Usually when a switch is bad it won't work at all again so it's not a reset problem and there isn't a reset switch anyway.you could have a bad motor,when the motor heats up it's overheating and cutting out.when it stops does it start right back up when you press the start button or do you have to wait a while?also when was the last time the dryer was cleaned out?if there's a blockage of some kind it could make the dryer run hotter than normal and it will cut out,also you can cook the thermal fuse or the high limit thermostat located on top of the heater box. first make sure you have 240 volts coming to the dryer,with a meter,put it on volts and from the white wire to the red you should have 120 volts and from the white wire to the black you should have 120 volts,this is where the power cord is connected to the dryer in the rear.if that's correct then unplug the dryer,remove the vent line and remove the back panel,with a meter check the white thermal fuse,pull one of the wires off any switch you're checking and read it out,it's to the right of the duct that the lint filter slides into also while your back there check the thermostats on the heater box on the right hand side.if the thermal fuse was bad change it out,it's a 3392519,this will happen from lint biuld up,now take out the lint filter and the two phillips screws on the top panel,then take out the four screws holding the duct on and clean it out with a vac,also if the vent line is long i use a leaf blower and blow out the vent line to clean it,just make sure the vent outside isn't blocked with a cage or something if it is i would remove it permenently.put the back together and move to the front,with a screw driver pop the top panel up,on each side there's a clip around 2 inches in from the side,just pop the top near the clip and make sure you still have the two screws out that are in front of the lint filter,next there are two 5/16 inch screws one on each side that holds the front panel onto the side panels,remove them ,disconnect the door switch wires and pull up on the front panel and remoe it,vac out the inside of dryer,if you have a shop vac put it on blow and blow out the motor and you can blow all the lint from the back of the dryer to the front so you don't have to remove the belt and drum,put it back together and start it up,let me know what you find,