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John, Engineer and electronic enthusiast for more than 12 years.
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Electronic lock stopped working. It buzzes after the combo

Customer Question

Electronic lock stopped working. It buzzes after the combo is entered but will not unlock.
I have a MSW3517 model.
Submitted: 1 year ago.
Category: Consumer Electronics
Expert:  SpecialistMichael replied 1 year ago.

Hi Billie, your issue has been passed to me. My name is ***** ***** resident safe specialist here on JustAnswer.

Can you tell me the last time you were able to successfully open the safe?

Customer: replied 1 year ago.
Last week sometime.
Expert:  SpecialistMichael replied 1 year ago.

Do you have the safe near you?

We can begin working on some of the common issues that can seemingly randomly happen to these safes

Customer: replied 1 year ago.
No, thanks
Expert:  SpecialistMichael replied 1 year ago.

Alright, how would you like me to assist you today?

Customer: replied 1 year ago.
Ihave the safe right here. The no thanks was to the "call me". Let's try something
Customer: replied 1 year ago.
Still here waiting for some guidance before I take the sledge hammer to this piece of ****
Customer: replied 1 year ago.
Impatience is setting in. do you have some options for me to try? If not, stop the charge to my credit card because I'm not happy yet and i will never buy another sentry safe. Some response would be appreciated.
Expert:  SpecialistMichael replied 1 year ago.

My apologies, I mistook the "no thanks" as a declination of assistance.

I will do my best to make you happy. Read this entirely first, there is an order that is best followed.

My first suggestion, which is very likely occurring is that the door itself or the seal is physically just stuck to the frame. I need you to perhaps some inward pressure on the door(as if to close it tighter) then enter in your combination code. Reason for this is sometimes the door seals can expand and prevent the locking mechanism from disengaging.

Before doing these steps, try taking a rubber mallet, and tapping with moderate force around the outside of the edges a few times. Then follow the aforementioned steps.

Sometimes, you may need assistance from another person. When you apply inward pressure to the door and enter the code, you should get the associated "correct" sound you are used to hearing, now you can depress the handle - now at this point if the door is tough to open a thin pry bar in the edge may provide a bit of assistance.

So short cliffs notes version of this common issue resolution is as follows:

Rubbet mallet around the door edge a few times(be careful of the combo pad)
Inward pressure(a knee while kneeling, or a second set of hands)
Enter code while pressing in on door, when beep alerts you, handle should depress.

Report back to me with your results. And you may need to try this a couple of times, slight changes in moisture in the air and even mild temperature changes can cause this - its common.

Customer: replied 1 year ago.
Nope. Didn't work. My husband was helping me. After the code is entered I hear a buzzing sound, not the usually sound when it unlocks.
Customer: replied 1 year ago.
The lock is simply not disengaging.
Expert:  SpecialistMichael replied 1 year ago.

Are you absolutely certain the batteries(alkaline recommended) are being used and are fresh?

Expert:  SpecialistMichael replied 1 year ago.

The buzzing noise, while I can't hear it is likely and indication that power is reaching the solenoid.

Try a bit more striking on the face of the door. Perhaps directing the force down a 2x4 with the mallet. The actuators often get stuck.

Customer: replied 1 year ago.
Batteries are fresh. It appears to be an electronic problem because the lock will not disengage. I'm giving up. Your site said satisfaction guaranteed or $$ back. Looks like $$ back.
Maybe I'll sell whacks at it and raise $$ for charity.