My 4 year Frigidaire electric oven (GLEB30S8ABA) is not heating properly. If I set the temperature to 400 the oven heat to around 225 after 30 minutes or so. The broil element heat properly. so I thought the problem was the baking element. I replaced the baking element, but it did not solve the problem. The baking element does not heat at all even after replacing it with a new element.

Further checking required