Oven makes intermittent dinging noise - Samsung Flex-Duo

I made a simple and quick adjustment to my oven to resolve an annoying sound it was making. I had just purchased this oven about a year prior and almost immediately it began making a dinging noise every once in awhile when in use. It sounded like the convection fan was coming loose. But it ended up being very easy to cure.

[@Ransaid]

Thanks for the video, I going to have a look at mine today as it is making the same noise. Cheers

[@ghostwavewrider]

We have a problem with our fan making a louder noise. Is this model number NX58M6850SS?

[@paulk7895]

Thanks for the video! Is the opening on the fan cover should be pointing up or down? I took off my cover for the top fan and forgot to make a note which way the opening was. Thanks!

[@V0RT3X_CYCL0N3OLD]

duo elements

[@kendhay]

I did that. Told wife it was fixed. The next day the noise was back. I had to replace the motor $95.

[@giovannilim]

My fan also is hitting it and scraping metal. Did replacing the motor adjust the position of the fan or something?

[@chef6965]

Which motor did you buy? There seems to be two different part numbers for lower vs upper motor, and the schematic is unclear as to which is which.