Question about Master Lock 5400d: Portable Select Access Key Storage Lock

3 Answers

Lock won't open

The combination to the 5400D is not opening the lock

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  • 2 more comments 
  • chickenfoot Dec 24, 2007

    The tab on the left will slide down on any combo but wont open.

  • Anonymous Apr 29, 2008

    I CANT CHANGE THE COMBINATION WONT RESET

  • Anonymous Jun 08, 2008

    combination is not working, how do I open the lock?

  • sirus1980 Jun 25, 2008

    my combonation is not working

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3 Answers

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Have 5400D Master Lock. Know combination, but it will not open. Can someone help me?

Posted on Jul 13, 2010

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How can I reset the master lock

Posted on Mar 05, 2008

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Its very easy

Posted on Aug 11, 2015

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Posted on Jan 02, 2017

Richie_asg1
  • 1036 Answers

SOURCE: Master Lock 5400D (Please help!)

Try lubricating with a silicone spray oil, And work the cover to try and free it.

If this has no effect, I suggest you visit a locksmith, that should be able to identify the fault.
If it is unable to be easily reached/ rectified, you may need to remove the cover entirely, or purchase a replacement lock.

Hope this helps.

Posted on Jun 12, 2008

Richie_asg1
  • 1036 Answers

SOURCE: Master lock 5400D lock box

Master lock offer a free replacement service for locks which develop a mechanical defect during normal use.
See their website here for further information -

http://www.masterlock.com/customerservice/

If the lock has been forced or tampered with to cause this problem, then a replacement is needed.

Hope this helps

Posted on Jun 12, 2008

Obertelli
  • 3006 Answers

SOURCE: how do you open a

It would appear that you made a mistake in setting your new combination on your Master Lock 5400d and did not register the combination at Masterlockvault.com. The only way to open your lock is by using the correct combination. There is no other way. Most mistakes are normally one or two digits out, so you may wish to try variations on what you thought you set.

Apart from that you can either try every possible combination or you will need to contact the manufacturer. But they cannot assist you if the lock does not have a serial number (they recently stopped applying serial numbers for greater security) and they will not assist if the lock is already secured to anything. There are a number of other hurdles as well, click here for details. Given that they state that you will have to wait four to six weeks for an answer, it's going to be far quicker to just try every possible combination.

Posted on Jul 14, 2011

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1 Answer

How to reset combination


To set a new combination:
The initial combination is set at the
factory to 0-0-0-0
1. Open the compartment door
2. Push the reset lever left and down.
The lever remains in this position
3. Rotate dials to your desired combination
4. Push the reset lever, up and right, back
to the original position
5. Close the key storage compartment door
6. Scramble the combination dials to lock
the door and conceal your combination
7. Close the shutter door

Sep 03, 2014 | Master Lock 5400d: Portable Select Access...

1 Answer

How do you open a master lock model 5400d if you forgot the combination


It would appear that you made a mistake in setting your new combination on your Master Lock 5400d and did not register the combination at Masterlockvault.com. The only way to open your lock is by using the correct combination. There is no other way. Most mistakes are normally one or two digits out, so you may wish to try variations on what you thought you set.

Apart from that you can either try every possible combination or you will need to contact the manufacturer. But they cannot assist you if the lock does not have a serial number (they recently stopped applying serial numbers for greater security) and they will not assist if the lock is already secured to anything. There are a number of other hurdles as well, click here for details. Given that they state that you will have to wait four to six weeks for an answer, it's going to be far quicker to just try every possible combination.

Jul 14, 2011 | Master Lock 5400d: Portable Select Access...

1 Answer

I have a master lock its a lockbox model 5400d i forgot the combination and my car keys are in it


You have forgotten the combination on your Master Lock 5400d and did it appears that you did not register the combination at Masterlockvault.com. The only way to open your lock is by using the correct combination. There is no other way. Most mistakes are normally one or two digits out, so you may wish to try variations on what you thought you set.

Apart from that you can either try every possible combination or you will need to contact the manufacturer. But they cannot assist you if the lock does not have a serial number (they recently stopped applying serial numbers for greater security) and they will not assist if the lock is already secured to anything as is currently the case. There are a number of other hurdles as well, click here for details. Given that they state that you will have to wait four to six weeks for an answer, it's going to be far quicker to just try every possible combination.

Jul 14, 2011 | Master Lock 5400d: Portable Select Access...

1 Answer

The combination our Master Lock Co Combination Lock Box Part # 5401D was changed by accident. How do we find the combination to open the box?


No joke... trial and error... its not going to be fun, but work out a system so you don't cover the same number twice.

Aug 30, 2010 | Master Lock 5400d: Portable Select Access...

1 Answer

My 5400D is open and I forgot the four digit code can you help me re-set it???


The only way to open your lock is by using the correct combination. There is no other way.

You can either try every possible combination or you will need to contact the manufacturer. But they cannot assist you if the lock does not have a serial number (they recently stopped applying serial numbers for greater security) and they will not assist if the lock is already secured to anything. There are a number of other hurdles as well, click here for details. Given that they state that you will have to wait four to six weeks for an answer, it's going to be far quicker to just try every possible combination.

Aug 13, 2010 | Master Lock 5400d: Portable Select Access...

1 Answer

Master Lock 5400D Key Storage Combination Lock box i reset it combination a couple of days ago and it worked fine until today. Now it won't open with the new combination. How can I get in to it without...


Two solutions: (if the box is closed and it is attached to something)


1. Contact Masterlock.com and fill out the form, get it notarized and send it in for the combination to unlock it based on the S/N which is on the lock.(http://www.masterlock.com/faq/LostCombinations/). Good luck on this since Masterlock will end up finding something that will prevent them from giving you the combination. Its quite frustrating and NOT worth the trouble.

2. Go to home depot. Buy a 24in bolt cutter ($22) cut the stem of the lock. and replace with a new lock that you can buy from home depot for $ 29.00. If you have a key that is inside the lock box that you really need, You will now need to drill out the combinations piece by piece and the door will pop open or send the lock back to Masterlock. They will retrieve the key for you and send it back.

Jun 25, 2010 | Master Lock 5400d: Portable Select Access...

3 Answers

I forgot my locker combination to a lock and and i cant open it.


how do i get the box open . the box is 5400D portable key storage i'm a realtor

Sep 17, 2008 | Master Lock 5400d: Portable Select Access...

1 Answer

Master Lock 5400D (Please help!)


Try lubricating with a silicone spray oil, And work the cover to try and free it.

If this has no effect, I suggest you visit a locksmith, that should be able to identify the fault.
If it is unable to be easily reached/ rectified, you may need to remove the cover entirely, or purchase a replacement lock.

Hope this helps.

Jun 03, 2008 | Master Lock 5400d: Portable Select Access...

1 Answer

Master lock 5400D lock box


Master lock offer a free replacement service for locks which develop a mechanical defect during normal use.
See their website here for further information -

http://www.masterlock.com/customerservice/

If the lock has been forced or tampered with to cause this problem, then a replacement is needed.

Hope this helps

Nov 14, 2007 | Master Lock 5400d: Portable Select Access...

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