Hi Chula,
A balanced cold temperature is what our fridge needs. Let us help you with the refrigerator temperature.
Here is a link to help you with the freezer. Please follow the steps and click the hyperlinks for further help.
Samsung freezer is too cold.
https://www.samsung.com/us/support/troubleshooting/TSG01109866/
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
When you message us, please provide us with this reference number 1147178716 to help our team pull up your information.
Have a great day.
^Aloe