Gas dryer starts and then stops in about 30 seconds.

Samsung gas dryer model dv42h5200gp/a3.

It stopped and shoes a flash HE on the display a few weeks ago. I cleaned out the vent which was a little clogged and it seemed to be working fine. Today it's starts and stops after a few seconds. Maybe 30 second or so. Flash's the HE code on the display. I took the front off and cleaned the blower which was had a fina clogged up. Still it starts and then stops running in about 30 seconds. I took off the vent hose and it has plenty of air flow but still stops. I am going to take it apart and check the wires and see if the igniter is cracked or broken.

Anything else I should check ? Any help is appreciated.