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Ask ProShooter Your Own Question
ProShooter
ProShooter, Firearms Instructor
Category: Firearms
Satisfied Customers: 4055
Experience:  Certified Firearms Instructor and Glock Certified Armorer.
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I own a Sentry Safe Model S0409 ( has been discontinued).

Customer Question

I own a Sentry Safe Model S0409 ( has been discontinued). never locked the safe in all these years and tried to yesterday. there safe came with a combination but it won't let me unlock the safe. i thought we created our combo and that doesn't work nor am i sure the safe allows the suer to create their own. so, what am i doing wrong? instructions say start at ) and turn dial left and pass ) 3 times and then land on the first number of combo. then it says pass that first number 2 times and land on second number then pass that number 1 time and land on 3rd. i believe we have tried this but no luck. can you help
Submitted: 1 year ago.
Category: Firearms
Expert:  ProShooter replied 1 year ago.

Good afternoon,
Let me be sure that I understand- you have the original factory combination and you tried that?

Customer: replied 1 year ago.
But I may just be an idiot and not using the the dial properly.
Expert:  ProShooter replied 1 year ago.

Sorry...my computer froze. Let me check something on that model....

Customer: replied 1 year ago.
Ok
Expert:  ProShooter replied 1 year ago.

Sentry S0409 you said, right?

Customer: replied 1 year ago.
Correct
Expert:  ProShooter replied 1 year ago.

Ok..stand by please

Expert:  ProShooter replied 1 year ago.

Here's the instructions.....is this different than what you tried?

1. To unlock and open

Before dialing your combination, simply insert the key

(if equipped) in the lock and turn until the plunger

pops out. Remove key.

NOTE: The safe will lock if key lock cylinder is pressed

in with or without key.

A. Start the dial at zero.

B.

Turn the dial to the right. Make sure ZERO

passes the pointer at least THREE times. Then stop

at the first number of your combination.

C.

Turn the dial to the left. Stop the SECOND

time you reach the second number of your

combination.

D.

Turn the dial to the right. Stop the FIRST

time the pointer reaches the third number of your

combination.

Customer: replied 1 year ago.
i am heading home shortly and will contact you within the hour to see if i can get this sucker opened. back soon. thanks
Expert:  ProShooter replied 1 year ago.

Ok, please let me know....

Customer: replied 1 year ago.
i am am using the combination code provided by Sentry on the owners manual, correct?
Expert:  ProShooter replied 1 year ago.

Yes, correct

Customer: replied 1 year ago.
I had my wife try and she said it still won't open?
Expert:  ProShooter replied 1 year ago.

Following those same instructons?

Customer: replied 1 year ago.
Unlock plunger and remove key. Set dial at 0. Go right and pass 0 three time and land on first number of combo. Then go left and pass second number once then stop on it on second rotation then go right and stop on third number.Did I miss anything
Expert:  ProShooter replied 1 year ago.

Sounds like you got it correct

Customer: replied 1 year ago.
now what
Expert:  ProShooter replied 1 year ago.

I have to believe at this point that it is broken..

Expert:  ProShooter replied 1 year ago.

You may need to bring in a locksmith

Expert:  ProShooter replied 1 year ago.

Many (most) Sentry safes use some very poor crafted parts internally....like pot metal. Sometimes, they just get worn out.

Expert:  ProShooter replied 1 year ago.

Would you like for me to locate a locksmith for you?

Customer: replied 1 year ago.
sorry, just got off phone with Sentry. the manual you downloaded is not the original and in fact the instructions are. after unlocking plunger, you set dial to 0, then go left and pass first number in combo 2x and land on that number on third turn, then you go right and pass second number once and stop on it on second turn, the left and land on third number
Expert:  ProShooter replied 1 year ago.

Well, I'm glad that they gave you the new info. That set of instructions I got was from their own website....

Expert:  ProShooter replied 1 year ago.

I guess they never updated their website.

Customer: replied 1 year ago.
Who knows. But the original manual had it left right left. And the one you and I both downloaded from their site had it right left right
Customer: replied 1 year ago.
would love a great locksmith just in case. I didn't try the method they gave me since I'm not home and my wife left so just in case
Expert:  ProShooter replied 1 year ago.

Well, that's odd.. Hopefully the new sequence works!

Expert:  ProShooter replied 1 year ago.

What city and state are you in?

Customer: replied 1 year ago.
the new sequence worked. wife confirmed. we live in scottsdale, az
Expert:  ProShooter replied 1 year ago.

Ok then...so do you still want me to locate a locksmith since the safe works?

Customer: replied 1 year ago.
no, thanks
Expert:  ProShooter replied 1 year ago.

OK, well I'm glad that you were able to get into your safe. Anything else I can do for you today?

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