Whirlpool oven F3E2

My range starting coming up with the F3E2 error code. I looked it up and replaced the sensor. After replacing the sensor, I’m still getting the same error message. Could this mean the control board needs replaced? Is this something I can do myself? Should I pay for a repair technician? Or is this going to be type of repair that would warrant a new oven?

Thanks,
Erin