GE model JKP28BOF3BB. Bake button for upper oven isn't working. Replaced thermo sensor & control board already with new ones. No change in problem with upper oven baking & I have no fault codes appearing on display. All other buttons & controls work fine. Upper oven can broil, just not bake. Lower oven is all good.

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It sounds like you have a bad temperature sensor. Some can be calibrated, but not by a hundred degrees.

https://www.google.com/search?q=ge+jb250df1ww+calibrate+oven+temperature

If your built-in electric oven is getting to temperature and then quitting during a bake cycle, and the upper heating element is not working during the bake cycle but works on the broil setting, it is possible that the problem is with the bake element. Here are some troubleshooting steps you can take:

1. Check the bake element: The bake element is the heating element located at the bottom of the oven. To check if the bake element is working properly, turn on the oven and set it to bake mode. Open the oven door and look at the bake element. It should be glowing red. If it is not, then the bake element is likely faulty and needs to be replaced.
2. Check the oven temperature sensor: The oven temperature sensor is a small probe that is located inside the oven. Its job is to monitor the temperature inside the oven and communicate that information to the oven's control board. If the sensor is faulty, it may cause the oven to shut off prematurely. You can test the sensor with a multimeter to see if it is working properly. If it is not, then it needs to be replaced.
3. Check the oven control board: If both the bake element and the oven temperature sensor are working properly, then the problem may be with the oven's control board. The control board is responsible for controlling the oven's heating elements and other functions. If it is faulty, it may be shutting off the oven prematurely. In this case, the control board will need to be replaced.

It is recommended to hire a qualified technician to perform these tests and replace any faulty parts to avoid any risks of electrical shock or damage to the oven.

Most double wall ovens are technically two separate oven boxes. The lower oven box has its bake, boil elements, high limit thermostat and ofcourse its own oven sensor. If the lower oven box boil is working good and less heat on bake feature may suggest that the bake element is burned out and only getting preheated with boil element. Just a suggestion here

Many GE oven control boards have a relay for the common of the broil and bake elements. This relay is notorious for being the culprit. the electronic control board will need to be replaced. You could check with corecentricsolutions.com to see if the control can be rebuilt. It is much cheaper but you will have to send the board to them for repair.

It is possible that there is a bad relay in the control board. This will shut off the power to your burner elements. The control board has a relay for the bake and broil element and one for the common for both. This is usually the one that goes bad. Unfortunately the board will need to be replaced or repaired. The control board will show temperature rise from the sensor but generally it doesn't show the cool down temp. This again is normal from my experience.

Remove the bake element and use a meter set for continuity to check the element. No reading is a bad element.

Make sure you hit the reset switch first... on top of the lower over... behind the panel...they trip easy and "kill" the oven.

HI, You will need to check the oven sensor wires that link the actual sensor to the main control board. Make sure that the contacts are connected properly, and not loose, or corroded. If all the wiring checks out, test the sensor for the correct resistance readings.(you will need a multimeter for this test)

The most common oven sensor should be approximately, 1100 ohms when at room temperature. The others may be close to as follows:

100°F - 1143 ohms
200°F - 1350 ohms
300°F - 1553 ohms
350°F - 1654 ohms
400°F - 1753 ohms
500°F - 1949 ohms

If the sensor test is adequate, and the wiring is Ok at the control, this will lead to a failed control board. replace the control in this case.

F2- Failed Oven temp sensor, or control board.

Concerning the glow ignitior.

When the bake igniter becomes weak or burns out, your oven will not bake. The bake igniter is usually mounted on the oven burner. It's about 1 inch by 4-8 inches (depending on the model), and comes in round or flat styles. If you don't see the igniter glow at all, it's probably burned out. Replace the igniter if found defective. Note: one of the exceptions could be that your oven is set to automatic mode instead of manual. If this is the case, set your oven to manual mode and check again.

If the bake igniter glows red and not bright yellow or white, it is probably because it is too weak. When this happens, the safety valve will not let the gas out into the oven burner. A weak igniter must be replaced.

my kenmore model number 911-47699100 oven doesn't work. Everything except the oven and broil works--cleaning, all timers, start button, etc. All that happens when you push start is about every 30 seconds, two relays can be heard making and breaking kind of like a click then immediately a clack. No error codes appear. Replaced sensor but that didn't work. Any help would be appreciated.

Stove will not turn offCHECK

Temperature Control Thermostat

If the oven won't turn off the oven thermostat is often the cause of the problem. The electrical contacts inside the oven thermostat can weld themselves together and then the oven won't turn off. If this happens, turn off power to the entire appliance at the household circuit breaker or fuse. The oven thermostat usually cannot be tested and must be replaced if defective.

Oven Control Board

The oven control board has a set of relays that turn on and off power to the bake and broil circuits according to the customer settings and sensor input. If the oven won't turn off it could be that one of the relays on the oven control board is shorted closed, providing voltage to the heating circuit. It can be dangerous if the oven won't turn off. Don't leave the oven unattended without turning off power to the oven.

Relay board:
Some ovens are equipped with a relay board. This circuit board has several relays which control the switching of electrical current to the oven heat source. If the oven won't turn off it may be that one or more of the relays on the relay board have failed. If this happens replace the relay board. The relays on the board are not sold separately.ALSO CHECK THE BAKE AND BROIL ELEMENT.

: I offer free advice bcuz God is so good!