GE Oven JTP15BW Broil Element on, Bake Element off during baking.

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.

is the bake element getting hot?when you put the oven on bake both the broil and bake elements come on,if just the broil element is getting hot it might take it an hour to heat up.you might just have a bad bake element,if the bake element isn't hidden does is turn red? if not it's not getting hot.

Hello - - If you are referring to the bake element, but the broil element works then you would need to just replace the bake element. If both your bake and broil element does not work, then there might be a problem with the wiring communication. However, if the oven does not bake and/or broil but the cook top works; contact a professional to diagnose the EOC (electronic oven control).

Do you have a volt reader?

Check your bake element. Unually ovens use both bake and broil elements to preheat and just bake element to keep temperature. Your bake element is probably burned out.

does the bake element come on at all?
if so, try the oven out. do a bake @ 350 allow it to pre-heat, and see if once the pre-heat is comlete, id the broil shuts off.
on many ovens at the beginning of the cycle during pre-heat both bake and broil elements are powered.

other than that it may be a control board, or a burnt and crossed wire in the harness.

When the food you're baking is done on top but not on the bottom--or when baking just takes far too long to finish--the bake element may be burned out.

You may get fooled into thinking it's working, because the oven is hot inside. But many electric ovens use the broil element, too, during the preheat and bake cycles. So the food may be getting heated only by the broil element, which causes poor baking results.

If the bake element is burned out, replacing it should solve the problem. Otherwise, you need to further troubleshoot the oven's electrical system to locate the defective wire or component.

GE JKP86BF3BB COMBO MICRO/ELECT OVEN

NO HEAT ON BROIL OR BAKE ELEMENTS

CKD WIRING FROM PANEL OK
CKD TERMINALS AT ELEMENT HAVE 120V ON EACH ELMT
FAN COMES ON
THE ON INDICATOR SHOWS WHEN TMP &START PUSHED
MICROWAVE WORKS FINE
I ORDERED A NEW BAKE ELEMENT TO TRY-NOT HERE YET
STUMPED

Hi Jeff. You should have a wiring diagram with the range. Check for an envelope on the back of the range, inside the back splash, or taped to the inside side wall of the range if you remove the lower drawer. That all being said, first check to see if the start or stop time knobs on the timer have been pushed in (and possibly turned). If the clock runs, it will clear this out within 12 hours, but on these old ranges often times the clock no longer runs. Make sure these knobs are turned until they have "popped" out or you won't get the necessary voltage where you need it. Secondly, when a bake element burns out, it can cause damage to the electrical contacts in the oven selector switch (part number WB22X5122 ) which can be tested with an ohm meter if you can find the electrical diagram. Also, the oven thermostat (part number WB21X5320 ) can be damaged in the same way. Unfortunately, these parts for these old units are not very cheap.
The little bit of heat you are getting in your oven now is most likely only from the 120 volts going to the broiler element when in Bake. During Bake, your bake element should get 240 volts (until thermostat is satisfied). Setting to Broil should give 240 to the broil element.

On these older ovens ther is usually always 120 volts on the elements at all times.
If you check across the element ends with it in bake you should read 240V. If not, there is a problem with the control. With the voltage drop you describe, it sounds like you are losing power on one line of voltage coming to the element.
Post back to let me know what you find out or if you have any questions.