What to do
- Unplug it for 15 minutes
Then try again. That sometimes clears a one-off reading.
When it isn't worth fixing
If the code comes straight back, the sensor has failed. On most air fryers the repair costs more than the unit is worth.
- Check whether it's still under warranty. The maker or the shop may replace it for free.
- Note the model number (it's on a label on the underside) so you can compare like with like.
If you're replacing it
Compare a few models before you buy.
- A replacement air fryerSearch on Amazon
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Quick answers
What does the E1 error code mean on an air fryer?
A temperature sensor fault. Cosori's manual, for example, lists E1 as an open circuit in the temperature sensor.
Can I fix E1 on an air fryer myself?
Engineer only (not practical at home). Start with: unplug it for 15 minutes. If the code comes straight back, the sensor has failed. On most air fryers the repair costs more than the unit is worth.
Is E1 on an air fryer worth repairing?
Usually replace. Replace the fryer. On all but premium models the repair costs more than a new one.
About this code
Unbranded and less common appliances don't publish one shared code list, so this page gives the most common meaning across makers. Your manual is the final word, and the model number that finds it is on a label on the underside.
Last reviewed October 2026.