................................... 36 Broil Element ....................................................................................................................................................................... 35 Component Locator Views ......................................................................................................
Introduction The new 30-in. wall ovens have superior style and performance. These ovens feature electronic controls that utilize the precision of modern digital technology.
Nomenclature Model Number P T 9 2 5 B R B B GE Cooking Product P = Profile Product Color SS = Stainless Steel BB = Black WW = White Configuration T = 30-in. Wall Oven Model Year Designator Glass Color S = Integrated Stainless B = Integrated Black W = Integrated White Feature Pack Designates features–the higher the number, the more features. Serial Number The first two characters of the serial number identify the month and year of manufacture.
Control Features Features and appearance may vary. BAKE Pad COOK TIME Pad Touch to select the bake function. Touch to select the broil function. Touch this pad and then touch the number pads to set the amount of time you want your food to cook. The oven will shut off when the cooking time has run out. PIZZA Pad Display BROIL HI/LO Pad Touch to select the Pizza function. OVEN LIGHT Pad Touch to turn the oven light on or off. SELF CLEAN HI/LO Pad Touch to select self-cleaning function.
Using the Upper and Lower Ovens How to Set the Upper Oven for Baking 1. Touch the BAKE pad. 2. Touch the number pads to set the desired temperature. 3. Touch the START pad. 4. Check if food is done at minimum time of the recipe. Cook longer if necessary. 5. Touch the CLEAR/OFF pad when cooking is complete. _________________________________________________________________________________________ How to Set the Lower Oven for Baking or Roasting 1. Touch the BAKE pad. 2.
How to Set an Immediate Start and Automatic Stop The oven will turn on immediately and cook for a selected length of time. At the end of the cooking time, the oven will turn off automatically. 1. Touch the BAKE pad. 2. Touch the number pads to set the desired oven temperature. 3. Touch the COOK TIME pad. Note: If the recipe requires preheating, you may need to add time to the cooking time. 4. Touch the number pads to set the desired length of cooking time. The minimum cooking time you can set is 1 minute.
How to Set a Delayed Start and Automatic Stop The oven will turn on at the time of day you set, cook for a specific length of time, and then turn off automatically. Make sure the clock shows the correct time of day. 1. Touch the BAKE pad. 2. Touch the number pads to set the desired oven temperature. 3. Touch the COOK TIME pad. Note: If the recipe requires preheating, you may need to add time to the cooking time. 4. Touch the number pads to set the desired length of cooking time.
Using the Probe on the Lower Convection Oven How to Set the Lower Oven for Baking/Roasting When Using the Probe 1. Insert the probe fully into the food. 2. Plug the probe into the outlet in the oven. Make sure it’s pushed all the way in. Close the oven door. Make sure the probe cable is not touching the broil element. 3. Touch the PROBE pad. Display will show “Set Probe Temperature.” 4. Touch the number pads to set the desired internal food or meat temperature.
Using the Clock, Kitchen Timer, and Control Lock To Set the Clock The clock must be set to the correct time of day for the automatic oven timing functions to work properly. The time of day cannot be changed during a timed baking or self-cleaning cycle. 1. Touch the CLOCK pad. 2. Touch the number pads. 3. Touch the START pad. _________________________________________________________________________________________ To Set the Kitchen Timer 1. Touch the TIMER pad. 2.
Control Lock Your control will allow you to lock out the touch pads so they cannot be activated when touched. To lock/unlock the controls: 1. Touch and hold the 9 and 0 pads for 3 seconds. The oven display will show “Oven controls locked” for several seconds, then “Locked.” 2. To unlock the control, touch and hold the 9 and 0 pads for 3 seconds. Note: The CONTROL LOCK mode affects all touch pads. No touch pads will work when this feature is activated.
Using the Convection Oven Convection Fan Operation 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. As a result, foods are evenly cooked and browned ― often in less time than with convection heat. Note: To maximize cooking evenness, the fan is designed to rotate in both directions, with a pause in between. This is normal. The convection fan shuts off when the oven door is opened.
How to Set the Lower Oven for Convection Baking or Roasting OR 1. Touch the CONVECTION BAKE pad and then the 2 pad for multirack convection baking. This mode is used for cooking food items on more than one rack (i.e., 2, 3, or more racks) at the same time in convection bake. See the Multi-Rack Convection Baking section for more information. Touch the CONVECTION BAKE pad and then the 1 pad for one-rack convection baking. This mode is used for cooking food items on only one rack in convection bake.
