If your dishwasher isn’t draining, you’re definitely not the only one dealing with it—I get calls about this all the time around Bethesda. After 10+ years fixing appliances, I can tell you it’s usually something pretty fixable, but it’s worth addressing sooner rather than later.
Most of the time, the problem comes down to a clog. Dishwashers need a clear path to push dirty water out, and things like food scraps, grease, or even tiny bits of glass can get in the way. The first place I usually check is the filter at the bottom of the dishwasher—it’s amazing how much can build up there. The drain hose under the sink is another common spot. In some of the older homes in this area, I tend to see more buildup just because of how the plumbing is set up.
Another possibility is the drain pump. That’s the part that actually pushes the water out. If you hear a humming sound but the water isn’t going anywhere—or it’s completely silent—the pump could be worn out or stuck. That’s pretty normal wear and tear over time.
I also run into issues with the air gap (that little cylinder on your sink) or the garbage disposal connection. If you recently had a disposal installed and the installer forgot to remove the knockout plug, the dishwasher can’t drain at all. It sounds minor, but it’s a surprisingly common fix.
Less often, it can be an electrical issue—like a bad control board or a float switch that’s stuck. That tends to show up more in older units.
If you want to try a quick fix before calling someone, check and clean the filter, make sure the drain hose isn’t kinked, and run your garbage disposal if it’s connected. If that doesn’t do it, it’s probably time to have a technician take a look. Standing water can start to smell and cause bigger problems if it sits too long.
Most of these issues are pretty straightforward to fix—I can usually get things draining again in one visit.
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