How to Use & Reset a Combination Lock on Your Letterbox

Our letterboxes use a mechanical 3-digit combination lock for simple, key-free access. Below is a clear guide on how to use the lock day to day, and how to reset the code if needed.

How to Use the Combination Lock

• Rotate the three dials to your current code.
• The factory default code is usually 0-0-0.
• Turn the lock to the OPEN position to access the compartment.
• After closing the door, scramble the dials to conceal the code.

Note: Depending on the lock model, the OPEN direction may be clockwise or anticlockwise.

How to Reset the Combination Code

1. Set the lock to the current working code and open the lock.
2. Locate the small reset hole on the side of the lock.
3. Insert a pin, paperclip, or small nail into the hole.
4. Press and hold the reset button inside.
   • If you don’t feel a spring or click, rotate the lock fully clockwise or anticlockwise and try again.
5. While holding the reset button, set your new 3-digit code.
6. Release the reset button.
7. Test the new code several times before closing the door.

Important Tips

• Do not release the reset button until the new code is fully set.
• Always test the new code with the door open.
• If the current code is unknown, the lock cannot be reset and may need replacing.

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