Product review (5 stars): It's just a switch at a fraction of the Sear's price
I have a Kenmore 90 series.  I looked up the replacement part number from Sears.  I brought this one with the same part number, at a fraction of the cost, plus probably save me a hundred for labor.  It fits and looked the same.  If this switch fails in the future, I may just short the two outer wires to remove the safety feature.  Nobody ever really interested in going into the laundry room, and put their hands in the washer.

I suggest a new approach to trouble shooting by those who can't nor don't want to afford professionals.  Look at what is the most popular replacement part of your model.  This is it.  So I test if the old switch failed and it was.

When my last washing machine failed there was no Youtube.  I was surprised how easy it is to open up the machine.  It is a little more complicated and messy if you have detergent, fabric softener and bleach dispensers on the outer casing with tubes attached.