When the tech came to check the dryer, he checked everything and said everything seems to be in working order (all diagnostic tests were normal). I asked him if there was any way to check if the control board was in working order and he said "no." Therefore, he diagnosed the control board as being the problem.
The odd thing is that first my dryer went out, then two weeks later, my heater stopped working. This house is nearly five years old so I would think appliances should last longer than that.