Try looking for a leak on the base at the bottom . Pull your dishwasher out and tilt it to one side to see if water comes out , if so, you need to cure it . My leak was down to the bottom blade inside the dishwasher , make sure what the blade is attached to has not worked loose if so, tighten it from inside the dishwasher turning it clockwise. whatever the case the leak has to be cured as water build up on the base brings a microswitch into play that stops water filling . basically a saftey feature, my no 1 light was flashing also. Good luck.
Lee Roy
March 2010
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