[cahrdo]

I have an RCA electric range. for the most part, it has given me great service. The one problem I am having a problem with the "self clean" mechanism. Whenver I try to use it a mesage indicating "door" flashes. I can see no reason for this. My wife and I have cleaned it using regular chemicals, in the hopes that the problem is due to over-sue and not using the cleaning cycle as much as we should. Howeve, this has not helped. I'm hoping you may have some suggestions.