Kenmore triple mission drawer packed up? I purchased the Kenmore ultrabak triple task oven contained by Dec. 2005....

I purchased the Kenmore ultrabak triple task oven contained by Dec. 2005. The triple task drawer worked fine (although I didn't use it often). I tried to use it contained by October of '07 and it would not heat up and hasn't anytime since. I can't find my guide to see if there is an smooth "fix" that I'm forgetting. Any help would be greatly appreciated.
My smoke detector be making a chirping clatter...
Answers:    check the heat element, the switch or the electrics. most likely any the element or the switch. you will stipulation a multimeter to test both items