Is your dishwasher leaving food bits, film, or cloudy glassware behind? A dishwasher that doesn’t clean properly is one of the most common complaints we hear—and the good news is, it’s often fixable. Here are the most likely reasons your dishwasher isn’t doing its job, and what you can do to fix it.

1. Clogged Spray Arms

  • Problem: Spray arms rotate and shoot water to clean dishes. If the holes are clogged with food debris or hard water deposits, water can’t reach every dish.
  • Fix: Remove the spray arms and rinse them under warm water. Use a toothpick or small brush to clear clogged holes.

2. Dirty Filter

  • Problem: Most dishwashers have a filter that traps food particles. If it’s clogged, dirty water recirculates during the wash cycle.
  • Fix: Remove the bottom rack, twist out the filter, and wash it thoroughly under warm water.

3. Overloading the Dishwasher

  • Problem: Cramming too many dishes in can block water flow and prevent detergent from circulating properly.
  • Fix: Load dishes so that nothing obstructs the spray arms. Place larger items like pots and pans on the sides or bottom.

4. Using the Wrong Detergent (or Too Much of It)

  • Problem: Too much detergent can cause residue buildup, while low-quality detergent may not clean effectively.
  • Fix: Use high-quality detergent recommended for your model, and follow the dosage instructions.

5. Hard Water Buildup

  • Problem: Mineral deposits from hard water can coat spray arms, filters, and heating elements.
  • Fix: Use a dishwasher cleaner monthly or add a rinse aid. A water softener may help in severe cases.

6. Water Temperature Is Too Low

  • Problem: Water that’s not hot enough won’t dissolve grease or activate detergent properly.
  • Fix: Run the hot water in your sink before starting the dishwasher. Ideal water temperature is 120°F (49°C).

7. Faulty Inlet Valve or Pump

  • Problem: If your dishwasher isn’t filling or draining correctly, internal components may be failing.
  • Fix: This may require professional repair. If you’ve ruled out other issues, it’s time to call a technician.

When to Call a Professional

If your dishwasher still isn’t cleaning well after trying these tips, you may be dealing with a worn-out motor, blocked drain hose, or faulty sensor. At Maple Leaf Appliance Repair, we can diagnose and fix any dishwasher issue fast.

Don’t live with dirty dishes—book a service visit today and get your dishwasher back to full power.