Have had a CSW 3813 Sentry Safe for several years. Have had no problems until lately. Key #2090 opens the lock, we punch in combination that we have always used, then punch enter. The response is, the number 1 lights up in the middle of the screen but door will not open. Sometimes we get the ERR message. the second number on the safe is AS 773290*. Can you please help? Can't locate manual. Thank you in advance for your help. Julian W. Johnson.
Sounds like you need a new battery replacement.To replace the battery pack, unscrew the screw below the electronic lock case, turn the lock case to the right then remove it.You can have the online manual from the link below, just make sure you have installed the adobe acrobat reader on your computer to view this file cause its pdf format.http://www.sentrysafe.com/pdfs/OwnersManuals/503662.pdfAdditional
info can be found from this electronic safe sentry manualhttp://www.sentrysafe.com/pdfs/OwnersManuals/505748.pdfIf
the problem leads to acquiring the right
combination for your safe.... call the attention of Sentry Safe
ShopYou must call (800) 828-1438 for combination retrievals.or
a notarized letter stating you are the owner of the safe, personal
information, model and serial number of your safe and must indicate the
method on how you will receive the combination.See further
details from this linkhttp://www.sentrysafeshop.com/Lost-Combination-Sentry-Safe-Combination-p/lost%20combination.htm
Please post back for any clarifications and let me know so I
can help you further. Read More At : Fireproof Safe...