I had the same problem with my Sentry S3877. I found the exact 4-battery replacement (with snap attachment on top!) at an online electronics.retailer, but had to purchase a lot of three. I don't need the other two, so I'll sell them for just $6 each to the first two folks to contact me mark@irregardless.net. Oh, by the way, once the batteries went dead, you lost your combination! When you pop the new battery compartment in, the factory default combination will be in effect. That default combination is in your user's manual. I'm currently searching frantically for mine!

Gee, how could I have misplaced it. I just had it in my hands when I purchased the safe 10 years ago!!! Anyone know the default combo for the S3877? ---- Mark Sep 15, 2008 .

To reset your Sentry Safe combination, you will need the original facotry combination. Rochester, N.Y.-based Sentry Safe has been making security containers in the United States since the 1930s. Whether you have forgotten your safe combination, misplaced it or simply want to change the combination for security reasons, resetting a Sentry Safe combination takes just a few minutes of reprogramming, provided you have the original factory code. Instructions 1.

Open the safe by typing the -, four- or five-digit factory code or the user code you set into the keypad. Empire Earth Art Of Conquest Download Itax. If you cannot remember the code, call the Sentry Safe customer service number at 800-828-1438.

Manual For Sentry Safe S3877 Default Code In Icd. How yo change a Passcode for a Sentrysafe. How to reset code on an electronic safe. Easiest Way to open a Sentry. SENTRY S3877 SAFE WE HAD TO REPLACE THE BATTERIES AND WHEN WE DID. Changing the code on my Sentry Safe S3877. That default combination is in your user's manual. My Sentry S3877 safe. My Sentry S3877 safe, will not unlock. I enter my code and the. View But if you did try the code on the top of the manual and it's not. Lost Key Replacement. Express key requests are not an option at this time. We apologize for any inconvenience. Tax exempt customers should contact.