Air Fryer Not Heating Up: Troubleshoot Guide to Get Back to Crispy Delights

Are you having trouble with your air fryer not heating up? The modern-day kitchen conundrum can leave your taste buds in a lurch, longing for perfectly crispy treats. But fear not; this comprehensive guide will walk you through the steps to troubleshoot your stubborn appliance, ensuring you’re back to frying in no time!

Reasons for an air fryer not heating up

There are various reasons why your air fryer may not be heating up properly. Some common causes include power supply issues, a malfunctioning heating element, a defective thermostat, or even some good old-fashioned cleaning and maintenance. Here are some possible causes of your air fryer not heating up

  • Power Source Issues: Ensure the air fryer is plugged in properly and the outlet functions. Sometimes, a tripped circuit breaker or a blown fuse can prevent the appliance from heating up.
  • Faulty Heating Element: The heating element may have burned out or be defective, a common reason for air fryers not heating. This requires professional inspection or replacement.
  • Thermal Fuse Problems: Air fryers have thermal fuses that can blow if the appliance overheats. If the fuse is damaged, it must be replaced to restore functionality.
  • Temperature Control Malfunction: The thermostat that controls the temperature inside the air fryer might be faulty, leading to heating issues. It may not signal the heating element to start heating.
  • Timer Issues: Some air fryers will not heat up if the timer is not set correctly or is malfunctioning. Check to ensure that the timer is operational.
  • Improper Assembly: If the air fryer’s components, such as the basket or pan, are not assembled correctly, safety switches may prevent the appliance from heating.
  • Ventilation Blockage: Blocked or clogged ventilation can cause the air fryer to overheat and automatically shut off to prevent damage.
  • Internal Wiring: Loose or damaged internal wiring can disrupt the flow of electricity to the heating element. This typically requires a technician’s help to repair.
  • Usage Errors: Not following the manufacturer’s instructions for operation can lead to improper usage, affecting the air fryer’s ability to heat up.
  • Manufacturing Defect: In some cases, if none of the above apply, the air fryer may have a manufacturing defect that prevents it from heating properly.
  • Defective thermostat: The thermostat regulates the temperature in your air fryer. If it is damaged or malfunctioning, it can cause heating issues. Consult with the manufacturer on how to replace the thermostat.
  • Door Switch Issues: The door switch is a safety feature that shuts off the heating element when the door is opened. It can prevent the air fryer from heating up if it is not functioning correctly. Check for any loose connections or damage and replace if necessary.
  • Overuse or Aging: Like any appliance, constant use can wear down an air fryer and cause components to malfunction. If your air fryer is older or used frequently, it may be time for a replacement.
  • Resetting the Air Fryer: If none of these issues are the cause, try resetting your Air Fryer by unplugging it for a few minutes and plugging it back in. This can refresh the system and solve minor technical glitches.
  • Cleaning and Maintenance: Proper cleaning and maintenance of your air fryer can prevent heating issues. Over time, built-up residue on the heating element or clogged vents can impede proper functioning.

Air fryers are a convenient and healthier option for cooking crispy treats. Still, they can experience technical issues like any appliance by understanding the potential causes and following these troubleshooting guides.

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Air Fryer Not Heating Up : Solutions for Fixing

If your air fryer is not heating up, there could be several reasons for this issue. Some of these issues can be easily fixed at home, while others may require the help of a professional technician or manufacturer’s customer service. This guide will discuss the common causes and possible solutions for an air fryer not heating up.

1. Check the Power Source and Cord Connections

Before you dive into more intricate troubleshooting, start with the most essential step: ensuring your air fryer is correctly connected to a power source. A loose or unplugged cord might seem too obvious, but it’s a surprisingly common oversight that can lead to unnecessary worry.


  • Double-check all the connections, ensuring the power cord is firmly plugged in at the fryer and outlet.
  • If your outlet has a switch, make sure it’s turned on.

2. Reset or Replace Fuses

If you’re confident the power source isn’t the issue, the problem could lie within the fryer’s internal circuits. Air fryers are equipped with fuses to protect against electrical surges; occasionally, these fuses can trip or blow, causing a loss of power.


  • Refer to your user manual for instructions on accessing and checking the fuse.
  • If the fuse is visibly damaged, it will need to be replaced. Contact the manufacturer for a suitable replacement part and instructions on installation.

3. Ensure Correct Temperature Setting

An improperly set or malfunctioning thermostat can cause your air fryer to heat at a lower-than-desired temperature. If you select a specific temperature but the display or the actual heat doesn’t align, there could be an issue with the temperature controls.


  • Always select the correct temperature for the recipe you’re following.
  • Test the temperature using a reliable kitchen thermometer. If there’s a significant difference, it’s likely the thermostat needs recalibration or replacement.

4. Heating Element

A damaged or worn-out heating element is one of the most common reasons an air fryer stops heating. A faulty component can manifest as a complete heat loss or temperature fluctuations.


