What to do
- Unplug it for 15 minutes
Then try again, in case it was a one-off reading.
When it isn't worth fixing
If the code comes straight back, the sensor or its wiring has failed. Cosori's advice is to contact its customer support, and on most air fryers a repair costs more than a new one.
Before you replace it
- 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.
Good to know
- Air fryer makers use these codes less consistently than other appliances. If your manual says something different, the manual wins.
If you're replacing it
Compare a few models before you buy.
- A replacement air fryerSearch on Amazon
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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 September 2026.