Purchased lower heating element at a good price at appliance parts pros. Used guidance from a previous user with the same problem. Great result with minimal issues. Just took some time and heavy lifting. Not as strong as I was when I installed the double oven. When you remove the brackets and screws to separate the double ovens to get access to the trap door on the upper oven, it helps to create a general diagram to facilitate their replacement. Took about 3 hours.