Hi, you do not specify what make or model the dishwasher is. I think it may be in a self test.Is is a Diplomat?
If it is, you need to turn the machine off. Turn it on and within 3 seconds press the P button 4 times till the SUPER light comes on.Turn off the power then on again.This cancels the self test.Hope this helps. All the best.
FOXY, September 2008