dryer would start to heat and then shut off

I ordered the thermal cut-off kit and replaced both of the fuses. The dryer worked! Unfortunately, after one or two loads it had stopped working again. Previously the dryer would heat up for a minute and then shut off. Now it doesn't heat at all. The motor turns on and it spins and blows cold air. The lint path is clear. I'm kinda stumped by this one. Who has some ideas for me?