Squeaking Noise When the Dishwasher Runs

Lubricate the Door

• If your dishwasher only squeaks when you open the door to load or unload it, then the problem is nothing to worry about. A dishwasher uses water, and over time the lubrication in the door hinge can get washed away. This results in a squeaking noise when the door is opened and closed. All you have to do is open the door, locate the hinges and lubricate them. Use common lubricating spray to get the door moving silently again.

Motor Bearings

• The grease that lubricates the dishwasher’s motor bearing can get washed away over time. When this happens, the bearing will begin to squeal or squeak. When the spin seal that protects the motor bearings wears out, which is often the case in this situation, a leak will sometimes develop under the dishwasher. Replace the seal to stop the bearings from getting wet, but if it is already making the noise, you will need to replace the motor as well.

Heater Fan Motor

• If your dishwasher only squeaks or squeals during the drying cycle, then the heater fan is likely the source of the noise. The fan that cools the heater may have rusted or worn bearings. The spinning of the fan will then result in a squeaking, squealing or rubbing noise that will be audible during this final cycle. You will have to replace the fan motor to stop the noise.

Spray Arm

• Sometimes the squeaking noise you hear is not an issue with any mechanical part of the dishwasher. A spray arm quickly rotates inside the tub and sprays water onto the dishes to knock off the stuck-on mess. Sometimes the pressure is great enough, especially on light dishes, to cause them to move and rub or knock against other dishes nearby. The noise that results can vary, but it may include a squeaking sound as metal or ceramic items in the load move against one another.