GE JRP15 Electric Single Oven "cook frozen lasagna" Questions

...Frozen lasagna "cooked" 45 mins and was still almost frozen. Oven was warm inside, not hot. Bottom element glowed orange when I increased the temp setting to 400F, didn't help at all. The oven was ...

...cook frozen pizza on the stove top, but we really need a working oven again. Please help! Hello Unplug the unit or shut off the circuit breaker for 5 minutes. Plug the unit back in or turn on the ...