No, you should never run your residential dishwasher if there is already standing dirty water pooling at the bottom of the tub from a previous failed cycle. Operating the machine when the drainage path is blocked means the dishwasher will pump even more water into an already full tub, causing a severe kitchen overflow that will flood your floor and potentially damage surrounding cabinetry and electrical components. You can troubleshoot drainage blockages easily. You can verify that your corrective action is successful when bailing out the stagnant water, clearing food debris from the sump filter, and running a manual forced drain cycle leaves the tub completely empty before starting a new wash.
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