How to Reset a Combination Lock
The reset point on a combination padlock isn't always where you'd expect it. Different models use the shackle, a button, a switch or a separate tool, so the instructions need to match the lock.
This guide covers first-time setup and the most common reset methods. It also explains what to do when a code has been forgotten or a reset doesn't work. Separate sections cover Squire and ABUS models, followed by advice on code storage and replacement.
Estimated reading time: 10 minutes
Contents
- How to reset a combination padlock in four steps
- Before you reset or change the combination
- How to set a combination padlock for the first time
- How to change a combination padlock code
- Squire and Defender combination padlock reset methods
- How to reset a Squire combination padlock
- How to reset an ABUS combination padlock
- What to do if you've forgotten a combination padlock code
- Why won't the combination padlock work after resetting it?
- How to choose and store a secure combination code
- When to replace a combination padlock
- Combination padlock FAQs
How to reset a combination padlock in four steps
The exact control differs by model, but most resettable combination padlocks follow the four-part process below to reset them.
Follow these steps while the padlock remains open.
1
Open the padlock using the current combination.
2
Move the shackle, button, switch or tool into its reset position.
3
Turn the number wheels to the new code.
4
Return the reset mechanism to its normal position and test the code twice before closing the lock.
Use this as an overview. The detailed methods below explain what to do with each reset mechanism.
The number of wheels doesn't decide the reset method. A three-digit padlock and a four-digit padlock may use the same process, while two four-digit models can work differently. The design of the reset mechanism matters more than the number of digits.
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The design of the reset mechanism matters more than the number of digits.
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A closed lock with an unknown code needs a different approach.
Skip to the forgotten-code guidance section, as most models can't be reset while locked.
Before you reset or change the combination
Keep the padlock open until the new combination has worked twice. If the code doesn't register, repeat the reset process without closing the shackle.
Find the model number on the body or packaging and check the manufacturer's instructions. Similar-looking locks often use different controls, so keep the current combination and original reset tool to hand.
For a clearer explanation of the wheels and internal locking parts, read our guide to how combiation locks work.
How to set a combination padlock for the first time
A new resettable padlock comes with a factory-set combination. Many four-wheel models use 0000, but follow the starting code in the manual or on the packaging.
To set the first personal code:
1
Line up the factory combination and open the lock.
2
Identify the reset method shown in the instructions.
3
Put the shackle or reset control into re-coding mode.
4
Turn the wheels to the chosen code.
5
Return the reset mechanism to its normal position.
6
Leave the shackle open and test the new combination twice.
Once the code works reliably, record it somewhere secure and scramble the wheels before closing the padlock.
How to change a combination padlock code
First, identify the mechanism on the lock. The table below points to the correct instructions.
| Reset mechanism | What it looks like |
|---|---|
| Twist-and-press shackle | The open shackle rotates and pushes into the body |
| Recode button | A small button close to the number wheels |
| Sliding switch or lever | A movable control on the lock body |
| Separate reset tool | A marked hole or shaped slot for the supplied tool |
Reset mechanism
Twist-and-press shackle
What it looks like
The open shackle rotates and pushes into the body
Reset mechanism
Recode button
What it looks like
A small button close to the number wheels
Reset mechanism
Sliding switch or lever
What it looks like
A movable control on the lock body
Reset mechanism
Separate reset tool
What it looks like
A marked hole or shaped slot for the supplied tool
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If none of these matches,
check the model instructions rather than pressing into an unmarked hole or forcing the shackle.
Resetting a padlock using the shackle
This method is common on open-shackle padlocks. The shackle usually turns through 90 or 180 degrees, depending on the model.
- Enter the current code and open the shackle.
- Turn it to the reset angle shown on the lock or in its manual.
- Press the shackle into the body and hold it there.
- Move the wheels to the new combination.
- Lift the shackle and return it to its normal position.
- Scramble the wheels, then enter the new code while the lock remains open.
- Repeat the test before fitting the padlock.
The shackle should move with normal hand pressure. If it doesn't, check the reset angle or confirm that the lock uses this method.
Resetting a padlock using a button or switch
A button or sliding switch puts the open lock into recoding mode. Keep the control pressed or moved across while choosing the new numbers.
- Line up the existing code and open the padlock.
- Hold the recode button down, or move the switch to its reset position.
- Turn the wheels to the new combination.
- Release the button or return the switch.
- Keep the shackle open while checking the new code twice.
A control that won't move often means the lock isn't fully open or the existing code is slightly out of line.