Note: The maximum internal temperature that you can set is 200°F. 7. Touch the START pad. The display will flash "PROBE", and the oven control will signal if the probe is inserted into the outlet and you have not set a probe temperature and pressed the START pad. When the oven starts to heat, the word "LO" will be in the display. After the internal temperature of the meat reaches 100°F, the changing internal temperature will be shown in the display.
5. Touch the START pad. The oven will turn on, and the display will show the cooking time countdown and the changing temperature starting at 100°F. (The temperature display will start to change once the oven temperature reaches 100°F.) When the oven reaches the temperature you set, 3 beeps will sound. Note: If the Auto Recipe™ Conversion Feature is on, it will automatically reduce the set regular baking temperature by 25°F to the appropriate convection temperature in convection bake mode.
7. Touch the START pad. Note: • An attention tone will sound if you are using timed baking or roasting and do not touch the START pad. • If you would like to check the times you have set, touch the DELAY START pad to check the start time you have set, or touch the COOK TIME pad to check the length of cooking time you have set. When the oven turns on at the time of day you set, the display will show the cooking time countdown and the changing temperature starting at 100°F.
How to Set the Upper Oven For Pizza Adjust rack position for type of pizza tray being used. 1. Touch the PIZZA pad. 2. Touch the number pads to select 1 for fresh or 2 for frozen pizza. 3. Touch the number pads to set the baking temperature. 4. Touch the START pad. _________________________________________________________________________________________ How to Set the Lower and Upper Ovens for Warming OR The WARM feature keeps cooked foods hot. This feature is not designed to reheat cold food.
Using the Self-Cleaning Upper and Lower Ovens How to Set the Upper/Lower Oven for Cleaning The oven doors must be closed and all controls set correctly for the cycle to work properly. 1. Touch the SELF CLEAN HI/LO pad once for a 5-hour clean time or twice for a 3-hour clean time. A 3-hour self-clean time is recommended for use when cleaning small, contained spills. A self-clean time of 5 hours is recommended for a dirtier oven. 2.
4. Using the number pads, enter the time of day you want the clean cycle to start. 5. Touch the START pad. The upper and lower oven doors lock automatically. The display will show the start time. It will not be possible to open the oven doors until the temperature drops below the lock temperature and LOCKED goes off in the control display. When LOCKED goes off, you will be able to open the doors.
Fahrenheit or Celsius Temperature Selection + + Your oven control is set to use the Fahrenheit temperature selections, but you may change this to use the Celsius selections. 1. Touch the upper oven BROIL HI/LO and BAKE pads at the same time until the display shows "SF". 2. Touch the COOK TIME and BROIL HI/LO pads at the same time. The display will show "F" (Fahrenheit). 3. Touch the COOK TIME and BROIL HI/LO pads again at the same time. The display will show "C" (Celsius). 4. Touch the START pad.
12-Hour, 24-Hour or Clock Blackout + Your control is set to use a 12-hour clock. If you would prefer to have a 24-hour military time clock or black out the clock display, follow the steps below. 1. Touch the upper oven BROIL HI/LO and BAKE pads at the same time until the display shows "SF". 2. Touch the CLOCK pad once. The display will show "12 hr". If this is the choice you want, touch the START pad. Touch the CLOCK pad again to change to the 24-hour military time clock. The display will show "24 hr".
Using the Sabbath Feature (lower oven only) (Designed for use on the Jewish Sabbath and Holidays) The Sabbath feature can be used for baking only. It cannot be used for convection, broiling, self-cleaning, or delay start cooking. + How to Set for Regular Baking Make sure the clock shows the correct time of day and both ovens are off. 1. On the upper oven, touch and hold both the BROIL HI/LO pad and the BAKE pad, at the same time, until the display shows "SF".
6. Touch the lower oven START pad. 7. Touch the lower oven BAKE pad. No signal will be given. 8. Using the number pads, enter the desired temperature. No signal or temperature will be given. 9. Touch the lower oven START pad. 10. After a random delay period of approximately 30 seconds to 1 minute, "] [" will appear in the display indicating that the oven is baking. If "] [" does not appear in the display, start again at Step 7.
Component Locator Views Single Double Wall Oven (Profile shown) Door Lock Broil Element Light Oven Temperature Sensor Ribbon Cable Meat Probe Outlet Convection Fan Bake Element Upper Oven Door Control System (Door shown with inner door assembly removed) Display/Logic Board Slider Assembly – 25 – (Continued next page)
Control Compartment Back of Oven (Main Rear Panel Shown Removed) Broil Element Lock Out Relay Lower Oven Relay Board Thermal Cut Out Upper Oven Relay Board Thermal Cut Out Convection Element Convection Fan Sail Switch Bake Element Cooling Fan – 26 – (Continued next page)
Oven Component Access Chart WARNING: • The wall oven is heavy and requires two people to remove it from the installation. Care should be taken when removing and installing. • Sharp edges may be exposed when servicing. Use caution to avoid injury. Wear Kevlar gloves or equivalent protection.
