So, you’re all set to cook a crispy batch of fries or juicy chicken wings, but your air fryer just won’t heat up. Frustrating, right? Don’t worry—you’re not alone.
An air fryer that refuses to heat can be caused by several issues, from something simple like a loose plug to a more serious problem like a faulty heating element. The good news? Many of these problems have quick fixes, and you might not need a replacement just yet.
In this guide, we’ll walk you through the most common reasons why your air fryer isn’t heating and what you can do to fix it. By the end, you’ll know whether it’s a simple DIY fix or if it’s time to contact customer support. Let’s dive in!
Common Reasons Why Your Air Fryer Is Not Heating Up
When your air fryer isn’t heating up, it’s usually due to one of a few common issues. Some are easy to fix, while others may require professional help. Let’s break down the possible causes and what you can do about them.
Power-Related Issues
Before diving into technical problems, let’s start with the basics—power. If your air fryer isn’t turning on or heating up, the issue might be as simple as a loose plug or a faulty outlet.
First, check if the power cord is securely plugged into a working outlet. Try unplugging and plugging it back in, making sure it fits snugly. If the outlet is the problem, test it by plugging in another appliance. If that doesn’t work either, try a different socket.
A blown fuse or a tripped circuit breaker could also be to blame. If your air fryer suddenly stops working, check your home’s electrical panel. Reset the breaker if needed. If the fuse is blown, replacing it might solve the issue.
Faulty Heating Element
The heating element is the heart of your air fryer—it’s what generates the heat needed for cooking. If your air fryer turns on but doesn’t get hot, the heating element could be broken.
One sign of a faulty heating element is uneven cooking. If some parts of your food are getting warm while others stay cold, your element might not be working properly. Another clue? No heat at all, even though the fan is running.
Unfortunately, most air fryer heating elements aren’t user-replaceable. Some high-end models allow replacement, but for many, a malfunctioning heating element means the air fryer is done for. If your unit is still under warranty, reach out to the manufacturer. Otherwise, you might need to start shopping for a new one.
Malfunctioning Thermostat or Temperature Sensor
Air fryers rely on a thermostat to regulate temperature. If this component isn’t working, your air fryer may struggle to maintain heat or fail to heat up entirely.
A common sign of a faulty thermostat is inconsistent temperature—your food might take longer to cook, or the air fryer may shut off unexpectedly. Some models display an error code when the thermostat isn’t working.
To test if the thermostat is the issue, try adjusting the temperature setting. If your air fryer doesn’t respond or only works at certain temperatures, the sensor might be faulty. In most cases, this requires professional repair, but if the unit is still under warranty, the manufacturer may replace it.
Air Fryer Fan Not Working
Your air fryer doesn’t just rely on heat—it also needs proper airflow to cook food evenly. That’s where the fan comes in. If your air fryer’s fan isn’t working, the heat won’t circulate properly, making it seem like the unit isn’t heating at all.
One way to check is by listening. Normally, you should hear a low humming sound when the air fryer is running. If it’s silent, the fan might be stuck or broken.
Sometimes, food debris or grease buildup can block the fan. Try unplugging your air fryer and gently cleaning around the fan area. If the fan still doesn’t run, the motor may be defective, which usually requires a professional fix.
Overheating and Auto Shut-Off Issues
Many air fryers come with built-in safety features to prevent overheating. If your air fryer gets too hot, it may shut itself off to avoid damage.
Overheating can happen if the vents are blocked, preventing proper airflow. Make sure your air fryer has enough space around it—at least a few inches on all sides. Grease buildup inside the unit can also trap heat, so regular cleaning is essential.
If your air fryer shuts off randomly or won’t turn back on after use, let it cool down completely before trying again. Some models have a reset button; if yours does, press it and see if that helps. If overheating becomes a frequent issue, it could indicate a deeper problem, like a failing thermostat or circuit board.
Incorrect Settings or Cooking Mode
Sometimes, the issue isn’t with the air fryer itself but with the settings. If your air fryer isn’t heating up, double-check the temperature and time settings. It’s easy to accidentally set the temperature too low or forget to start the cooking process.
Some models require preheating before they start cooking at full heat. If yours does, let it preheat for a few minutes before adding food. Also, ensure you’re using the correct cooking mode—certain settings, like dehydration or low-temperature baking, may not produce the high heat needed for air frying.
Internal Wiring or Circuit Board Failure
If none of the above solutions work, the problem could be internal. Over time, electrical components can wear out or get damaged, leading to heating failures.
