A dishwasher should operate quietly, so if yours starts making unusual noises, it may indicate a mechanical issue. One of the most common reasons for loud noises is a malfunctioning pump motor. The motor powers the spray arms and drainage system, and if it wears out, it can create a loud buzzing or grinding sound.

Another possible cause is a broken spray arm. If the spray arm is damaged or misaligned, it may hit the racks or dishes, creating a knocking noise. Checking the spray arms for obstructions and repositioning them can sometimes resolve the issue.

The water inlet valve can also contribute to noise problems. This valve controls the amount of water entering the dishwasher, and if it becomes faulty, it may produce a high-pitched whistling sound. Additionally, worn-out bearings in the circulation pump can lead to a rattling noise during operation.

If your dishwasher is making excessive noise, it’s essential to have it checked by a professional Dishwasher Repair Louisville service. Ignoring the issue could result in further damage and costly repairs. For expert assistance, contact Dishwasher Repair Louisville and schedule a service appointment.