no hot air in dryer.

Dryer stopped drying clothes, burning smell. element is working, or so I think. I took the back off the dryer and cleaned debris out of the back near the element. That stopped the burning smell, but clothes are still not drying. Possibly the blower fan is blocked? I took the vent hose off when I retested it and did not feel any air blowing through vent. any help is greatly appreciated!

Blower fan is not clogged and the motor spins freely, how long should the element stay on? I do not have a multimeter, so try to help me out guys

On second note, after put back together , element gets hot and cuts off but no air coming out of vent, does this mean the blower motor is shot?