Why Is My Dishwasher So Loud? 5 Common Causes to Check

1. Spray Arm Hitting Dishes

One of the most common causes of loud noises in a dishwasher is the spray arm hitting your dishes. This typically happens when the dishwasher is loaded improperly, and the spray arm doesn’t have enough clearance to spin freely. Ensure that larger items like pots and pans are placed in a way that gives the spray arms enough room to rotate.

Fix:Rearrange the dishes in the dishwasher to prevent the spray arm from coming into contact with them.

2. Loose or Worn Bearings in the Motor

The dishwasher’s motor is responsible for powering the spray arm and circulating water throughout the unit. Over time, the motor bearings can become loose or worn out, resulting in a grinding or rattling noise during operation.

Fix: If you suspect motor issues, it’s best to call a professional appliance repair technician to inspect and potentially replace the motor.

3. Debris in the Pump

Small pieces of food, broken glass, or other debris can get trapped in the dishwasher pump, causing it to work harder and make unusual noises. This can also lead to drainage issues if not addressed promptly.

Fix: Clean the filter and pump area to remove any blockages. Make sure to run the dishwasher with a filter cleaning solution regularly to prevent build-up.

4. Faulty Wash Impeller

The wash impeller is a small fan-like part that pushes water through the spray arms. If it becomes damaged or worn down, it can cause loud buzzing or scraping sounds. A faulty impeller can affect the overall cleaning performance of your dishwasher as well.

Fix:Inspect the impeller for any visible damage. If it’s broken, replacing it can resolve the noise issue.

5. Worn or Damaged Door Seal

The door seal plays a crucial role in keeping water and noise inside the dishwasher. Over time, the seal can become worn, cracked, or loose, leading to not only water leaks but also more sound escaping during cycles.

Fix: If you notice a damaged door seal, it’s time to replace it. This can be done relatively easily, but if you’re unsure, contact a technician for assistance.

At Major at Appliance Repair, we understand that a noisy dishwasher can disrupt your home. If you’re experiencing persistent noise problems and are unsure how to fix them, give us a call. We’re here to provide fast, professional, and reliable dishwasher repair services to get your kitchen running smoothly again.

Frequently Asked Questions