First I want to thank everyone for their input, your comments and suggestions are much appreciated.
But, I have one more question. I have went through the manual twice, and can't find out what this switch is for. I have to say the manual is pretty vague. Lots of, "different models may vary"! Not much help.
Any way, in the little control center cupboard, there is one black rocker switch, by itself, it has a larger trim around it than the others. It is on the lower left as you are looking in.
Any idea what it is for? I have turned it on and off 50 times and can't find what it does.