If you have checked the filter, cleared the air gap, and snaked the hose, but water is still standing, you may have a broken drain pump or a jammed impeller. At this stage, the repair requires electrical testing and parts replacement, making it a job best left to a licensed appliance technician.
If you have tried all three steps and the water still won’t drain—or if the dishwasher isn’t turning on at all—the issue may be a failed (which costs less than $50 to buy but requires electrical know-how) or a deep blockage in your home’s plumbing line. dishwasher drain is clogged