GE truetemp double oven fan runs for an hour after...

Question

To me this has been the biggest piece of junk. We don't use the bottom oven because it doesn't cook evenly. Self clean stopped working after one year in the top oven. Now when I cook anything in the top oven, the fan comes on and stays on for at least an hour after the oven has been turned off. Any solutions other than ripping the thing out of the wall?

This was purchased in Dec. 1999