Oven Components Door Assemblies Pull down to access Upper Oven The upper door contains many of the electronics and controls for the oven. Lower Oven Snap engages with door frame Caution: The doors are heavy. Use the correct lifting procedure. Do not lift the doors by the handles. To remove the lower door: 1. Open the door fully. Slider Assembly 2. Push the hinge locks down toward the door frame, to the unlocked position. (This may require a flat-blade screwdriver to start the hinge locks moving.) 3.
7. On both sides of the door, press down on the release buttons on each hinge. To remove the lower outer door assembly: 1. Remove the lower door. (See Door Assemblies.) Door Frame 2. Place the inner door assembly, gasket side up, on a protective surface. 3. Remove the four T15 Torx screws from the bottom of the outer door assembly. Release buttons 8. Lift the door up until it is clear of the hinge. To replace the door: 1. Firmly grasp both sides of the door at the top. 2.
To replace the lower inner door assembly: To remove the upper outer door assembly: 1. Remove the outer door assembly. (See Door Assemblies.) 1. Remove the upper door. (See Door Assemblies.) 2. Remove the four T15 Torx screws (2 on each side) that attach each door hinge to the inner door. Carefully turn the door over and remove both door hinges. 2. Place the inner door assembly, gasket side up, on a protective surface. 3. Remove the two T15 Torx screws from the bottom of the outer door assembly. 4.
To replace the upper inner door assembly: Assembly Notes 1. Remove the upper door assembly. (See Door Assemblies.) When assembling, make sure the hinges are parallel to each other and perpendicular to the door liner. If not, the hinge may bind on the receiving channel of the door. If the new hinge is not in the cocked and locked position after installing, place the bottom of the door against a firm, protected surface and push the hinge arm down to the cocked position.
Door Shown with Inner Door Assembly Removed 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. To remove the oven: Outer Door Assembly 1. Remove the 2 Phillips-head screws (1 on each side) that hold the oven in place. 3. Remove the three 1/4-in. hex-head screws from the plastic cover that protects the display/logic boards. 4.
9. To access the slider board assembly, remove the 3/8-in. nut securing the insulating cover. Side Access Panels There are two side panels on each side of the oven. To remove the side access panels: 1. Remove the oven. (See Oven Removal.) 2. On each side of the oven, remove the four 1/4in. hex-head screws that hold the side trim in place. 10. To remove the board from the slider board assembly, press the two tabs securing the board to the slider and lift the board from the assembly.
Rear Access Panels Top Access Panels There are two rear access panels: the main rear access panel and the secondary rear access panel. To remove many of the oven components, it is necessary to remove one or both of the rear access panels. To remove the top access panels: 1. Remove the oven. (See Oven Removal.) 2. Remove the four 1/4-in. hex-head screws that hold the top trim in place. To remove the rear access panels: 1. Remove the oven. (See Oven Removal.) 2.
5. Remove the thirteen 1/4-in. hex-head screws from the top of the heat shield. 4. Carefully pull the sensor and sensor wiring harness from the oven liner. Note: When reinstalling the sensor, use a small flatbladed screwdriver to push and guide the sensor wire harness into the oven liner. 1 of 13 6. Lift up the top heat shield. Broil Element Oven Temperature Sensor • 1080 Ω at room temperature The broil element will not work if the temperature probe is plugged in.
4. Remove the three 1/4-in. hex-head screws that attach the broiler element to the oven cavity. 5. Carefully pull out the sensor approximately 2 inches from the broiler element bracket. 6. Remove the four 1/4-in. hex-head screws that attach the broil element to the top of the oven. 3. Remove the two 1/4-in hex-head screws that hold the bake element to the back of the oven. 4. Carefully pull the bake element out through the front of the oven.
Convection Bake Element Convection Fan Motor The inner convection element is rated at 655 watts and the outer convection element is rated at 645 watts. The convection fan motor is located on the back wall of the oven cavity. The convection bake element is located on the back wall of the oven. To remove the convection bake element: The convection fan will turn on (after a short delay). The fan may cycle on and off, and change direction, to best distribute hot air in the oven.
Relay Boards Lock Assembly The relay boards can be accessed by removing the main rear access panel. The top relay board controls the lower oven, and the bottom relay board controls the top oven. The motorized door lock assembly is located above the oven and comes as a complete assembly. Door Locking/Unlocking Strip Circuit The lower oven relay board contains the power supply module, which provides power to the rest of the control system.
