A:Answer Hi KMac.
Thank you for reaching out regarding your Samsung - Flex Duo™ 6.3 cu. ft. Front Control Slide-in Dual Fuel Range with Smart Dial, Air Fry & WiFi, Fingerprint Resistant - Black stainless steel on how to use the air fry on this unit. Regarding your concern, this feature uses hot air for crispier and healthier frozen or fresh foods without or less oil than normal convection modes. For best results, use this mode in single oven mode and place the Air Fry tray in position 3. The temperature can be set between 350 °F and 500 °F. Preheating is not necessary for this model. Follow recipe or package directions for set temperature, time, or quantity.
I suggest you check this link to your user manual for assistance. Please go to page 33.
https://downloadcenter.samsung.com/content/UM/202103/20210308175728522/NY63T8751SS_AA_DG68-01218A-04_EN.pdf
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Reference Ticket Number: 1144686495
Thank you for being a valued customer of Samsung. Have a great day.
^Camille