Why your air fryer is noisy—and hacks to quiet it down

An appliance specialist says that for many air fryers, a rattling or buzzing sound is not immediately dangerous but should be checked, and that consumer education can help reduce hazards. The expert notes that noise levels vary by model and by usage, and that social-media posts have drawn attention to whether the noises people hear are normal. The takeaway is clear: listen for changes in sound, but recognize that some level of fan hum is expected when air is circulated rapidly to cook food.

Normal fan noise is, in fact, part of how an air fryer works. The fan moves hot air at high speed, and that motion creates sound during operation. Some models are naturally louder than others—larger units tend to generate more noise. This is one reason reviewers log and compare noise levels when testing air fryers, so shoppers can gauge what to expect. In general, some fan noise is normal, with many devices producing around 50 dB as a baseline when running.

Beyond normal fan hum, several practical factors can amplify or alter the sound a consumer hears during cooking. Debris under the crisper plate or around the fan is a common culprit. Crispy crumbs or small packaging fragments can find their way under the plate or cling to the fan housing, causing buzzing or rattling. Regular cleaning helps reduce this issue and also lowers the risk of safety hazards. If you suspect debris, the manufacturer recommends turning the unit off, cooling it completely, and inspecting the fan area — sometimes flipping the unit upside down briefly can help you get a clear view.

An uneven work surface is another frequent source of noise. If the air fryer wobbles on a counter, the vibration can affect how the fan runs and produce a rattling sound. The fix is straightforward: place the appliance on a flat, stable surface, ensuring the counter is level and free of tilts. Even a small slope can contribute to unwanted resonance while the appliance operates.

Foil, parchment, or disposable liners used inside air fryers can also move as hot air circulates. If liners lift or shift during cooking, they may flap or tap, creating an audible racket. More importantly, moving material can block air flow or cause the unit to overheat. To minimize this, food should weigh down liners, and if the problem persists, a reusable liner may be preferable. Consumers should monitor liners closely and ensure nothing inside the basket is loose enough to be propelled by the circulating air.

Loose components or an internal fault can produce a rattling, grinding, or whirring sound that stands out from typical fan noise. Over time and with heavy use, parts such as the basket, drawer, or handle may loosen. Before each use, verify that all components are securely in place. If the back of the unit has any loose parts or signs of faulty wiring—and the noise remains unusually loud, continuous, or has changed recently—it may indicate a motor or fan issue that requires professional attention. In such cases, stop using the appliance and contact the manufacturer or a repair service.

Placement matters as well. An air fryer positioned too close to a wall or another appliance can cause the fan noise to echo or vibrate against nearby surfaces, amplifying the sound. Providing space around the unit helps the fan operate as intended and allows hot air to escape safely during cooking.

Why it’s important to address a noisy air fryer promptly: don’t wait for persistent loud noises to escalate. A monthly quick check of the appliance’s mounting, seals, wiring, and interior components can help catch issues early and minimize potential electrical hazards. If any noise seems out of the ordinary or cannot be traced to a simple cause, stopping use and seeking guidance from the manufacturer or a qualified repair service is advised.

When troubleshooting isn’t yielding a clear source of the noise, most issues can be resolved through cleaning, repositioning, or securing components. If the noise continues or worsens, users are encouraged to stop using the device and contact the manufacturer for further guidance.