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That reset is there for a reason if it keeps tripping it is most likely poor ventialtion( pluged vent, lint screen, kinked or to long of a vent, improper vent hood).
If Your dryer is connected to a vent that looks like this>
Either this style with the foil or the plastic are not rated for enough air flow for newer dryers You will want to upgrade to this>
this is a rigid flexible, or to a solid aluminum dryer vent tubing either is sufficient.
Also if the exauhst hood on the outside of Your home looks similar to this>
Change it to a more free flowing hood like the louvered one below>
correcting these should keep that from needing reset so often, remember that over loading and not cleaning the lint screen can cause this problem also.