The green "clean' light keeps flashing rapidly and the washer now

This may help in your situation. The following link explains how you may be able to clear the blinking clean light problem:

http://www.fixya.com/support/r417123-blinking_clean_light_kenmore_whirlpool

Now...keep in mind all dish washers are not alike and have different panel options. If you do not have the same set up as I have referenced, the tech sheet for your dishwasher will explain. The tech sheet is located behind the lower toe panel under the door and lists the proper sequence of buttons to push for diagnostics and troubleshooting.

NOTE: Sometimes the tech sheet is located behind the inner door panel. You will need to remove the screws securing the inner panel to access it if this is the case. Make sure you turn off the main power breaker before doing so.

Sometimes this can be a momentary glitch in operation. However, if the problem keeps reoccuring the number of flashes is an indication of which circuit is causing your problem. Again, refer to your tech sheet to determine this.

If you have any questions, please let me know. I hope this helps you solve your problem.