Strip Circuit Thermal Cut Outs When either of the 2 thermal cut outs are open, L2 is cut off from the oven. J16 UNLOCKED 5 4 3 2 1 The thermal cut outs are rated at: • Upper oven TCO = 177°C/350°F • Lower oven TCO = 150°C/302°F J17-Pin9 To remove the lock assembly: Upper Oven Thermal Cut Out 1. Remove the main rear access panel. (See Rear Access Panels.) 2. Remove the two T15 Torx screws from the front of the oven that secure the lock assembly in place. Lower Oven Thermal Cut Out 3.
Micro Switch Lock Out Relay The L2 DLB lockout relay opens the L2 side of the line to the upper oven heating elements if the upper oven door is opened. Sail To remove the lock out relay: Airflow from the Cooling Fan Pulls the Sail Closed 1. Remove the main rear access panel. (See Rear Access Panels.) Cooling Fan 2. Mark and disconnect the wiring to the lock out relay. 3. Remove the two 1/4-in. hex-head screws that attach the lock out relay to the oven frame. To remove the sail switch: 1.
Cooling Fan Ribbon Cable Assembly The cooling fan is located in a recess in the back of the oven. It is necessary to remove the oven from the installation to access the cooling fan. To remove the ribbon cable assembly: The fan will begin to operate when the oven is in any cooking mode. The fan may continue to operate even after the oven is turned off. 2. Release the ribbon cable assembly from the door. (See Door Assemblies.) 1. Open or remove the lower door. To remove the cooling fan: 3.
Door Hinge Receivers To remove the door hinge receivers: 1. Remove the side access panels. (See Side Access Panels.) 3. Pull the outlet and wiring down from the oven wall. Note: When replacing the meat probe outlet, cut the probe wires and splice the new probe using approved heat-resistant connectors. 2. Carefully lift the insulation from the outside of the oven. 3. Remove the two T20 Torx screws that hold each hinge receiver to the oven frame. Cut Here Cut Here 4.
3. Disconnect the light assembly wire harness. 2. Using gloves or a dry cloth, remove the bulb by pulling straight out. Socket Receptacle Disconnect 3. Open the oven door and remove the two 1/4-in. hex-head screws that attach the light housing to the oven liner. Bulb Tab Glass cover To replace the oven light bulb: 1. Use a new 130-volt halogen bulb, not to exceed 50 watts. 2. Using gloves or a dry cloth, remove the bulb from its packaging. Do not touch the bulb with bare fingers. 3.
Smoke Eliminators To remove the upper oven smoke eliminator: 1. Remove both rear access panels. (See Rear Access Panels.) 2. Remove the top access panels. (See Top Access Panels.) Note: To access the lower oven smoke eliminator, the two ovens must be separated. To separate the upper and lower ovens, it is necessary to remove all 4 side access panels and remove the 2 metal brackets (1 on each side) at the front of the unit that secure the two ovens together.
Electronic Oven Control Oven Circuits L2 L2 Relay* L1 Relay* UPPER OVEN BAKE & SELF CLEAN L1 UPPER OVEN BROIL K14 DLB K14 DLB BAKE INNER BROIL K7 K3 INNER BROIL K3 ON/OFF N SPEED HIGH OUTER BROIL K5 K8 ON/OFF LOW K4 M COOLING FAN N SPEED HIGH K5 LOW K4 M COOLING FAN L1 L2 LOWER OVEN BROIL L1 L2 LOWER OVEN SELF CLEAN K14 DLB K14 DLB BAKE INNER BROIL K7 K3 INNER BROIL OUTER BROIL K3 K8 OUTER BROIL ON/OFF N SPEED K8 HIGH K5 LOW K4 M ON/OFF COOLING FAN N SP
Relay Boards Note: There is one relay board for each oven.
Electronic Oven Control J1 J5 J1 Wire Harness to Interface Board J5 Wire Harness to Interface Board Electronic Oven Control (Shown attached to Glass Touch Interface) J1 J5 J1 Wire Harness to Interface Board J5 Wire Harness to Interface Board – 47 –
Diagnostics and Service Information Control Voltage WARNING: Components are electrically HOT on control when voltage is connected to oven. To prevent electrical shock, use extreme caution when diagnosing oven with outer covers removed and power on. Note: Mode and temperature selection is necessary for operation of relay contacts. This model incorporates Double Line Break, meaning there is no voltage on the elements when the control is in standby.
