Jenn Air oven - F1 fault

I have a Jenn Air wall oven (W131W) that recently has been often displaying the F1 fault code (it also keeps beeping every time the fault code is displayed - usually during the early am hrs). I went through the posted procedure for isolating the problem (ERC or touchpad): I disconnected the ribbon cable, powered up, and there was no F1 code or beeping. Accordingly, the problem presumably is with the touchpad (I also checked the temperature sensor, and its resistance is within the specs ~1K ohms at room temperature). However, when looking for a replacement part it seems to me that the ERC, touchpad, and clock come in one integrated package (part #

Does anyone know if I can find the touchpad only? What is the part number? Any help is appreciated. I must say for a 7-year old oven the $240 part is annoyingly expensive.

Thanks Loukas