Find the Combination to Your Master Lock!
- Find the newest looking padlock you have. This will work with most master locks, but probably not the really old ones.
- Once you have at least the bottom half of the edge circle pried up, you should be able to slide the back panel off, so it looks like ...
- There should be a circular hole like in the middle of the picture where you can see the edge of a circular metal disk.
- Clear the lock by spinning the dial clockwise a few times. Once it is cleared, look through the hole in the back.
- Now look through the hole in the back again. Through the notch in the metal disk, you should be able to see another metal disk.
- Again, through the two notches you lined up, you should see a third metal disk. ...
- There you have it. Slip the back back on, pry the edges back to where they were with the screwdriver or by pushing it on a hard surface.
Full Answer
How do you open a combination Master Lock?
Method 1 Method 1 of 2: When You Don't Know Your Master Lock's Serial Number
- Turn the dial at least three rotations clockwise first, just to make sure it is clear. Turn the lock's dial clockwise to zero.
- Apply pressure on the shackle, which is the curved handle at the top of the padlock. Turn the dial clockwise (CW) slowly as you press the shackle.
- Find the first sticking point. ...
How do you unlock a Master Lock?
How do you unlock a 3 digit combination Master Lock? Turn the lock until the numbers read right-side-up. Roll the left-most dial until the first number of your combination lines up with the scored hash mark just to the left of the dial.
How many combinations are there in Master Lock?
- Find your lock's serial number.
- Print out the Lost Combination Form (PDF).
- Have the form notarized by a Notary Public to prove you are the owner of the lock. You can include up to 6 combinations on one notarized form.
- Submit your form to: Master Lock Warehouse 24 North Free Port Drive Nogales, AZ 85621
How to unlock a Master Lock?
Things You'll Need
- Scrap paper
- Pencil
- Calculator
How do you unlock a Master Lock if you forgot the combination?
Submit a Lost Combination FormFind your lock's serial number.Print out the Lost Combination Form (PDF).Have the form notarized by a Notary Public to prove you are the owner of the lock. You can include up to 6 combinations on one notarized form.Submit your form to: Master Lock Warehouse. 24 North Free Port Drive.
What is the factory set code for Master Lock?
0000The Master 5401 comes factory-set to 0000. To change the code, input your 0000 and open the unit up. To change the combination, push the Reset button across and up. Now select any 4-digit code of your choice.
How do you crack a 4 digit Master Lock?
1:083:56So here's how it works you're gonna stick this thin strip of metal in between both. I mean thatMoreSo here's how it works you're gonna stick this thin strip of metal in between both. I mean that little crack right next to the wheel. And it's not going to go in far every time.
How do you unlock a 3 digit Master Lock?
0:293:56It is usually set to a code one zero zero now the one is just there just to keep it locked. It'sMoreIt is usually set to a code one zero zero now the one is just there just to keep it locked. It's actually the code it comes with is the zero zero zero. And.
I've lost or forgotten the combination to my Master Lock lock. What can I do?
Does your Master Lock lock have a serial number? If it doesn't, we won't be able to help you find your combination because we don't have a record o...
I lost the combination to my Master Lock Set-Your-Own Combination lock. Can you help me reset it?
Unfortunately no. You cannot reset this lock without knowing the current combination. You'll likely need to purchase a new lock.
I accidentally reset the combination on my Master Lock resettable combination lock. Now I don't know...
Unfortunately, you cannot reset this lock without knowing the current combination. You'll likely need to purchase a new lock.
I've lost the reset tool for changing the combination on my lock. How can I get a new one?
As a courtesy, our customer solutions group can issue you a replacement tool free of charge. You will need to supply the model number or an image o...
How can I retrieve my lost combination when my Master Lock lock is attached to a bike, cabinet, lock...
We will not provide lost combinations if the lock is attached to anything.
I'm unable to get a legible photocopy of my lock for the Lost Combination Form. What should I do?
Try lightening the copy as much as possible. The most important thing is that we can see that the lock is not attached to something.
How do I set the combination on my Master Lock 5400D / 5401D Key Safe?
To set or reset the combination on your Master Lock 5400D / 5401D Key Safe: Open the compartment door by entering the combination. The factory-set...
How do I set the combination on my 5422D / 5423D Push Button Lock Box?
To set or reset the combination on your 5422D / 5423D Push Button Lock Box:Open the lock box by entering the combination. If you're setting the com...
How do I set the combination on my 5424D / 5425D Spare Key Storage Safe?
