There are multiple websites that offer brand-specific DIY help. Here
are a couple...

http://www.applianceaid.com/
http://appliancehelp.hypermart.net/

Here are a couple of forums dedicated to appliance repair....

http://www.appliance411.com/forum/
http://www.selfhelpforums.com/forumdisplay.php?f=9

Mr Fixit eh