To open a sentry safe with combination you can follow the below steps.
Sentry safe locked with door open.
What can sometimes happen if locked when the door is open is that the rods are able to travel a lot further than they do normally and can get stuck.
When you enter the code and the light turns green grab the handle next to the keypad and rotate it downward so the bolts come undone.
You could try a little graphite into the mechanics of the bolts to see if you can free them.
Other safes including most gun safes on.
It should be noted that this kind of sentry safe is designed specifically to protect against fire damage not burglars with rare earth magnets in socks.
You could thry a light tap with a hammer as you unlock it.
Try looking for a small plastic button on the hinge side of the door push it in after the combo it is a deadlock type of feature.
If you don t open the door within 4 seconds then the lock will engage again and you ll have to retype the code.
Open the door of the safe and ensure those shipping screws have been removed if any find the combination code on the user manual usually there is a sticker on the user manual if you are using a dual key combination model of.