I ordered High Limit Thermostat, Samsung Thermal Fuse and Dryer Thermistor did not know which one I needed and while I waiting on my parts I found on YouTube how to check to see what might be wrong. I got the parts in and I pulled the Thermal Fuse and shook it and it did not have rattle to it replaced it and it works great so if something goes wrong I have the other two. It took me a few hours to do it but not bad since I am a 60 year old woman and first time working on a dryer