HOME SETUP TIMER
How long should a Samsung refrigerator stay unplugged to reset?
Quick answer
Use 5 minutes as the starting point.
Before restoring power during a reset
Start a reminder timer
5 minutes
Timer has not started.
When it rings: Reconnect power and watch for normal operation.
What the source actually says
Samsung says to leave it unpowered for about five minutes so electrical charge clears.
Reset only when Samsung guidance calls for it; repeated resets can hide a fault.
Source
Read the manufacturer guidance. Model instructions override this general page.