I have a K-A KUDS220T3. I have owned it for at least fifteen years and I purchased at an auction. It's possible 18 years old. In the prior 15 years, I went through three Kenmore Dishwashers. I have never had to have this unit serviced. I recently needed a basket wheel lock or whatever it is called. My door gaskets were bad. I would like to review the manual on how to install new ones. i.e. new gaskets