The dryer stopped heating last week.  Rather than run out and buy a new one, I took the old one apart and found tons of lint, dust and sand.  Even after cleaning though, I still did not have heat.  I pulled the sensors and the heating coil and it all looks like the stuff that came with it originally.  I found the model number and I used www.searspartsdirect.com to identify the part numbers I needed.  The part were way expensive there, but looking on amazon I found some after market parts that would work.  $50 later, I have a functioning dryer.