Updated 19 July 2026 · Written by Daniel Wright
If the fan runs but the air fryer does not get hot, the heating element or its safety cutoff is usually the cause. Start with the simple checks: make sure the basket is fully closed, the temperature is actually set, and the unit has cooled from any earlier overheat trip before testing again.
Confirm the basket is seated and a cooking temperature is set, then let the unit cool fully in case an overheat cutoff tripped. If the fan runs but no heat returns after cooling, the heating element has likely failed.
Why an Air Fryer Stops Heating
The basket is not fully closed
The safety switch that starts the fan is often separate from the one that powers the element. The fan can run while the heat stays off if the drawer is not seated all the way. Push it firmly shut.
An overheat cutoff has tripped
If the unit recently overheated, a thermal fuse or cutoff may have opened to protect it. It sometimes needs to cool completely, or the fuse may have blown permanently and needs replacing.
No temperature is set
On some digital models the fan runs on a keep-warm or fan-only setting with no heat. Make sure you have selected an actual cooking temperature, not just a timer.
The heating element has failed
A burned-out element is the most common hard fault. If the fan runs, a temperature is set, and the unit is cool but still will not heat, the element or its wiring is the likely culprit.
How to Diagnose It
- Set a clear cooking temperature such as 400 F and a few minutes on the timer.
- Push the basket fully in and listen for the element clicking on.
- If nothing heats, unplug and let it cool for at least an hour in case an overheat cutoff tripped.
- Clean any grease from the element and vents, which can cause false overheat trips.
- Test again on a different wall outlet to rule out a power fault.
- If the fan still runs with no heat, the element or thermal fuse has likely failed.
Common Mistakes to Avoid
- Leaving the unit on a fan-only or keep-warm setting with no temperature selected.
- Testing again immediately without letting an overheated unit cool fully.
- Overlooking a half-closed drawer, which lets the fan run but not the heat.
When to Consider a Replacement
If the fan runs, a temperature is set, and the unit is cool but still produces no heat, the heating element or thermal fuse has failed. These repairs are often uneconomical on lower-cost units, so it is usually better to replace it. See our guide to the best air fryers for dependable models, or the smaller picks in the best small air fryers guide if you want a compact unit.
Frequently Asked Questions
Why does my air fryer fan work but no heat?
The fan and heating element are usually on separate circuits. If the fan runs but there is no heat, a tripped overheat cutoff or a failed heating element is the most likely cause.
Can an air fryer reset itself after overheating?
Often yes. Many units have a resettable thermal cutoff that restores heat once the appliance has fully cooled, so leave it unplugged for an hour before testing.
How do I know if my air fryer element is burnt out?
If the fan runs, a temperature is set, and the cool unit still will not heat after checking the outlet and drawer, a burnt-out element is the most likely fault.
