This is a common issue with some Whirlpool manufactured dishwashers. This information 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_whirlpoolNow, keep in mind all
dish washers are not alike and have different panel options. If you do not have the same set up that I have mentioned, the tech sheet for your
dishwasher will explain the touch pad functions. 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.