Our dryer originally was taking a long time to dry clothes, now it doesn't dry at all. It still rotates, but blows only cold air. Is it the thermostat?
Most likely thermal cutoff located on top left, of the heater box. also could be the element it self, or the operating thermostat, or hi-limit thermostat. Test them all useing your ohm meter, for continuity!
Dryer is not heating 
