I saw a news release about this
but can't find the ref. now.
it seems you take a picture of your possible
defective unit , and then you are sent a new one.
and get to get rid of the old one , because you done send it back.
a couple of connections occasionally over heated and started a fire.
found this :
https://www.nytimes.com/2023/02/24/business/cosori-air-fryer-recall.html
2 million being recalled !