If you’ve ever opened your dishwasher after a cycle only to find cloudy glassware, stuck-on food, or a funky smell—you’re not alone. Dishwashers are supposed to make life easier, but when they stop doing their job, it’s more than frustrating—it’s a sign that something needs attention.
Many homeowners assume a breakdown means a major repair. Sometimes that’s true—but more often than not, the fix is simple. From maintenance issues to detergent choices, there are several common culprits that can impact its performance.
As a trusted provider of dishwasher repair in Raleigh, NC, we’ve seen it all—and we’re here to help you figure out what’s going on. Here are some of the most common reasons your dishes aren’t coming out clean—and what you can do about them. And if it does turn out to be something more serious, you can count on us to take care of it.
1. Clogged or Dirty Spray Arms
Spray arms are what distribute water throughout the machine. If they’re clogged with food particles or hard water deposits, water won’t reach your dishes properly.
What to do:
Remove the spray arms and rinse them under warm water. Use a toothpick or small brush to clear any holes. If buildup is severe, you may need to soak them in vinegar to break down mineral deposits.
2. Overloading
Cramming too many dishes into a single load prevents water and detergent from circulating effectively—leaving you with dirty dishes and the need to rewash.
What to do:
Avoid overlapping dishes, and make sure each item has enough space for water and detergent to circulate freely. Keep larger items like pots and pans away from the spray arms so they don’t block water flow. For best results, follow your manufacturer’s recommended loading guidelines—especially for tricky items like utensils, cups, and tall dishes.
3. Using the Wrong Detergent (or Too Much)
Not all detergents are created equal—and using the wrong kind, old detergent, or simply using too much can lead to cloudy glasses, leftover food particles, or even gunky build-up inside your machine over time. This is especially common in areas with hard water, where cheaper or expired detergents may not dissolve properly or rinse clean.
What to do:
- Choose a high-quality detergent that’s compatible with your water type (hard or soft). If you have hard water, look for detergents that contain water softening agents to help prevent mineral deposits.
- Avoid using old or expired detergent, as it may not dissolve properly and can leave residue on your dishes.
- Using too much detergent can be just as problematic as using too little—more soap does not mean cleaner dishes. For better portion control, consider switching to pre-measured pods or gel packs, which deliver the right amount of detergent every time and reduce the risk of residue.
- Avoid mixing detergent types (like powder and liquid) and steer clear of regular dish soap, which can create excess suds and cause damage to your machine.
4. Filter Needs Cleaning
The filter is designed to trap food particles and prevent them from recirculating onto your dishes or clogging the drain. But when the filter gets clogged with debris, it can restrict water flow, reduce cleaning performance, and even cause unpleasant odors.
What to do:
Locate the filter—typically found at the interior bottom of the machine beneath the lower spray arm. Most filters unlock with a simple twist. Carefully remove the filter and rinse it thoroughly under hot running water, using a soft brush or sponge to gently scrub away any stuck-on debris. For especially greasy buildup, soak the filter briefly in warm, soapy water before rinsing. To maintain optimal performance, clean the filter at least once a month—or more frequently if you regularly wash heavily soiled dishes. Keeping the filter clean helps the machine drain properly and ensures your dishes come out cleaner and fresher every time.
5. Low Water Temperature
Dishwashers rely on hot water (typically at least 120°F) to properly dissolve detergent and sanitize your dishes.
What to do:
Check the setting on your water heater to ensure it’s delivering water that’s hot enough. If the temperature is too low, detergent may not break down completely, leaving behind a filmy residue on your dishes and inside the machine. To help ensure hot water reaches the appliance right away—especially during colder months—run the kitchen faucet until the water is fully hot before starting the cycle.
6. Malfunctioning Components
If it still isn’t cleaning properly after addressing common issues, the problem may be with internal components. A faulty water inlet valve may not be allowing enough water into the machine. A broken detergent dispenser might not release detergent at the right time. Or a worn-out circulation pump may not be generating enough pressure to spray water effectively.
What to do:
This is where we come in. Diagnosing and repairing internal components requires specialized tools and expertise—and that’s exactly what we bring to every job. Our skilled technicians will perform a thorough inspection, identify the issue, and provide you with a detailed, upfront estimate. If you choose to move forward with the dishwasher repair, your diagnostic fee will be applied to the cost of labor. And if we need to order a part and return at a later time, there’s no additional trip charge—just reliable, honest service from start to finish.
Trusted Dishwasher Repair in Raleigh, NC
Our experienced team provides fast, dependable appliance repair service throughout Raleigh and the surrounding areas. With clear pricing and quick turnaround, you can rely on us to restore your appliance’s performance without hassle. We stand behind our work with a comprehensive warranty—offering a 1-year labor guarantee and a lifetime warranty on most parts. Ready to take the next step? Fill out our online contact form or call/text us at (919) 443-0899 to schedule your appointment or get more information about our services.