Question about Sentry Fireproof Safe

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I can't open my safe I have the right combination & key but it's in low batteryit's SENTRY A3807; Z-476052* Pls help me.

I had opened it few days ago & now it's in low battery, I need help to open it, please.

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  • Sentry Expert
  • 170 Answers

Battery replacement instructions bottom of this page.

Posted on Nov 21, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: sentry safe V530

may have been 8 bucks , but it's 12 bucks now.

check out www.sentrysafe.com ,

look on right side menu for "keys" and/or "combination" .

Posted on Jul 09, 2008

  • 1 Answer

SOURCE: know combination, but cannot open sentry safe 1250

Make sure you are working the dial properly for this type of safe. With the door lever fully counter clockwise, turn the dial clockwise a couple turns to start. It should turn quietly. Then turn the dial counterclockwise (LEFT) to the first number in the combination. Now turn the dial clockwise (RIGHT) a full turn passing the first number again, and additionally clockwise to the second number. Then turn the dial counter clockwise from the second number directly to the third number. Try to open with a sharp movement of the door lever clockwise. If this does not work the first time try adding or subtracting ONE to each number in the combination in case the mechanism is worn. If it still does not work it is time for a drill and a power saw to cut the thing open!

Posted on Mar 15, 2009

  • 1 Answer

SOURCE: cannot open sentry safe, model 1230, have combo

cannot open sentry safe, model 1230, do not have combination

Posted on Mar 15, 2010

SOURCE: unable to open electronic safe

Locksmiths say this is how to install sentry safe batteries
slide open the battery cover located just below the keypad.
Insert a paper clip or pen point into the small hole in the cover. Push in while sliding cover to the right. Disconnect and remove the battery holder. Insert the 4-batteries as indicated.
reconnect the connector and put back the battery holder. Slide the cover back in place.
How do I insert the batteries on my advanced electronic lock safe? On the newer model Fireproof Sentry Safes my locksmith recommended me To install batteries,
turn the electronic lock case to the right and remove. Insert four new batteries as indicated, replace the electronic lock case and turn to the left to reassemble.

Posted on Aug 08, 2010

SOURCE: can not open my safe, sentry 3750

Sounds like all you might need is a new Sentry Safe battery pack to hold the batteries. As these sometimes short out from leaking batteries.

Posted on Aug 09, 2010

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How do you open a sentry 1250 combination safe? I have the number


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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).
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How do I open the combination lock to my sentry home safe?


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).
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Pull the handle down to crack the sentry safe open.

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I have a sentry safe with a key and combination lock i have misplaced my combination now what


Sentry Safe lost combination. First, find your sentry floor safe's Serial Number. The Serial Number is printed on the small label on the right side of safe, on paper tag near bottom hinge, below the cover plate or you can look behind the handle with a mirror. Just note your model # and the serial #.
Sentry Safes express combination research is fast with a next day Service. The email is sent the next business day with the sentry safe combination and opening instructions. Although there is a service charge it's still cheaper then locksmith drilling a Sentry Fireproof Safe open.

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Sentry safe S3877 have key and know combination but battery dead


Use paperclip to push in pin size hole below keyboard and then slide panel to right. Battery box is right there. Replace batteries and then was already to accept code.

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1 Answer

I am unable to open my Sentry Safe S410 with my key. Do I also need a combination?


A good locksmith should be able to help you It sounds like your Sentry Safe is double locked. Now you need the key and combination to open the safe.

Aug 13, 2008 | Sentry Fireproof Safe

1 Answer

Need assistance opening my Sentry 1250 safe. I have combination but do I start at 0 and pass the first number then stop 2nd time around at first number then go straight to the other 2 numbers?


Locksmith instructions for sentry safes
on how to dial open sentry fire safes.
NOTE: 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 sentry safe open.

May 06, 2008 | Sentry Fireproof Safe

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