Here's a great Web site for troubleshooting problems and pre-purchase research...
www.fixya.com.
We recently bought (~6 months ago) a Kenmore Elite Oasis HE and have just started getting a fatal error (F51).
A quick Google search found this site which provided me a list of error codes, DIY solutions, problem causes, and how other owners dealt with the problem -- all for my specific model. A Sears rep even responded and said he sees 5 of these each week.
Luckily for us we bought the extended Sears warranty.
