Range was working fine (oven and stovetop) until I tried to use the clean mode. The display looks like it's going to work, but there is a faint 'clattering' noise, the door doesn't lock, and it finally displays an F-9 error code. None of the buttons respond and none of the stovetop dials will move. I tried to reset it by flipping the breaker and leaving the power off for a few minutes, but it goes right back to the same cycle of appearing to start the clean process, and never makes it - only back to the F-9 error (so now I can't use it at all!). This range is at our weekend home and I neglected to get the model number off of it before returning to our regular home. It's a stainless convection range, smooth top, approx. 7-8 years old. Help if you can!