If your Magic Chef dishwasher is making noise, start with the most common cause: the drain pump. A dishwasher making noise can happen when the drain pump is clogged with debris or when the pump itself is failing, so check it first. Next, look at the circulation pump, since worn motor bearings often create a steady droning or humming noise during the wash cycle. If that is not the issue, inspect the drain impeller, which moves water through the drain hose, and then the wash impeller, which pushes water through the spray arm system. A broken, bent, or warped impeller can cause grinding, scraping, or other loud noise from the pump area. If the problem is deeper inside the unit, the pump and motor assembly or the circulation and drain pump motor may have failed, especially if the motor bearings are worn. For a Magic Chef dishwasher loud noise, dishwasher grinding noise, dishwasher buzzing noise, or dishwasher humming noise complaint, matching the symptom to the right part matters. Enter your model number on RepairClinic.com to find the exact Magic Chef drain pump, circulation pump, drain impeller, wash impeller, or pump and motor assembly for your dishwasher.
01 - Magic Chef Dishwasher Drain Pump
First, check the drain pump to ensure that it is clear of debris. If the drain pump is clean but it is still noisy, replace it.
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The circulation pump motor has bearings that wear out over time. When the motor bearings fail, they generate a continuous drone. If the motor bearings have failed, you must replace the entire circulation pump.
04 - Magic Chef Dishwasher Pump and Motor Assembly
Part of the pump and motor assembly (such as the motor bearings, drain impeller, or wash impeller) might be defective. Often, you can replace the pump’s individual parts. However, if you do not want to disassemble the pump to replace its parts, or if the parts are not available separately, you can replace the entire pump and motor assembly.
The wash impeller is a small plastic blade that forces water through the spray arms. If one or more of the impeller blades is broken, the dishwasher will make noise. In addition, if the impeller is damaged, warped, or bent, it can scape against the pump housing. Inspect the wash impeller for damage. If the wash impeller is damaged, replace it. On most models, you can replace the wash impeller independently of the pump and motor assembly. Search for your model number to determine if your impeller is replaceable. If the impeller cannot be replaced separately, you will have to replace the entire pump and motor assembly.
06 - Magic Chef Dishwasher Circulation and Drain Pump Motor
The circulation pump motor has bearings that wear out over time. When the motor bearings fail, they generate a continuous drone. If the motor bearings have failed, replace the motor or replace the entire pump and motor assembly.