Resetting a padlock using a reset tool
Some locks come with a pin or shaped tool for changing the code. Use the supplied tool where possible. A screwdriver may damage the slot or press the wrong part of the mechanism.
- Open the padlock with its current code.
- Insert the reset tool into the marked opening.
- Move or hold it as shown in the instructions.
- Set the wheels to the new combination.
- Return the tool to its starting position before removing it.
- Test the new code while the padlock remains open.
Store the reset tool with the manual so it is easy to find next time.
Squire and Defender combination padlock reset methods
The instruction sheets supplied for these models show which reset control to use. Set and test the code before fitting the padlock to the item it will secure. Centre the dials on the indicator line and store the confirmed code somewhere secure.
For some of the popular models, you can find the model name on the lock and use the matching summary below. Test the new combination while the lock remains open.
| Brand and model | Reset type | Quick summary | PDF instructions |
|---|---|---|---|
| Squire CP40, CP50 and CP60, 2018 onwards | Recode button | Open the lock on its current code. Hold the button while setting the wheels, release it, then hide the code without pulling on the lock. | PDF link |
| Squire CP All Terrain | Button and locking screw | Open the lock and loosen the recoding screw inside the shackle opening. Hold the underside button while setting the wheels, then release it and retighten the screw gently. | PDF link |
| Squire DCL1 Combi, 2024 onwards | Rear control | Open the lock and turn the rear control 90 degrees anticlockwise. Set the code on the indicator line, then return the control 90 degrees clockwise. | PDF link |
| Squire Warrior Combi | Reset pin | Open the lock and align the reset openings precisely. Insert the supplied pin, turn it as shown in the guide and set the new code before removing it. | PDF link |
| Squire Vulcan Combi | Button and locking screw | Open the lock and move the locking screw to its recoding position. Hold the button while setting the wheels, release it, then return the screw without pulling on the lock. | PDF link |
| Squire SHCB65, SHCB75 and CBW85 | Side control | Open the lock and use the side control and recoding screw in the order shown. Set the wheels while the control is in its 90-degree recoding position. | PDF link |
| Defender DFCOMBI20, DFCOMBI30 and DFCOMBI40 | Shackle reset | Open the lock and use the side control and recoding screw in the order shown. Set the wheels while the control is in its 90-degree recoding position. | PDF link |
Brand and model
Squire CP40, CP50 and CP60, 2018 onwards
Reset type
Recode button
Quick summary
Open the lock on its current code. Hold the button while setting the wheels, release it, then hide the code without pulling on the lock.
PDF instructions
Brand and model
Squire CP All Terrain
Reset type
Button and locking screw
Quick summary
Open the lock and loosen the recoding screw inside the shackle opening. Hold the underside button while setting the wheels, then release it and retighten the screw gently.
PDF instructions
PDF link
Brand and model
Squire DCL1 Combi, 2024 onwards
Reset type
Rear control
Quick summary
Open the lock and turn the rear control 90 degrees anticlockwise. Set the code on the indicator line, then return the control 90 degrees clockwise.
PDF instructions
Brand and model
Squire Warrior Combi
Reset type
Reset pin
Quick summary
Open the lock and align the reset openings precisely. Insert the supplied pin, turn it as shown in the guide and set the new code before removing it.
PDF instructions
Brand and model
Squire Vulcan Combi
Reset type
Button and locking screw
Quick summary
Open the lock and move the locking screw to its recoding position. Hold the button while setting the wheels, release it, then return the screw without pulling on the lock.
PDF instructions
Brand and model
Squire SHCB65, SHCB75 and CBW85
Reset type
Side control
Quick summary
Open the lock and use the side control and recoding screw in the order shown. Set the wheels while the control is in its 90-degree recoding position.
PDF instructions
Brand and model
Defender DFCOMBI20, DFCOMBI30 and DFCOMBI40
Reset type
Shackle reset
Quick summary
Open the lock and use the side control and recoding screw in the order shown. Set the wheels while the control is in its 90-degree recoding position.
PDF instructions
Use each row as a quick reference. The linked PDF should remain the final check for the exact model and production version.
How to reset a Squire combination padlock
The correct Squire combination padlock change-code process depends on the model. Check the name printed on the lock body before starting.
Squire publishes recoding instructions by model, including individual guidance within the CP range. Open the padlock using its existing code, then follow the control and movement shown for that model. Keep the shackle open while testing the new combination.
Match the instructions to the model number rather than copying the process for a similar-looking lock. Squire states that its combination products don't have an overriding code for forgotten combinations.
To replace the current lock, compare the four-wheel Squire CP50 combination padlock with the five-wheel Squire CP60 combination padlock.
