Dryer heats initially and for several cycles.(10-15 minutes) Then the burner will not light when the ignitor lights. Is there a specific thermostat that would be a likely culprit? All other motor and functions are normal. I did replace a "sensor" adjacent to the ignitor with no improvement.

There is some general info on troubleshooting gas driers in the sticky.

What portion is failing? Ignitor, pilot or main burner?