Ok so im having trouble with the lower element not heating. The broil works great and with that so does the quick preheat, i can see the upper element glow but nothing from the lower. i have replaced it and still no dice, and i have checked for power and it has 120 on both sides. for now i have switched the wires from the broil top element to the bottom one and it glows and works but it wont hold temp durring the bake option. the oven will preheat to say.. 400 but then will drop to 275 and hold there.. any help please. :confused: