Hmmm, when that happened to my drier, my wife wouldn't let me FIX IT! She had been wanting a new drier for years ... now she is bugging me about the washer, so I probaly won't be allowed to fix it when it next needs repaired either ...
Bruce is right. You may check out www.repairclinic.com . They are who I use. Lots of help diagnosing problems, lots of pics to help you pick the right parts, cheaper than the dealer/service centers.