Thanks, Dan.
I'm well aware of what people say about assume

I personally see no harm in making assumptions in the absence of facts as long as one doesn't actually act upon them without doing some research first.
When I said control board above, I meant relay board. I don't know where I got the term control board from. Basically I just went through the parts listed on partselect.com and looked for something like a fuse. I found nothing but I was familiar with the relay board as I had a problem with our oven a couple of years back (lose connection on the back - it was knocked loose when we had a granite backsplash installed).
We have no other problems with the oven / range that we know about. We don't use all the features so there could be something else wrong that we just don't know about but that harldy matters if we're not using it.
Can you give me an idea of how easy it is to install a relay board? I know that "easy" is relative to experience, etc. but if you can. $200 on a relay board is one thing. $400 for the part and to have it installed is quite another. The lady I spoke with at MayTag couldn't give me a quote without me speaking to the service department which I wasn't ready to do this morning.
Thanks, Max