Nancy H Boca Raton , FL January 10, 2016 Dishwasher not heating stopped and light blinking 7 times Replaced the heating element and controller. Should have worn gloves as the underside of back has sharp metal parts. Got sliced while screwing on the nuts to the new heating element. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes