I have same problem
The machine is Model MW511 PRIDE
Serial No ULN641725
The lights that come on are on the "Wash Progress" line of lights.
The 3rd & 4th wash lights as well as the light directly over top of the "Spin".
When the "Start/Pause is pushed, the light above that button glows. It is labelled "Lid Locked".
Kiwi Will
June 2010