Have older model, AAU34003. Soap dispenser door would not open. Removed inner panel and cleaned up all the build up of old soap. Discovered spring on soap door was not set correctly. Now, there is a piece of plastic about 16" long with a couple of channels that somehow clips to the bottom of the inner panel or bottom tray. Not sure what it does but I can not figure how/where it attaches. It looks it might be some sort of water seal. Thanks in advance.