A tech here at Appliantology recently ran into a dryer that would not start. As he explains in his post:

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Went out and found start button did not feel right. I ran a jumper acrosss the 2 wires of the start swith and it started right up.

I changed out start switch and it still will not engage. Not sure where to go from here.

After he's already changed the start switch, what could be the problem here?

Well, as several techs in that topic helpfully pointed out, even if you replace the start switch itself, there is a common failure of the plastic button itself that prevents the switch from being actuated. 

As esteemed Appliantology brother Rhubarb Tau explained:

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I had a GE dryer not too long ago with a split start button; the switch worked fine but the button cap was split allowing it to slip down too far on the switch shaft without actually closing the switch. 

Here's a picture of what that kind of failure looks like.

This is a recurring design flaw in this particular dryer, so keep this troubleshooting tip in your toolbox next time you work on one!

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