To set or reset the combination on your 5424D / 5425D Spare Key Storage Safe: Open the compartment door by entering the combination. The factory-se...
How do I set the combination on my Master Lock 5406D Spare Key Storage Safe?
To set or reset the combination on your Master Lock 5406D Spare Key Storage Safe: Open the compartment door by entering the combination. The factor...
What happens if my lock does not have a serial number?
If your combination lock does not provide a serial number, there is no documentation on which combination your lock may have . Unfortunately, this means that looking for documentation or old packaging may be the only way to recover your combination.
Can you release a master lock combination?
It’s important to note that Master Lock will not release combinations to anybody other than authorized employees who can vouch that your lock is in hand, present, and free standing. Now that you have access to your combination, we recommend you store it in a safe place.
Lost Combinations
I've lost or forgotten the combination to my Master Lock lock. What can I do?
Resetting the Combination on your Key Safe, Mini Safe, & Portable Safes
How do I set the combination on my Master Lock 5400D / 5401D Key Safe?
Resetting your Combination Lock
How do I set or reset the combination on my 175 / 176 / 177 / 178 Master Lock Set-Your-Own Combination Lock?
2. Clear the Lock
The thumb rule for cracking any lock is to establish a standard point from which you can launch your cracking process. When it comes to the master lock, the starting point is clearing the lock. To clear the lock, you should start by spinning the dial a minimum of three or four times, ensuring you pass the zero mark every time.
3. Crack the 3rd Number in the Combination
After clearing the lock in the cracking procedure, the next step is to look for the 3rd number of your combination. This may sound a little bit odd. You could be wondering why not start by cracking the first number in the combination.
4. Find the 1st Sticking Point
While rotating the lock’s dial in the anticlockwise direction as per the step above, you will find yourself reaching a point where you cannot rotate the dial freely. You will notice that the dial is stuck in a groove between 2 numbers.
5. Find the 2nd Sticking Point
Having found the first sticking point, our next objective is to get the second one. To achieve this, you have to start by releasing the shackle tension and then turning the dial slightly clockwise past the 1st sticking point, 6 or 6.5 in our example above.
6. Find the Rest of the Sticking Points
Having obtained two of the twelve sticking points, you need to look for the remaining ten by repeating the same procedure to crack the 3rd number in the combination. Ensure that you record all the sticking points as you had done with the first two.
7. Crack the 1st Number in the Combination
As aforementioned, cracking the other numbers leaves you with ten possibilities. To begin with, you have to divide the distinct number or the third number by four. In our case, it is dividing 29 by four. When you have divided, your concern shall be the remainder which is 1.
8. Crack the 2nd Number in the Combination
Having cracked the first number, you should be able to crack the 2nd number. To crack the 2nd number of your combination, you go back and check the remainder you used in the above step. In our case, the remainder was one. You are supposed to add two to one (1+2).
How to make a master lock work?
The following steps will work for a Master lock. It will take a little time, but you will be pleased when that lock pops open. Turn the dial of the combination look clockwise until you reach zero. If you would like, you can do this three times just to be safe.
How to get a lock to stick to two?
Pull down on the lock as you do this to put pressure on the shackle, or pull up on the shackle with your hand. If the dial sticks, turn it to two then try again. Note the point where the dial sticks and will not turn any more. Write this number down on a piece of paper. Add a half to the number.
What is the third number of a combination?
Look at the list again, and if one stands out, circle it. For example, if the numbers are 8, 28, and 37, then 37 is the number you should circle as it doesn't have an 8 in it. The 37 is the third number of the combination.
What to do if you don't know the combination of a master lock?
If you don't know the combination to a Master Lock combination lock, you have a few options. If your lock is attached to something, you can break the lock, call a locksmith or use a shim. However, these options could put a dent in your wallet. Sometimes, your cheapest option is to figure out the combination.
How to crack a master lock?
To crack a Master Lock combination lock, download a lost combination form on the Master Lock website. Then, fill out the form and pay to have it notarized. Once you've completed the form, mail it to the Master Lock warehouse along with a photo of the lock and the lock's serial number.
How to turn lock combination to right?
If you know the code, place the lock so the combination dial faces you. Then, turn the combination to the right three times but on the third time, stop at your first digit of the code. Then, turn the dial left one complete turn, passing the first digit and stopping at the second digit of your code.
Can you crack a lock if you don't know the serial number?
However, don't let that discourage you. If you don't know the serial number, then you can significantly narrow down the number of possible combinations to crack your lock (Method 1). If you know the serial number, you can request the combination directly from Master Lock (Method 2).