Replacement parts can generally be purchased from the manufacturer, such as Oster or Cuisinart as well as third-party suppliers, including EReplacementParts.com. The majority of repairs and replacement parts needed are due to damaged electrical connections.
If the skillet does not turn on, check the outlet, fuse or breaker by plugging in another device. If the outlet is functioning properly, check the power cord with an ohmmeter. If the resistance reaches infinity, the cord is damaged or the connections are loose. Remove the plate connecting the cord to the skillet and visually inspect the connections. If the connections are good, then the cord should be replaced. Never allow the cord to come in contact with the heated metal on the skillet.