I have had this dryer for 3 months and it has stopped heating. I have checked the lint filter and the exhaust hose and it's clean. I tried the SmartThings app and found out it won't work with dryer.
Everything else works.
You want to make sure there isn't any icons on the dryer flashing.
The dryer is giving a little bit of heat:
use the following link to find a list of service centers near that can do the in/out of warranty repair. http://www.samsung.com/us/support/service/location