[philnpat]

If you are able to, disconnect the dishwasher drain where it empties into the garbage disposal. Place the end of the drain hose into a bucket. Turn on the dishwasher and enter a drain cycle. Check to see if water drains into the bucket. If it's slow or non existent, you might have a clogged or kinked drain hose. If pumps out with good force, the nipple going into the garbage disposal might be restricted with food waste. Clear it out with a popsicle stick or screwdriver.