Wires on J7 (below small relays) Brown to White Blue to J11 (Lwr oven relay board only) Black jumper to J11 Red to J11 (Lwr oven relay board only) Violet with white to J11 Black to J11 White with Black to J11 (Upr oven relay board only) White with Red to J11 (Upr oven relay board only) 0 ohms when oven light is on 120V when convection fan turns CCW 120V when convection fan is on 120V when convection fan turns CW 120V when broil element is on 120V when oven door latch is activated 120V when cooling fan is i
Service Mode The oven control has a service mode that can be utilized by the service technician in order to test critical components and to access error codes. This service mode will help the service technician to quickly identify failed or improperly operating oven components. To enter the service mode: To exit the service mode: 1. Press and hold the Upper BAKE pad and the BROIL pad until “SF” appears in the display. 2. Then press and hold the 1 and 5 pads until “Product TEST” appears in the display.
Using the Ribbon Cable for Troubleshooting The ribbon cable allows the technician to inspect several key signals without removing the wall oven from the cabinet. To access the ribbon cable, remove the ribbon cable from the upper oven door as described in a previous section. The plastic housing at the end of the ribbon cable is marked with a 1 and 14. These marks identify the position of the signals within the ribbon cable.
Problem Possible Causes Plunger switch What To Do If the cavity lights are always on, check the plunger switch related to the bad cavity. • Test the functions in Service Mode.
Convection Fan Troubleshooting Problem Fan motor buzzes No fan operation Fan loud Possible Causes Open capacitor Open winding as indicated by ohm check red to black and blue to black (approx. 60 ohms each) Check voltage CCW to N when fan is CCW - should read 120VAC in Convection Bake.
General Troubleshooting Problem Oven light does not work Oven will not work Food does not bake or roast properly Food does not broil properly Oven temperature too hot or too cold Clock and timer do not work Oven will not selfclean Possible Causes Light bulb is loose A fuse in the home may be blown or the circuit breaker is tripped Oven controls improperly set Oven is too hot Oven controls improperly set Rack position is incorrect or the rack is not level Incorrect cookware or cookware of improper size
Problem Possible Causes What To Do This is the sound of the metal heating and "Crackling" or cooling during both the This is normal. "popping" sound cooking and cleaning functions Excessive smoking Touch the CLEAR/OFF pad. Open the windows to rid the during a clean Excessive soil room of smoke. Wait until "LOCKED" goes off. Wipe up the cycle excess soil, and reset the clean cycle. Oven door will not open after a clean Oven too hot Allow the oven to cool below locking temperature.
Problem Possible Causes Power outage, clock flashes Power outage or surge When using the ovens, it is normal to see steam coming out of the oven vents.
Error Codes Access the ERC failure codes by pressing the UPPER START pad and the CLOCK pad for 3 seconds. To clear the fault codes, press the UPPER COOK TIME pad and the UPPER DELAY START pad for 3 seconds. The oven may stop operating but not immediately give and F code on the display. FAILURE CODE MEANING CAUSE/CORRECTION F0 Glass touch key pad failure Replace glass touch key pad.
Schematics and Wiring Diagrams 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.
14 1 2 1 2 BK BK 1 1 J5 BK GY+W W 3 JAMB SWITCH (LWR DOOR SENSE) 8 RIBBON CABLE 1 2 3 1 2 3 BK BK BU+O BK R+O W+BK W+R O+BK W W Y+W BK+W R 5 8 4 7 GY BR BR 2 1 2 2 1 8 9 W W W GY LWR OVEN SENSOR LWR OVEN LIGHT LIMIT SWITCH 5 6 9 6 3 2 7 8 9 9 8 7 3 4 5 1 6 1 W 2 6 3 3 5 2 1 2 2 2 1 1 2 1 LWR OVEN LIGHT BR BK TO CONDUIT 2 W GY 7 4 1 R R BU+O BK R+O W+BK W+R O R W W Y+W BK+W R R R 2 1 BR+W R+BU R R 2 1 1 1 2 2 R
WIRING DIAGRAM - LOW VOLTAGE CIRCUITS Wiring Diagram, Low Voltage Circuits – 60 – (Continued Next Page)
WIRING DIAGRAM - LOW VOLTAGE WIRING HARNESS Wiring Diagram, Low Voltage Wiring Harness – 61 –
Warranty All warranty service provided by our Factory Service Centers, or an authorized Customer Care® technician. To schedule service, on-line, visit us at ge.com, or call 800.GE.CARES (800.432.2737). Please have serial number and model number available when calling for service. For The Period Of: GE Will Replace: One Year From the date of the original purchase Any part of the oven which fails due to a defect in materials or workmanship.
