Lock malfunctions making safe unuseable
593792
We purchased this safe to store backup tapes. Many people of differing technical skill level open and close the safe throughout the week. After 3-4 months the safe became hard to open. Only by sitting on the lid and jiggling the button until it eventually comes free are we able to open the safe. Because of this we cannot close the lid completely with confidence that it will open again. I notice that older folks have a very hard time getting this safe open even when it was new. It takes physical coordination to press on the lid and pull on the lock at the same time.

Further inspection shows the locking seat appears to have cut a divot into the latch (latch being the moving part of the lock and seat being where the latch rests when locked). This divot gets hung up and refuses to release. It takes considerable patience to jiggle the handle with a knee on the lid to release the lock. An experiment proved that filing the latch smooth helps to resolve the problem, but the divot reappears after only a few weeks time. I assume that the more material that is removed, the less effective the safe.

The purpose of the lock is obvious as it seals the safe from heat and water. If the lock is not working correctly then the safe is not sealed. Because of this the safe is not worth much to a business if it must be left open in order to be used.

A different type of locking mechanism would be an obvious improvement. Something like the ones you find on tackle boxes would most likely solve the problem.
Another solution would be to make the latch out of a slightly harder metal. Also make the seat have a solid landing so it cannot cut into the latch.

I do not recommend the purchase of this safe to anyone.

On the plus side the safe is a good size and all other features work well. We have not tested the fireproof or water proof abilities but by the level of seal one may guess that it effectively does its job.
3305711
Great Paperweight, Terrible combination lock. This has got to be the worst lock in history. I hope that this reviews deter people from buying this awful device. MasterLock should recall this locks and refund or exchange for something that works
3333015
With in two weeks this lock stopped working. It appears the lock is jammed and cannot be used. I have tried to reset the combination with no luck.
2620127
I bought two of these locks. Both of them have accidentally had the combo reset. Not even sure how we did it.  The reset button must have moved when we were moving the numbers randomly.  They are both unusable now.
3544601
I've only had this lock a few months and now I can't get it to close. The combination simply won't work and I can't get it to reset.
965415
I used the lock once and upon removing it and attempting to relock it, the key no longer worked. It's completely stuck in an unusable state after one use and my bikes are left unprotected.
3262415
Nice lock, but either brakes or looses it's code easily. I got two non working locks in a two to three month period.
Poorly designed code change
403646
Simply put, these locks don't work. They do latch if you push the pins hard enough, but you can pull them apart fairly easily and re-latch them. You can basically use them over and over, yet they are supposed to be single use devices. They are also supposed to be tamper-evident, so it is obvious when they have been removed. This totally defeats the purpose.
1939
I'm not sure if I got a defective one or something but the locking mechanism on my safe seems to have a hard time locking and unlocking at the correct time. the thing sometimes opens up when its supposed to be locked! Also the lock doesn't always disengage when I put the code in. I find myself having to use the key a lot to get this stupid thing to work and even then sometimes when I lock it with the key the knob still turns it open even if the key hole is in the "locked" position.  Will be looking for a refund or a replacement.
373961
At first I thought everything was OK electronic keypad works fine even the key lock worked good.. Then one day I was fiddling with turning left to right after I had close the safe and heard latch unlatched itself just by wiggling back-and-forth a few times I would not recommend this product if you had valuables inside of it so it's basically useless
390905
I've had this for about a year and have never been able to get the "auto lock"function working consistently.

The lock will actually place itself into the locked position after 30 seconds, but will beep at the same interval to remind you the door's not locked!

So annoying.
2049969
constantly BREAKING ON MY BROTHER AND MY BABYLOCK CAUSING HUGE PROBLEMS
4442371
This lock is bitter sweet.  I specifically liked the lime color to match my luggage and if it wasn't for this, would have bought another brand to begin with. The lock would normally be very functional and lightweight enough but there's been issues.  I've had 3 of them so far. The first lock set with my new chosen combination no problem.  The second one wouldn't set and got stuck (couldn't move the "J" hook bar up or down) so I had to return it.  The third one was set just fine and I was already using it on vacation, but somewhere in using it and flipping the "J" open and close, it RESET itself to a different combination and I could no longer use it.  This ended up being very bad for me as I really needed it hopping from plane to plane and train to train all over Europe.  I ended up just throwing it away with  the loudest thud that you could hear in the airport garbage can.  Design flaw!  I think it's better to have a combination lock where the bar pushes in like a carabiner instead of the hook that come up and down and swings around!
3113135
I bought this safe specifically because it has a combination lock along with a backup key.  I don't want to have to carry the key along with me all the time to access the safe.

And yet, I do; because the combination lock failed to unlock the safe after about the first week or so.  I reset the combination many times.  it is the right combination and the  light even flashes , but the  lock does not undo.

Meanwhile it would be easy to pry into and it is rather cumbersome for the backseat.  I suggest you look elsewhere.
2285215
Absolute piece of rubbish. Set and reset this lock a few times as per instructions, which, were pretty simple to follow. Depress button B, rotate the numbers to your desired combination, release button B. Combination will take effect after roation of the number number dials after releasing button B. Lock still opened on ANY combination. Safeskies, unsafe locks. Absolute rubbish!
4857799
One of the locks is missing an inner piece - it won't lock & I needed it this weekend
3527107
The lock does not scramble, it gets stuck on password. So basically doesn't lock and is useless.