I was going to post new info on an [url=https://www.doityourself.com/forum/gas-kitchen-appliances-dryers-bbqs/318436-ge-oven-does-not-maintain-temperature.html#post1232118]old thread[/url] but the system recommended opening a new thread. I have a GE JGBP29SEK3SS (which is also likely a Kenmore model). It was not maintaining temperature. It would preheat to the correct temperature then drop over time. While it dropped you could see the element igniting and turning off within a few seconds. My assumption is than a defect in the electronics was not allowing the gas to stay lit long enough to maintain temperature. I replaced the temperature sensor because it is cheap and easy to get to. The behavior did not change. At that point I became discouraged because the old post said the next part to try is the electronic control board which the poster said costs $250. In fact, Amazon sells the "WB27K10354 Oven Control Board" for $60. The only tricky things about replacing the board are 1) carefully separating the front label plate from the old control board and 2) making sure you reattach the wires to the correct tabs since the locations have moved slightly on the replacement board. Fortunately the tabs are well-labeled on both boards. All is accessible by removing four hex-head sheet metal screws on the back. I ended up using a black sharpie to black out the two places where the black vinyl separated from the control board label plate. If I was doing it again I'd also buy a new label plate. After replacing the control board the actual temperature was off by 20 degrees but fortunately the board has TrueTemp which allows you to program in an offset (Push Bake & Broil for 5 seconds ...)

Hello Is The LED display usually the first to go bad or is it most likely the PCB hook into with the display? Range control panel does not work. It lights up and says various different things like cleaning oven or other when pressing oven broil or bake. None work. The manual give a way to check codes by pressing clock-1,2,3,4-Star set-CL0ck and 1 ect. But this does not work or give any codes. I bought the LED display thinking it may be that. But could be the sub PCB that connects to the display. I though they came as a unit but they do not. Note that when I asked sears for the image of the PCB board they sent the link where the PCB board (maybe others) can be bought for 35$ VS the like $115 that sears wanted. here is the link to buy some PCB boards at less expensive. Of course, the first choice to buy elec parts and boards is repairclinic.com who is the only one of that I know of that accepts returns on elec for about any reason, Even after you install. Oh yes, i did check all ribbon cables to see if loose. [url]http://www.gdapstore.xyz/microwave-parts-accessories-c-33_741_742/samsung-microwave-assy-pcb-eeprom-de9403610a-p-4474.htm[/url] Samsung model NE58K9430SS/AA