Dan M Lampe , MO September 15, 2014 Appliance: Model KITCHEN AID SUPERBA OVENS The entire display for both ovens went dark but there was still the audible tones After powering the ovens down for one hour and powering back up, the problem persisted. I removed the control panel and looked for anything obvious such as burned connections or components. After checking the capacitor and a few relays, I decided that since most of the components cannot be checked accurately in-circuit, it was easier to replace the entire control panel. Read More... 8 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Pliers, Screwdrivers