Push the reset lever left and down. The lever remains in this position. What you Need: pencil or marker, Phillips head screwdriver, level, drill, and drill bit. For certain surfaces, we recommend using anchors …

Master Lock 5401 Code Change Instructions Simple instructional video showing how to change the combination of the Master Lock ‘Select Access’ 5401 key storage unit.

This video will show you how to quickly and easily change the code on you masterlock key lock box. We will also go through one of the issues you may face tha...

Nov 11, 2025 · Changing the code on a Master Lock box isn’t some impossible task reserved for locksmiths. It’s simple once you know the steps and a little bit about your model. Most lock boxes, …

How do you reset a master lock box code? Slide down the shutter door on your Master Lock 5400D portable key safe and roll the dials to "0000" – the factory default combination.

Feb 8, 2025 · Open the Key Box: Begin by opening the key box using the existing combination. Set New Combination: Change your combination according to the master lock instructions. Check Multiple …

Simple instructional video showing how to change the combination of the Master Lock 'Select Access' 5401 key storage unit.

Open the lock box by entering the combination. If you're setting the combination for the first time, press the "CLEAR" (C) button and then press the "OPEN" button.

Lock boxes, especially those from Master Lock, are essential tools for real estate agents to provide easy access to properties for potential buyers, and understanding how to change the code on a Master …

Nov 29, 2025 · Identifying the type of locking system your box uses is key to a successful reset. Essential Preparation Before Resetting The most important step before altering any lockbox code is …