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.

If your Sentry Supreme 5330 safe is not opening, there could be a few possible reasons why:

1. Combination Error: If you are using a combination to open the safe, make sure that you are entering the correct combination. If you have forgotten the combination, you will need to contact Sentry Safe customer service to get assistance on how to recover or reset your combination.
2. Dead Batteries: If you have an electronic lock on your safe, the batteries may be dead. Replace the batteries and try again.
3. Jammed Bolts: The locking bolts may be jammed due to incorrect operation or a mechanical problem. Try tapping the safe door gently with a rubber mallet to loosen the bolts and then try to open it.
4. Mechanical Malfunction: If the safe still does not open, there may be a mechanical malfunction. In this case, you will need to contact a professional safe technician to diagnose and repair the problem.

Note: If you have lost your key, you will need to contact Sentry Safe customer service to order a replacement key.

Safes with dials are a little more complicated. NEVER close the door after changing the combination. Practice the opening sequence with the door open. If you did it wrong, you can reset and try again

https://www.google.com/search?q=Sentry+Safe+1250.+change+the+combination

https://www.justanswer.com/home-security-systems/9mqjg-lost-combination-key-sentry-so417-safe.html


Lost combination and key to our Sentry SO417 safe What do

How To: Open A Locked Sentry Safe If You Forgot ...

? 5:21
https://www.youtube.com/watch?v=Mr8QrvVAtuI
Jul 15, 2014 - Uploaded by TipsNNTricks
I show you How To Open A Locked Sentry Safe If You ForgotThe Combination Or Loss Your Digital Code Or Lossed Your Key. The Sentry Safe ...

' Sentry® Safe ' Lost Your Combination

https://www.sentrysafe.com/.../Lost_Your_Combination

Sentry GroupCombo Recovery. What you'll need: Model Number; Safe Serial Number; Notarized Statement of Ownership. Step 1. Safe Info. Step 2. Notary Form. Step 3

opening a electronic safe forgotten the lock code ready to ...

www.instructables.com/.../OPENING-A-ELECTRONIC-SAF...

InstructablesJul 6, 2009 - I HAVE A SAFE GAURD COMPANIES SAFE I HAVE FORGOTTEN THE LOCK CODE TO OPEN IT. THEIR IS NO ALTERNATIVE OF KEY ...

How to Crack a Safe (with Pictures) - wikiHow

contact sentry safes customer support or your local locksmith
if in Fort Lauderdale area try

You could try

operatingguides.com

if you need a user manual
or

servicemanuals.co.uk

if you want the schematics etc

We've used them in the past and found them very good.

Also if it is not listed then ask via the link and they
will probably be able to get it for you.

Locksmiths agree If your safe doesn't have a key, skip Step 3.
Turn the dial to zero.
Insert your sentry safe key and turn it until the plunger pops out.
Turn the dial to the left (counterclockwise) three times to the first number of the combination (pass the first number of your combination two times, stopping on it the third time).
Turn the dial to the right (clockwise) two times to the second number of the combination (pass your second number once, stopping on it the second time).
Turn the dial to the left to the last number (stop the first time on your last number).
Pull the handle down; cracking the Fireproof Sentry Safe open.

I have a sentry safe csw 4747 Idont no tha combination
how do I do the safe a key and electronic key pad

Locksmiths advise these Opening instructions for sentry fireproof electronic security safes. Insert the tubular sentry key into the lock to the left of the key pad. Turn the key all the way to the right until the plunger pops out. Press the five-digit factory code. The green Proceed light will come on. Pull the handle down; to crack the sentry door open.

sentry safes opening instructions for 4 # combo locks
Turn the dial to zero.
Turn the dial to the left (counterclockwise) four times to the first number of the combination (pass the first number of your combination three times, stopping on it the third time).
Turn the dial to the right (clockwise) three times to the second number of the combination (pass your second number twice, stopping on it the third time).
Turn the dial to the left (counterclockwise) two times to the third number of the combination (pass the third number of your combination one time, stopping on it the second time).
Turn the dial to the right to the last number (stop the first time on your last number).
Pull the handle down to crack the sentry safe open.

3 Digit Combination Lock
31-10-31

1. NOTE: If your safe DOES NOT have a key, skip Step 3.
   
2. Turn the dial to zero.
   
3. Insert your key and turn it until the plunger pops out.
   
4. Turn the dial to the left (counterclockwise) three times to the first number of the combination (pass the first number of your combination two times, stopping on it the third time).
   
5. Turn the dial to the right (clockwise) two times to the second number of the combination (pass your second number once, stopping on it the second time).
   
6. Turn the dial to the left to the last number (stop the first time on your last number).
   
7. Pull the handle down; the door should open.

If this still does not open the safe, refer to the following page for additional different types of Sentry Safe models:

http://www.sentrysafeshop.com/kb_results.asp?ID=15