Maytag Microwave: Making Loud Noise
Often a failing magnetron, a worn turntable motor, or a bad cooling fan. Add a photo of your Maytag Microwave in the box below: the Triage Profile says what it is, how urgent it is, and who to call.
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In the next five minutes
Safe first steps, before the call. Nothing here needs a tool.
Note what the noise sounds like and when it happens, then stop the microwave and switch off its breaker, or unplug it if the plug is dry and easy to reach.
Take a photo of the microwave and any code on the display, without opening anything.
Don’t use it again until it’s checked, and keep people away from it.
Everything else about this problem
Is it an emergency?
Is a loud noise from a Maytag microwave an emergency?
Usually not, but it can be. A grinding, rattling or humming that has just started most often comes from a fan, motor, belt or loose panel. Stop using it and cut the power if the noise comes with a burning smell, smoke or sparks.
Symptoms & causes
Loud noises in a Maytag microwave often indicate a failing component such as the turntable motor, stirrer motor, or cooling fan. A distinct buzzing or humming sound can point to issues within the high-voltage circuit, specifically the transformer or capacitor. Grinding or rattling noises typically suggest a problem with the rotating parts, like the turntable mechanism or the stirrer motor that distributes heat.
Tools & parts
For a noisy turntable, a new Maytag turntable motor can be installed using a Phillips head screwdriver. If the stirrer motor is the culprit, a replacement part for your Maytag model may be needed, and it needs a T20 Torx screwdriver for access. More complex high-voltage component issues, like a failing magnetron or capacitor, would necessitate a multimeter and high-voltage discharge tool.
Safety first
Always unplug your Maytag microwave from the wall outlet before attempting any inspection or repair to prevent severe electrical shock. Be extremely cautious of the high-voltage capacitor, which can store a lethal electrical charge even after the microwave is unplugged and must be safely discharged. Never operate the microwave with its outer casing removed, as this exposes you to dangerous microwave radiation and live electrical components.
When to call a pro
If your Maytag microwave is sparking, emitting smoke, or not heating food at all while making loud noises, it likely indicates a severe magnetron failure or a short in the high-voltage circuit. A persistent loud humming combined with complete lack of heating often points to a faulty high-voltage transformer or capacitor, which are dangerous components best handled by a certified technician. Any signs of arcing inside the cavity or a burning smell suggest a damaged waveguide or mica sheet, requiring professional assessment to prevent further damage and fire risk.
Questions people ask
Why is my Maytag microwave making a loud buzzing noise?
A loud buzzing noise often indicates a problem with the high-voltage transformer or capacitor within your Maytag microwave. These components are critical for generating the microwave energy and can fail over time, leading to audible symptoms.
Can I fix a grinding noise in my Maytag microwave myself?
A grinding noise is frequently caused by a faulty turntable motor or stirrer motor in your Maytag microwave. You can often replace these components yourself after safely unplugging the unit and accessing the internal parts, which usually involves basic tools.
What if my Maytag microwave is loud but not heating?
If your Maytag microwave is loud but not heating, it could be a failing magnetron, high-voltage diode, or capacitor. These components are part of the high-voltage circuit and are essential for generating microwaves, so their failure prevents heating.
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What it is, how urgent, who to call
Add a photo of your Maytag Microwave in the box at the top. The Triage Profile says what it is, how urgent it is, and who to call.