A dishwasher that runs a full cycle but leaves dishes dirty is one of the most common appliance complaints in DFW homes. Before replacing the unit, check these common causes.
Why Your Dishwasher Is Not Cleaning Properly
Clogged spray arms The spray arms rotate and shoot water to clean dishes. The small holes in the arms can get clogged with mineral deposits and food debris, especially in North Texas where hard water is common. Remove the spray arms and clean the holes with a toothpick or small brush.
Blocked or dirty filter Modern dishwashers have a filter at the bottom of the tub that catches food particles. If it is not cleaned regularly, water recirculates with debris and dishes come out dirty. Most filters should be cleaned every 1 to 2 months.
Low water temperature Dishwashers need water at 120°F to clean effectively. If your water heater is set too low or the dishwasher’s heating element has failed, dishes will not come clean. Check that your water heater is set to at least 120°F.
Faulty water inlet valve If the dishwasher is not getting enough water, dishes will not be cleaned properly. A failed water inlet valve restricts water flow into the unit. This requires a technician to diagnose and replace.
Hard water buildup North Texas has some of the hardest water in the country. Mineral deposits build up on the interior walls, spray arms, and heating element over time. Running a dishwasher cleaning cycle with a commercial descaler monthly helps prevent this.
Worn door gasket If water leaks during the cycle, the tub may not fill properly and dishes will not get clean. Inspect the rubber door seal for cracks or gaps.
When to Call a Technician
If cleaning the filter and spray arms does not resolve the issue, it is time to call a professional. A technician can diagnose whether the problem is a faulty pump, water inlet valve, control board, or heating element.
BTU Home Services — Dishwasher Repair Across DFW
We repair all major dishwasher brands. Same-day appointments available in Dallas, Frisco, Plano, Carrollton, McKinney, Allen, Addison, and surrounding areas.
Call (888) 588-3314 or book online at btuhomeservices.com