We preheated our Waring DF280 fryer to 375, placed food in baskets and dropped into oil. When we went back a couple of minutes later to check on it, there was a message on the digital display that said "ERR." The food had stopped cooking. We pushed the reset button, unplugged the cord and the heating coil and started the process again from the beginning. We keep getting the ERR message. HELP??

Kitchen Appliances - Others - Waring - DF280 Deep Fryer