I am sorry to hear it went back to the error code. Sometime the heat will keep it going for a long time, sometimes not so much.
The part you need is available below. To replace it, first turn off the breaker. Then, open the lower oven door and at the bottom of each side trim piece, on the inside, is a very small Phillips screw. Remove both of those screws, one from each side. Once removed, grab the trim piece at the bottom and pull out slightly and then it will pull down and off. Do this for each side. Once the trim pieces have been removed, you will now have access to the screws on the lower outside corner of the control panel you will be replacing. You may have to loosen the screws holding the oven in the cabinet so the oven can slide forward about 1/4", too. Then, you can pull the bottom of the panel out a couple inches and it will lift off, allowing access to the internal components. The main control board is mounted to the back of the panel, so you will need to unplug the panel connector and then remove the screws that secure the control to the panel. If you run into problems, please let me know.
The trim pieces are shown as number 2 in the diagram below. There is one on each side.
The control (number 3) is mounted to the back of the panel (number 1).
The part you need is pictured and available below. Control Panel
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