Dishwasher does not drain and water backs up into the Project Source disposal

Safety first: Turn off power to the disposal and unplug the dishwasher if accessible.

• Check knockout plug: Disconnect the dishwasher hose from the disposal. Insert a screwdriver into the inlet and verify the knockout plug has been fully removed. If not, knock it out and remove the plastic disc from inside the grinding chamber.
• Inspect hose: Check the dishwasher drain hose for kinks or clogs. Flush it with water or compressed air if needed.
• Clean inlet: Clear any buildup at the dishwasher inlet nipple on the Project Source disposal.
• Verify disposal drain: Ensure the disposal and sink drain are not clogged by running water and briefly operating the disposal.