I have an electric GE wall double oven (jkp38g0j2bg) which came with the house I bought 2 years ago, so it's probably 25 years old this year too. As of this past weekend, I have two problems, but I think I know the answer to one of them.

1) I have a bright spot on the bottom heating element. I imagine this is a short and a harbinger of a failure in the element and should be replaced. I think this is completely unrelated, but it must be fixed so I mention it with the below, which is my real problem. How do I know what heating element model number to get?

2) When cooking particularly moist things (including some casseroles, but especially when my wife bakes "kale chips"-- kale tossed with olive oil and salt) and you can see the steam coming out of the vent, the electronics misbehave. Sometimes this is as innocuous as the numbers going blank, sometimes it beeps non-stop or intermittently, and twice now the clock has gone bonkers with digits like " ", "P" or "F", or numbers like "8" or "9" in the tens of minutes digit (clearly the state machine got confused and didn't reset after the 5 overflowed from a 59). Is this a control board going bad? Or is there some sort of seal which may have worn out but is supposed to keep condensing air out of the control board? How do I know how to take the oven apart to get to it?

Thanks for any help!