How to reset an ABUS combination padlock
ABUS uses different reset systems across its combination range. Smaller open-shackle models often reset through the shackle. The closed-shackle ABUS 190CS/60 has its own recoding control.
To change the 190CS/60 code, open the padlock with the existing combination and move the reset control into the position shown in its instructions. Set the new four-digit code, then return the control to its normal position. Use the operating guide supplied with the lock to confirm the position of the recoding control.
Check the manual before applying these steps to another ABUS series. The reset point and required movement vary between models. Shop the ABUS 190CS60 combination padlock from Locks Direct.
What to do if you've forgotten a combination padlock code
Most resettable padlocks won't accept a new code while closed. Their reset mechanisms only become accessible after the current combination opens the shackle.
A padlock that still uses its factory setting may have the original code printed on the packaging. Where several people share the lock, look in the agreed place for stored access details. For a lock on rented or shared premises, speak to the person responsible for the property.
When the code still can't be found, use one of these routes:
Contact the manufacturer with the model number and proof of ownership.
Ask a qualified locksmith to assess the lock and the item it secures.
Replace a low-cost padlock if professional opening would cost more than a new one.
Get the property owner's permission before removing a lock from shared premises.
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Avoid videos or instructions that involve decoding and probing the mechanism.
They may damage the lock without opening the secured item.
Why won't the combination padlock work after resetting it?
Don't close the shackle yet. Common causes include an incomplete move into recoding mode or a number wheel sitting slightly out of line.
Run through these checks while the padlock is open:
Try the old combination. If it still works, repeat the correct reset process.
Centre each number on the indicator instead of viewing the wheels from an angle.
Check that the shackle or reset control completed its full movement.
Remove visible dirt from around the wheels without dismantling the lock.
Use a product from the lock lubricant range only when it suits the manufacturer's care instructions.
Stop if a component bends or needs force. The manufacturer or a locksmith can check it.
Once the new code opens the padlock reliably, scramble the wheels and test it again.
How to choose and store a secure combination code
Skip repeated digits and straight sequences. Dates or numbers connected to the owner are also easier for someone familiar with them to guess.
Save the combination in a password manager or another secure system that authorised users can access. Don't write it on the lock or beside the secured item. Change a shared code when someone no longer needs access.
When to replace a combination padlock
Replace a non-recodable lock if its combination has been lost. Replace a resettable model when the wheels no longer settle into position or the mechanism stops working reliably.
Choose the replacement for the job rather than by body size alone. Outdoor locks need suitable protection against the conditions, so compare the weatherproof padlock range for gates or exposed storage. For a higher-risk site, check the lock requirements stated by the insurer before buying.
BS EN 12320:2021 sets test requirements for mechanical padlocks and fittings used on buildings or for general purposes. Its scope covers strength, security, durability, performance and corrosion resistance. Use the relevant grade alongside any requirements set by the insurer.
Our padlock selection guide explains the main lock types and where they work best.
Browse all combination padlocks from Squire, ABUS, Defender and Burg-Wächter. If the right model or reset method still isn't clear, contact Locks Direct or call 0800 542 1264 for help before ordering.
Combination padlock FAQs
Can you reset a combination padlock without the current code?
Usually, you can't reset a combination padlock without the current code. On most models, the recoding mechanism only moves after the code opens the shackle. Check the original packaging for the factory code or contact the manufacturer or a locksmith with proof of ownership.
Can all combination padlocks be reset?
No, some combination padlocks have a fixed factory-set code. Look for the words “resettable” or “recodable” in the product information. A closed fixed-code lock with a lost combination will usually need replacing.
What is the default code for a combination padlock?
Many new four-wheel combination padlocks use 0000, and some three-wheel locks use 000. There's no universal default code. Check the manual or packaging before trying to set the lock, as the manufacturer may supply a different factory combination.
Do three-digit and four-digit combination padlocks reset in the same way?
They sometimes use the same reset method, but the number of digits doesn't determine the process. Both types may use a turning shackle, recode button, sliding switch or separate tool. Identify the mechanism and model before changing the combination.
How often should the combination be changed?
There's no fixed schedule for changing a personal padlock code. Set a new combination when an authorised user no longer needs access or someone else may know the existing code. Check the replacement code while the lock is open before putting it back into use.
Is resetting a combination padlock the same as changing its code?
Yes, “resetting” and “recoding” usually describe changing the combination on an open, resettable padlock. They don't normally mean returning a closed lock to a universal factory code. You usually need the existing code before setting a new one.
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