Thermostat Overshoot Proof With Oven Thermometer Calibration
Air fryers can sometimes run hotter than their set temperatures, but you can verify and fix this with a single clear method.
How can I verify that my air fryer is running hotter than its set temperature?
Place a reliable oven thermometer in the center of the air fryer basket or on the middle rack, set the air fryer to a common cooking temperature such as 350°F, preheat for the manufacturer recommended time, then read the thermometer after the unit indicates it has reached temperature; if the thermometer shows a temperature consistently higher than the set point by more than about 10 to 15°F, the thermostat is likely miscalibrated. Make sure the thermometer you use is designed for oven temperatures and has a clear analog or digital display rated for at least the highest temperature your air fryer supports, and avoid touching the heating element or fan when inserting or removing the thermometer. For safety, always unplug the air fryer or switch it off before placing or removing the thermometer, use heat-resistant gloves or tongs if needed, and allow the interior to cool before handling the thermometer.
How do I calibrate the thermostat if the air fryer allows calibration?
If your air fryer has a calibration feature in the manual or service menu, follow the manufacturer’s specific steps: set the temperature to a baseline like 350°F, compare the built-in temperature reading to the oven thermometer reading after preheating, then adjust the thermostat offset according to the manual so the unit reads lower by the difference until the oven thermometer matches the set temperature. Perform multiple verification runs at different common temperatures, such as 300°F and 400°F, to confirm the calibration holds across the range; if the adjustment procedure is menu-based, take note of the original settings so you can revert if needed. Always power down the appliance and follow the manufacturer safety instructions for entering service modes, and if the device requires internal adjustments beyond user-accessible offsets, stop and seek professional repair rather than attempting internal modifications yourself.
What should I do if calibration is not possible or the thermostat keeps overshooting?
If the air fryer does not offer user calibration or continues to overshoot after attempting calibration, return or replace the unit under warranty or retailer return policy, documenting the temperature discrepancy with dated photos or video of the thermometer readings to support your claim. Before returning, contact customer support to confirm your troubleshooting steps and ask for an authorized solution such as a firmware update, repair, or replacement; if support is unhelpful and the temperature error is significant, request a refund or exchange to avoid unsafe cooking conditions. When disposing of or returning the unit, follow the electrical appliance handling guidance from the manufacturer and retailer to ensure safe transport and to avoid exposing others to a potentially faulty device.
Our top three recommended models are summarized in the table below for further comparison and selection.

- AIR CRISP TECHNOLOGY: 400℉ superheated air surrounds food for hot, crispy results with little to no oil.
- LARGE CAPACITY: The 5-QT nonstick basket and crisper plate fit up to 4 lbs of French fries or 5 lbs of chicken wings.
- 4-in-1 FUNCTIONALITY: Air Fry, Roast, Reheat, and Dehydrate.
- GUILT-FREE FRIED FOODS: Up to 75% less fat than traditional air frying methods. Tested against hand-cut, deep-fried French fries.
- FROZEN TO CRISPY: Cook frozen foods in just minutes for an extra-crispy finish.
- SPACE SAVER: Ninja’s latest air fryer design allows you to save even more space on your countertop without compromising capacity.
- EASY TO CLEAN: The basket and crisper plate are both nonstick for easy cleaning.
- WHAT’S INCLUDED: Air Fryer, 5-QT nonstick basket and crisper plate, chef-inspired 20 recipe book and cooking charts.

- MASTER GRILL, BBQ SMOKER, & AIR FRYER: All in one with 100% real smoky flavor..Voltage: 120 volts
- MASTER GRILL: Get all the performance of a full-size propane grill with the same char and searing.
- FOOLPROOF BBQ SMOKER: Create authentic BBQ bark and flavor fast and easy with just 1/2 cup of pellets.
- OUTDOOR AIR FRYER: Add smoky flavor to your air fried favorites and cook all your side dishes outdoors.
- NINJA WOODFIRE TECHNOLOGY: Powered by electricity, flavored by real burning wood pellets. Create rich smoky flavor you can see and taste with any cook function.
- EXCLUSIVE NINJA WOODFIRE PELLETS: Comes with 2 blends of 100% real hardwood Ninja Woodfire Pellets that pair great with anything you make. Used for flavor, not fuel, so you only need 1/2 cup.
- WEATHER-RESISTANT: Cook and store outdoors year-round.
- 1760-WATT ELECTRIC POWER: No charcoal, propane, or flareups. Balcony & apartment friendly.
- COOK FOR A CROWD: Grill 6 steaks or 30 hot dogs, air fry up to 3 lbs of wings, or BBQ smoke a 9-lb whole brisket.
- WHAT'S INCLUDED: 141-sq-in. nonstick grill grate, crisper basket, pellet scoop, Ninja Woodfire Pellets Robust Blend and All-Purpose Blend Starter Packs, & Quick Start Guide with 15 recipes.

- SMART SURROUND CONVECTION: High velocity fan and rear heat source completely surrounding food for all-around crisp.
- 2 LEVEL EVEN COOKING: Even cooking on 2 levels with no rotation, flipping, or shaking.
- 10-IN-1 FUNCTIONALITY: Includes 10 versatile cooking programs: Air Fry, Air Roast, Broil, Bake, Whole Roast, Pizza. Toast, Bagel, Reheat, Dehydrate.
- XL FAMILY-SIZED CAPACITY: Fits up to 2 9x9 baking trays; bakes up to 20 cookies, fit and cook 9 slices of toast or 9 bagel halves on a rack, fits up to a 12 lb. Turkey and allows for up to 8 lb. air fry capacity.
- QUICK FAMILY MEALS: 90-second oven preheat time and up to 30% faster cooking versus a full-size convection oven.
- PRESTIGE DESIGN: Superior performance with elegant style that fits in any home.
- AIR FRY HEALTHY MEALS: Up to 75% less fat than traditional air frying methods. Tested against hand-cut, deep-fried French fries.
- DIGITAL DISPLAY HANDLE: The optimal oven rack positions will illuminate based on the selected function. When the door is open, display settings freeze to prevent any accidental changes to the cook cycle.
- WHAT'S INCLUDED: Prestige Smart XL Air Fryer & Countertop Oven, (2) wire racks, (2) sheet pans, roast tray, removable crumb tray, air fry basket, 15 chef created recipes and cooking charts.