It could be the thermal fuse, that is located in the back of the dryer. Unplug the dryer, and take the back off, and you will see the thermal fuse, it is white in color, and it is a inch and a half long, and a half inch wide, and has 2 wires coming to it. If you want to do a quick check, you can take the two wires off of the thermal fuse, and put the two terminal ends together, and put some tape around them, so it does not hit metal, and then turn the dryer on. If it heats, replace the thermal fuse. if not replace the ignitor. DO NOT run the dryer with the thermal fuse jumped out. The thermal fuse is between you, and burning down the house. If you need me you can reach me at my web site at ApplianceEducator.com Tom