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How to Reset a Master Lock Key Box

Updated February 21, 2017

If you or your children have ever misplaced your house keys, then you know how beneficial it is to have a spare set of keys handy. If the need should ever arise for someone such as a maintenance worker or a house guest to access your Master Lock key box, you might feel the need to change the lock code. Fortunately, this is a very quick and simple procedure to complete.

Open the lockbox lid employing the current code. Once inside the box, remove the front panel by pushing down on the lever directly above the code dials.

Locate the reset button. This is on the outside of the rear portion of the lockbox lid. Slide the reset button to the left. This clears the current code so that you may enter a new one.

Input your replacement code one numeral at a time. Once the new code is set, slide the lockbox reset button to the right. This locks your new code in place.

Test the new combination before replacing the front panel. After replacing your keys in the lockbox, mix up the code numbers to disguise your new code.

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About the Author

Brad Stewart began his career as a published writer in 2010. He worked for four years as a judge and contributor to Campbell University's literary magazine, the "Lyricist," and his recent work has been featured on eHow and Answerbag. Stewart holds a Bachelor of Arts in English from Campbell University.