  • To check if the heating element is the culprit, inspect it visually for any signs of damage, such as corrosion or breakage.
  • If you spot any issues, replacing the heating element is essential. More advanced repair, so if you need clarification, contact the manufacturer or a certified repair technician for guidance.

5. Air Circulation

Proper air circulation is vital for an air fryer to cook effectively. If the air vents or the fan that circulates the air are clogged or damaged, it can lead to insufficient heat distribution.


  • Regularly clean the air vents and fan blades with a soft brush or cloth. Clear any dust, food particles, or grease buildup that could hinder airflow.
  • Ensure your fryer has enough space around it to allow for proper ventilation.

6. Timer Malfunction

A timer that doesn’t count down can give the impression that the air fryer isn’t heating when, in fact, the temperature may be acceptable, but the device isn’t running for the intended duration.


  • Test the timer by setting it to a few minutes and observing if it counts down correctly.
  • If the timer does not work as intended, you may need to reset or replace it. Unplug the air fryer, wait a few minutes, then plug it back in. If the problem persists, it’s time to contact the manufacturer for further guidance.

7. Overcrowding

Overloading the air fryer basket can cause the food to steam rather than fry, which may lead to a drop in temperature and a less-than-desirable outcome.


  • Make sure to cook in batches that allow enough space for the air to circulate the food.
  • If you’re cooking for a larger group, consider investing in a larger air fryer model that can handle more significant portions.

8. Preheating

Some users need to remember the preheating step, which is crucial for the air fryer to reach the desired cooking temperature before you add your food. Failure to preheat can result in longer cooking times and unevenly cooked dishes.


  • Always preheat your air fryer for the recommended time in the user manual or as directed by the recipe you’re following.
  • Confirm that preheating is complete by waiting for the indicator light or sound signal if your air fryer has this feature.

9. Food Moisture

Excessive moisture in the air fryer, whether from high-sugar content or not patting dry, can prevent food from crisping and cause lower temperatures.


  • Pat your food dry with a paper towel before placing it in the air fryer.
  • If you’re cooking foods high in moisture, consider using a paper liner or perforated parchment paper to help absorb extra liquid.

10. Manufacturer Support

If you’ve tried all the above solutions and your air fryer still refuses to heat up, it may be time to contact the professionals. Air fryers are complex appliances with sensitive electronics, and attempting more in-depth repairs without the right expertise can be risky.


To receive further assistance, contact the manufacturer’s customer service department. They can often provide a diagnosis over the phone or recommend qualified service technicians in your area.

Conducting thorough maintenance on your air fryer and understanding how it works are the best preventative measures. Embrace the troubleshooting process, and in no time, you’ll be back in the kitchen, savoring the delights of a fully functional air fryer. Happy cooking!

Final Verdict

When your air fryer is not heating up, it’s easy to feel fried with frustration. However, with these troubleshooting tips and maintenance advice, you’ll be well-equipped to handle the heat — or the lack thereof. Sometimes, a helping hand from a professional is the fastest route to recovery for your beloved kitchen companion.

FAQs of Air Fryer is Not Heating Up

Q: Can I replace my air fryer’s heating element myself?

A: Unless you have experience with appliance repair, it’s best to leave the replacement of heating elements to professionals due to the complexity and safety concerns.

Q: What should I do if my air fryer starts producing smoke?

A: If your air fryer starts smoking, unplug it immediately. Smoke can indicate a severe electrical issue or be due to food residue burning off. Clean thoroughly and inspect for damage before using again.

Q: When should I clean my air fryer?

A: Clean your air fryer after each use to prevent buildup affecting its heating capability—deep clean every few weeks, depending on usage.

Q: Are there any foods I shouldn’t cook in an air fryer?

A: Avoid placing overly wet batters, cheese, or overly seasoned items directly into the air fryer, as they can create a mess and potentially damage the unit.

Q: Is there a reset button on air fryers?

A: Some models may have a reset button or a specific procedure to reset the system. Consult your air fryer’s user manual for model-specific instructions.

Q: Can a faulty heating element be the cause of the problem?

A: Yes, if the air fryer has power but is not heating up, the heating element might be broken or faulty. There is usually a need for professional repair or replacement in this situation.

Q: Are there any troubleshooting tips I can try at home?

A: Besides ensuring the air fryer is connected to power and set to the correct temperature, you can also check for any obstructions or excessive buildup of food residues that could affect its functionality.

Q: Will using an extension cord affect my air fryer’s ability to heat up?

A: It’s best to plug the air fryer directly into the wall outlet. Using an extension cord can sometimes cause a voltage drop that affects performance.

Q: When is it time to replace my air fryer instead of repairing it?

A: Consider replacing your air fryer if it is old, repairs are costly, or if newer models offer significantly better features and efficiency that justify the investment.