Large element was only heating partially.

First I turned off the power. Next I disconnected the downdraft vent. Then I removed the cooktop knobs and turned it upside down on the counter. I then removed about 12 screws to remove the element housing. I then unsnapped the old element, disconnected the 3 wires, replaced it with the new element, replaced the housing and screws. I replaced the cooktop, reconnected the downdraft hose and turned on the power.