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I am unable to open my safe. I have key but apparently the
I am unable to open my safe. I have key but apparently the battery inside is dead and non-responsive for code entry. … read more
John
John
Engineer and electronic enthusiast for more than 12 years.
Bachelor's Degree
247 satisfied customers
My batteries went dead in my sentry afe. My sentry safe and
My sentry safe and the batteries went dead in taking it appart the mechanism fell to pieces so I have to put it back together is it posible to do this I also know if I had amagnet stromg enough I coud open It is that so … read more
Wes
Wes
Owner/Consultant
Bachelor's Degree
2,695 satisfied customers
I cannot open my sentry safe. I tried so many times and it
Hi,I cannot open my sentry safe. I tried so many times and it started beeping for sometime and now the keypad doesn't,t show light any more. The last time I opened was August 2016 . … read more
Wes
Wes
Owner/Consultant
Bachelor's Degree
2,695 satisfied customers
I have a sentry safe -all mechanical - I know the code, I
Second opinion] Hi Steve, I have a sentry safe -all mechanical - I know the code, I have the key, but it is not opening. … read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
6,012 satisfied customers
I am trying to open our Sentry Safe, I put fresh batteries
I am trying to open our Sentry Safe, I put fresh batteries in but when I key in the combination, all I get in the red light that says error. I even double checked the combination to be sure I was ente… read more
Harry
Harry
2,803 satisfied customers
I have a Sentry safe with key pad combination lock. The
I have a Sentry safe with key pad combination lock. The batteries are dead but can't remember how to get face off to change the batteries … read more
Nathan
Nathan
Engineer
Bachelors of Science
39,316 satisfied customers
I have a sentry safe,got it a guy time ago,the batteries are
I have a sentry safe,got it a guy long time ago,the batteries are dead and he doesn't have the combination any more,I don't want to ruin it,I want to use it been sitting in the barn for a few years ,t… read more
Nathan
Nathan
Engineer
Bachelors of Science
39,316 satisfied customers
The battery in the safe is dead. We tried the key and still
The battery in the safe is dead. We tried the key and still cannot get it to open.Need your help. … read more
Steve G.
Steve G.
Engineer
2,379 satisfied customers
An empty used Sentry Safe was given to us just recently by a
An empty used Sentry Safe was given to us just recently by a friend; however, the giver has lost her combination. How do we open the safe? We can send you serial #'s, etc. our names and the previous o… read more
Steve G.
Steve G.
Engineer
2,379 satisfied customers
I just came back from vacation on 11/19/2016. I normally
I just came back from vacation on 11/19/2016. I normally don't lock my safe because I am always home. I am 82 years old and have been on hospice care since 12/24/2015. Today I tried to unlock my safe … read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
6,012 satisfied customers
the only thing that I can provide isthe model number on the
the only thing that I can provide is the model number on the safe and we need the key because the batteries are dead. I think that putting the batteries on the inside of the door is stupid and so is l… read more
Expert
Expert
We have a Sentry S0810 Safe secured in a closet. It has a
We have a Sentry S0810 Safe secured in a closet. It has a battery, key, and combination lock. I just tried to open it both ways. Apparently the battery died since it was last opened. How do I get this… read more
Expert
Expert
We bought a sentry safe and never locked it. It was moved
We bought a sentry safe and never locked it. It was moved and now someone spun the lock and all the safe purchase papers and combination are inside the safe with our important papers and we can't get … read more
Expert
Expert
I have a model OA3810 which will not open. I get an ERR message
I have a model OA3810 which will not open. I get an ERR message when I enter our code. I have replaced batteries. I cannot find book so do not have serial number or reprogram info. XXXXX XXXXX [email protected]… read more
Expert
Expert
I have a small sentry safe that can not be opened after I installed
I have a small sentry safe that can not be opened after I installed a new 9 volt battery . the number I had programmed 13975 does no longer open the safe. and it comes up error unfortunately we have t… read more
Expert
Expert
I have a keyless electronic Sentry safe . The battery went
I have a keyless electronic Sentry safe . The battery went dead and I cannot open it. I cannot find the directions. I am fairly certain the batteries went in on the outside but I cannot figure out how… read more
Expert
Expert
we have a Sentry Model V360 and serial # XXXXX The battery
we have a Sentry Model V360 and serial # XXXXX The battery went dead, we replaced it and now cannot get into it using our code. Any thoughts as to how we can use the key and get in? Bill Graham… read more
Expert
Expert
I have an Sentry Electronic Safe which I cannot open because
I have an Sentry Electronic Safe which I cannot open because there is no electronics that are working. I suspect a dead battery since rhere no lights. What can I do to replace the battery and check th… read more
Andy Travis
Andy Travis
Bachelor's Degree
25 satisfied customers
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Meet the Experts:

Steve G.

Steve G.

Engineer

2,379 satisfied customers

VP of electronic repair company. Audio nut since 1974. Home Theater advisor. Vinyl holdout!

John

John

Engineer and electronic enthusiast for more than 12 years.

247 satisfied customers

I am here to help you!

Russell H.

Russell H.

Service Tech

6,012 satisfied customers

8+ years of professional experience

Louie

Louie

Technician

4,763 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Greg A.

Greg A.

Engineer

1,507 satisfied customers

Engineer / Consultant

Rod

Rod

Systems Engineer

1,319 satisfied customers

FCC Commercial Licenses, BSCS, ASEET, 40+years Electronics & Communication Systems

Martin

Martin

Engineer

1,256 satisfied customers

16 years, include works in aluminium plant, industrial machinery, military weapons, programming

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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