I was installing a new control knob for one of the elements. I wrote down the pin outs with the matching wire color. I turned on the power switch the knob of the broken element , it started to spark and it tripped the Main 40 amp breaker. I took it part again to check for any black marks and didn't any. I put back to together how it was. It didn't blow the Main breaker .the element that was broken works but the dual element does not work. Could I have blown a breaker on the stove or shorted out the element, rendering it useless?