S/N 092107RI0492-Ive had numerous calls on this unit, but I cant ever find a problem with it, yes the dreaded intermittent problem. Although the last time that I was there I set it to 350F, and babysat it for almost two hours while I did other things in the kitchen. At one point, about an hour into it, it did drop to about 290f, I opened the door, it relit then continued to cycle around 350F. Im not comfortable with just shotgunning the unit, Im hoping that maybe someone here might have seen the same problem and has solved it and can pass along the fix. Or if someone can pass along a service manual for this unit, that would be great too. Thanks in advance.