You must use the same card to open and close (lock) the safe. If the display is showing 'E-CARD' and beeps 3 times, this means that the same card to open the safe was not used to close the safe. If your display is showing 'E', this can indicate there has been an error in the code you have entered, the batteries are low and need to be changed, or the swipeable card, if that's what you're using, has been damaged in some way and the magnetic strip is scratched or otherwise not being read. In addition, an auxiliary remote battery pack will provide back up access in case the currently installed batteries are not strong enough to power the electric lock or the card-swipe reader. Your safe also comes with a master override key, in the event of a forgotten code or lost/stolen magnetic card.You will need to remove the key cap on the front of the door right under the keypad, to the right, in order to use the override key. On the other hand, if you have forgotten the code for your safe, it might be wise to get recovery codes.You have the choice of using a programmable electronic code or a magnetic stripped card to open it (any credit card). If you have a safe with a dead battery without a key, it might be wise to get replacement keys, especially if you have things you need inside the safe. How to Get Recovery Codes or Replacement Keys The best choice is to contact your local locksmith or get recovery codes from the company. Suppose you cannot remember the combination and do a manual unlock for your old Sentry safe. Once you move the dial, using the key alone is not sufficient to unlock it. Opening a Sentry safe with key and no combination might be impossible on electronic and combination safes. Note that the steps to open a Sentry safe lock box with key might be different for safes with a left-right-left combination style. The handle will be pulled down easily and smoothly if you entered the correct combination. In a clockwise manner, dial the third number of the combination and stop immediately as you reach it.

Dial the third digits of the combination.

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