The Flair can be pulled & locked with only the two front surface units out, there is a cut out switch that prevens the back two from working in this position. I have three Flairs, one in storage & two hooked up, on one, both the speed heat & heat minder work perect, the other, speed heat works fine but indicator light is shorted & stays on all the itme, heat minder never worked but most of then don't, it's the control, not the unit going out. by the way, does yours have the rotisserie in it? It was an option & rare.