If the key doesn't seem to open the Sentry Safe, it may have been turned in the wrong direction. Insert the Sentry key in the keyhole and turn it counter-clockwise as opposed to clockwise.
What do you do if your Sentry Safe won't open?
Turn your back to the safe, and kick the door, hard, a few times. Be sure that you do not kick the keypad or the handle. This will help loosen the bolt work. Next, pull the handle in the opposite direction than you normally do and enter the code.
Why does my Sentry Safe won't open?
Here are the most common reasons a Sentry Safe won't open. Try these before calling Sentry Safe Customer Service or a safe locksmith. The battery is dead. The bolts of the safe are jammed or misaligned.