My dryer is running but not putting out any steam or drying the clothes...sustain?

Answers: Sounds like the heat elements are burned out.:)

May be the heater coil.
:-)
Make sure that adjectives lines are not blocked with fuzz.

I've have this happen earlier. My dryer vent was clogged beside lint. Feel the outside vent to "see" if heat is coming out. If not, time for a cleaning!