Signs of internal issues include a burnt smell, sparks, or the air fryer shutting off unexpectedly. If your unit has a display, error codes might appear when there’s an electrical fault.
Unfortunately, internal wiring and circuit board failures aren’t something you can fix at home. Unless you’re experienced with electronics, it’s best to contact the manufacturer or take the air fryer to a repair shop. If the cost of repair is high, replacing the unit might be the more practical option.
How to Fix an Air Fryer That Won’t Heat Up
Now that we’ve covered the possible reasons your air fryer isn’t heating up, let’s talk about solutions. Some issues are easy to fix at home, while others may require professional help. Here’s how to troubleshoot and get your air fryer working again.
Quick DIY Fixes
Before assuming the worst, try these simple fixes. Many heating problems are caused by minor issues that can be resolved in minutes.
1. Check the Power Source
Start with the basics. Make sure your air fryer is plugged in securely and that the outlet is working. If you suspect the outlet might be faulty, test it with another appliance. If the outlet isn’t delivering power, try plugging your air fryer into a different socket.
If the power cord looks damaged, avoid using the air fryer until you replace it. A frayed or broken cord can prevent electricity from reaching the unit, stopping it from heating up.
2. Reset the Air Fryer
Sometimes, all your air fryer needs is a reset. Unplug it, wait about 10 minutes, and then plug it back in. This can clear minor electrical glitches and restore normal function.
Some models have a dedicated reset button. If yours does, press it and see if that helps.
3. Clean the Heating Element and Fan
Grease, crumbs, and food particles can accumulate on the heating element and fan, blocking heat circulation. If your air fryer isn’t heating properly, turn it off, unplug it, and let it cool completely.
Then, remove the basket and use a soft brush or a damp cloth to clean the heating element. If there’s stubborn residue, a mixture of warm water and mild dish soap can help. For the fan, check for any blockages and gently wipe it down.
Regular cleaning not only keeps your air fryer working efficiently but also prevents overheating issues.
4. Adjust Temperature and Cooking Settings
It’s easy to overlook settings, especially if you’re rushing to cook. Double-check that the temperature and timer are set correctly. Some air fryers require preheating—if yours does, let it run for a few minutes before adding food.
If your air fryer has different cooking modes, ensure you’re using the right one. Dehydration or bake modes, for example, may not generate the same level of heat as the air frying function.
5. Let It Cool Down
If your air fryer overheats, it might shut off automatically as a safety precaution. If this happens, unplug it and let it cool down for at least 30 minutes before trying again.
Also, make sure the air fryer has enough space around it for proper ventilation. Keeping it too close to a wall or other appliances can cause overheating and performance issues.
If your air fryer continues shutting off randomly, there could be a problem with the thermostat or internal wiring, which may require professional repair.
When to Contact Customer Support or Replace the Unit
If none of the DIY fixes work, it’s time to consider whether professional help is needed or if you should replace your air fryer altogether.
Check Your Warranty
Most air fryers come with a one- to two-year warranty. If your unit is still under warranty, contact the manufacturer for a replacement or repair. They may offer troubleshooting assistance or a free repair service if the problem is covered.
Be sure to have your purchase receipt or order details ready when reaching out. Some brands require proof of purchase before providing support.
Is Repair Worth It?
If your air fryer is out of warranty, repairs can be costly, depending on the issue. A malfunctioning heating element, damaged thermostat, or internal wiring failure might require a professional technician, and repair costs can sometimes be as much as buying a new unit.
Here’s a quick comparison to help you decide:
| Issue | Can You Fix It at Home? | Repair Cost Estimate | Worth Repairing? |
| Power cord damage | Yes (replace cord) | Low | Yes |
| Blocked fan | Yes (clean it) | Free | Yes |
| Faulty thermostat | No | Medium | Maybe |
| Heating element failure | No | High | No |
| Circuit board damage | No | High | No |
If repairs cost more than 50% of the price of a new air fryer, replacing the unit is usually the smarter choice.
Signs It’s Time to Replace Your Air Fryer
If your air fryer has frequent issues, takes too long to heat up, or shuts off randomly, it may be nearing the end of its lifespan. Most air fryers last between three to five years with regular use.
Additionally, newer models come with better technology, more even heating, and smart features that make cooking easier. If your old air fryer is giving you constant trouble, it might be time for an upgrade.
Preventing Future Heating Issues
A well-maintained air fryer lasts longer and performs better. If you want to avoid dealing with heating issues in the future, a few simple habits can make a big difference. Here’s how to keep your air fryer in top shape.
