My sentry safe will not open after entering the code it reads "err"

To change the code on a Sentry Safe CSW3607, follow these steps:

1. Open the safe by entering the current code on the keypad.
2. Press and hold the "*" button on the keypad for three seconds. This will put the safe in programming mode.
3. Enter the current code on the keypad, followed by the new code you want to use.
4. Press the "#" button to save the new code.
5. Close the safe and test the new code to make sure it works.

It's important to note that the CSW3607 has a factory default code of "0000". If you have not changed the code from this default, you can simply enter the new code you want to use without going through the programming mode.

To reset the combination on a Sentry safe, open the door of the safe, delete the existing codes, press the PROG or P key and enter the factory code. Finally, enter a new five-digit number as per individual preference, which is the new user combination.
It is always prudent to reset the combination on a Sentry safe when the door is open because it prevents the user from being locked out. To open the Sentry safe door, type the five-digit factory code given in the owner's manual. This factory code cannot be altered.
To delete the existing codes on newer models of the safe as of 2015, press the P button. Then, type the factory code and follow it up by inputting "00000" into the safe. On older models of the Sentry safe, press the PROG button and type the factory code two times.
After deleting the existing codes, press the PROG or P key and then enter the factory code once again. Within five seconds, type a new five-digit number, which is the new user code. To verify if the user code is working, retype it and then close the door of the safe. The user code is the primary code for opening the safe, and users can reset it as often as they want too

Open your Sentry safe by typing the five-digit factory code (found in your owner's manual) on the keypad. It's always a good idea to change your combination while the safe is open, so that you don't inadvertently lock yourself out.

Delete any existing codes by pressing the "P" key and entering the factory code, followed by "00000." On older safes, press the "PROG" key and entering your factory code twice to delete old codes.

Press the "PROG" or "P" key again on your Sentry safe's keypad.

Enter your safe's five-digit factory code.

Enter a five-digit code of your choosing within 5 seconds. This is your user code. While the factory code cannot be changed, your user code can be changed as often as you like, and that should be your primary code to open the safe. Only you should know your safe's factory code.

• Open your Sentry safe by typing the five-digit factory code (found in your owner's manual) on the keypad. It's always a good idea to change your combination while the safe is open, so that you don't inadvertently lock yourself out.
• Delete any existing codes by pressing the "P" key and entering the factory code, followed by "00000." On older safes, press the "PROG" key and entering your factory code twice to delete old codes.
• Press the "PROG" or "P" key again on your Sentry safe's keypad.
• Enter your safe's five-digit factory code.
• Enter a five-digit code of your choosing within 5 seconds. This is your user code. While the factory code cannot be changed, your user code can be changed as often as you like, and that should be your primary code to open the safe. Only you should know your safe's factory code.
• Retype the user code to verify it is working, and then close the safe.

Change batteries and bad place to keep manual

http://callitout.com/quotes/index.php/kick-it-to-the-curb/55/sentry-fire-safe-wont-open-its-broken/

Its the most reazonable answer and it worked!!!!!!! dial the code and tap on the handle so it would get lose

I have 2 Sentry 1610 Safes. A fresh alkaline battery MAY open the safe once (maybe twice), and then the same problem. I have a variable DC power supply that I hook up to the battery terminals, set to 9 volts and increase the current until the keypad responds & the deadbolt releases. Sentry has no solution for this problem, as this model is too old & they have no parts or troubleshooting. If you know someone with a small DC Power Supply, you can get your safe open / closed.

Motorola IC #MC68HRC705 will not reset. Chip is most likely bad. Time to throw this safe out...Thanks for your answers. George

I finally ignored the poorly-written instructions for programming a personal code and simply entered the factory code first and then pressed the prog/enter code button.  The safe opened.  The instructions tell you to push the prog/enter code first and then enter the factory code or personal code to open the safe.  Wrong!  Do it my way should this problem happen to you.

Hello,

I am a Safe Specialist i have been reading some of your problems and this should help there is no code if you have lost yours only the default code for the model 1610 the default code is: 77,22,09,11,64 try that if you havent changed it and with this problem with people not getting the handle open with the green light happening i suspect this is a issue with the lock mechanism i have had many of the same problems with people bringing them in when you get you safe open it and where the lock is put some lubricate on the lock regulary as the lock sticks and wont open if you havent done this then you cannot get it open see you local safe specialist and tell them what i have said and they may or may not be able to get your safe open i hope this has helped Rob Safe Specialist World.