LG LDF6810ST Stainless Steel Built-in Dishwasher "serial number ton" Questions

serial number. Installed new when house was built, builder confirms its a gsd6600g model. GE says not enough numbers to locate correct replacement. They sent two but both were wrong. Hello, uec  

...number AND serial number as there are a couple of version of control modules ) I have a suggestion as to identifying the culprit if you're open to it thus confirming or dismissing the cause...but you ...