Regular Cleaning and Maintenance
One of the biggest reasons air fryers stop heating properly is grease buildup. Over time, crumbs, oil splatters, and food residue can block the heating element or fan, affecting airflow and temperature control.
To prevent this, clean your air fryer after every use. Let it cool completely, then remove the basket and tray for washing. Wipe down the interior with a damp cloth and mild soap, focusing on the heating element. For stubborn grease, use a soft brush or a baking soda paste.
Also, check the fan regularly. If you see any stuck food particles, gently clean them to ensure proper air circulation.
Avoid Overloading the Air Fryer
Stuffing too much food into the basket can block airflow, causing uneven cooking and overheating. If your air fryer struggles to heat up, it may be working too hard to circulate hot air.
For best results, cook in batches if necessary. Leave some space between food pieces to allow proper air circulation. This not only ensures even cooking but also reduces strain on the heating system.
Use the Right Temperature and Settings
Using incorrect settings can cause unnecessary wear on your air fryer. Always double-check that you’re selecting the right temperature and cooking mode. Some models require preheating, while others don’t—so follow the manufacturer’s instructions to avoid overworking the appliance.
If your air fryer has a manual temperature dial, turn it gently to avoid damaging internal components. Digital models should be set correctly before starting to prevent overheating or temperature fluctuations.
Ensure Proper Ventilation
Air fryers need space to vent heat properly. If you place yours too close to a wall, inside a cabinet, or near other appliances, it may overheat and shut down.
Always leave a few inches of space around your air fryer when using it. If you notice that it’s getting too hot, move it to a more open area where it has better airflow.
Check the Power Source Regularly
A loose or damaged power cord can cause intermittent heating problems. Every few weeks, inspect the cord for fraying or signs of wear. If you notice any damage, replace it immediately.
It’s also a good idea to avoid plugging your air fryer into an overloaded power strip. Instead, use a dedicated outlet to ensure stable power flow, which helps prevent sudden shutdowns or heating failures.
Don’t Ignore Early Warning Signs
If your air fryer starts acting up—whether it’s taking longer to heat, shutting off randomly, or cooking food unevenly—don’t wait for it to stop working completely. Addressing minor issues early can prevent bigger problems down the road.
If your air fryer is still under warranty, reach out to the manufacturer if you notice unusual behavior. Catching small problems early can save you from having to buy a replacement sooner than necessary.
FAQs
Still have questions? Here are some quick answers to common concerns about air fryers not heating up.
Why is my air fryer turning on but not heating?
Your air fryer may have a faulty heating element, a broken thermostat, or a blocked fan preventing proper airflow. Check if the unit is clean, the settings are correct, and the fan is running. If the issue persists, the heating element or internal wiring may need repair.
Can I replace the heating element in my air fryer?
Most air fryers are not designed for user-replaceable heating elements. If your unit is under warranty, contact the manufacturer for a replacement. Otherwise, a repair may not be cost-effective, and buying a new air fryer could be the better option.
What should I do if my air fryer keeps shutting off?
This could be due to overheating, a faulty power cord, or a malfunctioning safety feature. Let the unit cool down, check for proper ventilation, and ensure the power cord is secure. If it continues shutting off randomly, there may be an internal electrical issue.
How do I reset my air fryer?
Unplug your air fryer and let it sit for about 10 minutes. Some models have a reset button—if yours does, press and hold it for a few seconds. Plug the unit back in and try using it again. A reset can sometimes fix minor electrical glitches.
Why is my air fryer taking longer to cook food?
A weak heating element, dirty fan, or blocked airflow can cause slower cooking times. Clean the heating element and fan, avoid overcrowding the basket, and ensure the temperature settings are correct. If the issue continues, the heating element may be wearing out.
Conclusion
A non-heating air fryer can be frustrating, but in most cases, the issue is fixable. Whether it’s a simple power problem, a dirty heating element, or a malfunctioning thermostat, troubleshooting the problem step by step can save you time and money.
Start with quick DIY fixes like checking the power source, cleaning the heating element, and resetting the unit. If that doesn’t work, look for signs of a faulty heating element, thermostat issues, or internal wiring problems. Some of these may require professional repair or even a full replacement, depending on the cost and warranty coverage.
To prevent future heating issues, clean your air fryer regularly, avoid overloading it, and make sure it has proper ventilation. Keeping an eye on early warning signs can also help you catch small problems before they turn into major ones.
If you’ve tried everything and your air fryer still won’t heat up, it might be time to contact customer support or invest in a new model. With the right care and maintenance, your next air fryer can last for years without trouble!
