I found two numbers. One up high and one on the caution decal.
The one up high reads SM(NNN) NNN-NNNNA
The lower one reads W10132084-A
I do not recognize the model you gave, But I think I know what one you have. It sounds like your pump is blocked. You will have to remove the pump to check for something blocking it or to replace if necessary. Click on link below to see how to get to the pump.
This is what I got when I went directly to YouTube.
No videos found for http://www.youtube.com/watch?v=FNRd04vwc4Y
Come on guys. I need some help here.