My son just bought a dryer that is already giving him problems. He turns it on and it runs for about 20 to 30 seconds and turns off. When he pushes the start button to restart it, nothing happens. He has to wait a while before it will turn back on, only to have it shut off in 20 to 30 seconds again. Could this be a thermostat or thermal fuse problem? We want to try fixing it instead of having to buy a new dryer. Could someone please help us?