Think in jobs, not parts
When a dishwasher fails, it helps to ask which job it stopped doing. The answer points a technician to a small group of parts instead of an open-ended search.
1. Fill — water is not getting in
A dishwasher that starts but runs dry, or never begins, may have a closed or kinked supply valve, a clogged inlet screen, a failed inlet valve or a float switch stuck in the "full" position. Dishes that come out dry and dusty after a full cycle often trace back here.
2. Wash — water is not cleaning
Gritty glasses and food baked onto plates are usually blocked spray arms, a clogged filter, or water that is not hot enough. Hard water leaves a white film on glassware; that is mineral scale, not soap residue, and it can also coat the heater and the spray arm nozzles over time. Central Texas water is generally hard, so a regular filter clean and a periodic cleaner cycle designed for dishwashers are worth the habit.
3. Drain — water is not leaving
A puddle in the tub at the end of a cycle is one of the most common calls. Causes range from a clogged filter or kinked drain hose to a blocked air gap, an uncleared disposal knockout plug on a newly installed disposal, or a jammed drain pump. We cover the practical checks on our dishwasher not draining page.
4. Heat and dry
Plastic items staying wet is normal in many machines. Everything staying wet, or no heat at all, points to a heating element, high-limit thermostat, vent or rinse-aid dispenser issue. Check that rinse aid is filled before concluding a part has failed.
5. Think — controls and sensors
If the dishwasher will not start, lights flash, or a code appears, the door latch switch, a thermal fuse, a control board, or the child-lock setting is often involved. Write the code down exactly as shown; the model's manual or a technician can translate it.
Leaks are a priority
Water on the kitchen floor can damage cabinets, flooring and the subfloor quickly. Shut off the dishwasher’s water supply valve (usually under the sink) and turn off power at the breaker if water is near electrical parts. Common leak sources are a worn door gasket, a loose or cracked hose, an overfilled or oversudsed tub, or a failed pump seal.
Hand-dish soap creates heavy suds that can overflow through the door and bypass sensors. If it happens, stop the cycle and let the foam settle before running a rinse.
Maintenance that avoids many calls
- Rinse and clean the filter assembly monthly, following the model’s manual.
- Scrape bones, pits and paper labels off dishes — those are the objects that jam drain pumps.
- Run the hot tap until it is hot before starting the dishwasher so the first fill is not cold.
- Keep rinse aid topped up if your water leaves spots.
- Check under the sink periodically for dampness around the supply and drain connections.
Repairing versus replacing
Pumps, valves, latches and heaters are usually good candidates for repair when the machine is under roughly a decade old and otherwise sound. A rusted tub, a failing control board on a budget model, or a unit of fifteen years or more may tip the balance toward a new machine. Ask the technician to quote the repair and the likely remaining life. When you are ready for an estimate, local appliance repair help starts with a short request.
Other kitchen jobs frequently go along with a dishwasher visit — a sluggish garbage disposal is a common cause of drain issues, and everything else we handle is listed on the home page.
Questions people ask
How long does a dishwasher cycle normally take?
Modern machines often run between about two and four hours on normal settings because they use low water volumes and sensors. A cycle that runs far longer than usual, or never ends, can indicate a heating, drain or sensor issue.
What is that standing water at the bottom?
A small amount of water in the sump at the bottom of the tub is normal in many machines. If water is up to the filter or above it after a cycle ends, it is probably not draining.
Why are my dishes cloudy?
Cloudy or white-filmed glassware is often mineral scale from hard water. A dishwasher cleaner, rinse aid and, where suitable, a water softening approach can help. Etching from over-detergent is permanent.
Is it OK to run vinegar through my dishwasher?
Some manufacturers advise against regular vinegar cycles because it can affect rubber parts. Check your manual and use a product approved for your model where possible.
Can you fix built-in drawer or panel-ready dishwashers?
Yes, requests are accepted for drawer, panel-ready and standard models. Tell us the brand and model so we can match the right technician.
Last updated October 13, 2026. This page offers general information to help you describe and understand a problem; it is not a diagnosis. Always follow your appliance manual and local safety rules.