Hi. you have a relay failure . its real common on all digital ovens in general after looking up yours , there are no inside parts made for this oven . this is another problem with all "made in china " appliances THERES JUST NO PARTS! anywhere ! see what your warranty will do , if thats no good, some krups appliances can be sent back for "repair " its not realy repaired just replaced at a reduced cost . i wish you luck