The Samsung BF1N4T021 Oven has some known problems that occur often. Here are some easy to do solutions for the problems or error codes your Samsung might be giving you.
The oven light is faulty.
The fan continues to run after the oven has cooled down.
There is a fault in the internal electrical circuit connection.
There was a power failure.
The oven may not be switched on, the clock may not be set, or a household fuse may have blown.
The oven has continued operating at set temperature for a prolonged time.