How to Troubleshoot & Replace Whirlpool AP6007590 / WP31001192 Dryer Cycling Thermostat

Ended up replacing the cycling thermostat which corrected the problem. Andrew C. was very helpful with considerations and return of unneeded parts as well as very informative technical assistance. Could not have been treated better. 

Replaced the belt and heater element because they were worn, but still functioning. Replaced the thermal fuse by the heater element because it was showing open on a meter. Replaced the tstat cycle because it was working improperly. Everything except for the thermal fuse tested properly for continuity. I imagine that the t stat cycle was not shutting off when it was supposed to causing the heater element to keep getting hotter even when desired heat was reached. This caused the thermal fuse to pop open. 

Installed a heating element kit. The parts were oem [maytag] not china 

I replaced the thermal shutoff, and two other thermostats-one in the heater plenum and the other near the fan vent. No dice. I think now it might be the motor thermal shutoff and the motor is going bad. Onward! 

Replaced the cycling thermostat.