How to fix a Maytag sdg4606aww dryer?

I have a Maytag dryer model sdg4606aww, it would complte a cycle but never heat up or even get warm. I pulled the front panel off and cleaned all the dust and lint, making sure not to mess any of the wires or connections. I then started it and it worked perfectly and with heat. Then all of a sudden it stopped working and it won't start at all. I checked the outlet and its good, what am I missing or what did I do wrong?

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