I have aGE Profile, four burner, electrical iognition, gas cooktop and only tow burners light (gas flows and I can match light the two inoperative burners, but no electricl spark). Yesterday I cleaned the range, and put the brner knobs in the dishwaser. After cleaning I put the knobs back on (I assume they must have still had water in the cavities)and suddenly I had spark at two burners with the control off, I tried turning all burners on and they worked with spark ignition. I cut the power, took a blow dryer and dried all of the conrol area, turned power back on and now I am back tow having only the original two burner working (automatically). I assume I have bad contorl units, what do you think?