Safe lock help · Generic (Wah Lin Parts, YOSEC and look-alikes)
Safe lock troubleshooting › Generic (Wah Lin Parts, YOSEC and look-alikes) › Low-cost replacement keypad lock (9-volt, solenoid)
These are low-cost replacement keypad locks sold online for gun safes, home safes, lockboxes and hotel safes, under names like Wah Lin Parts and YOSEC. They have a round keypad with three small lights (green, red and yellow), a solenoid (or swing bolt) lock, two emergency keys, and run on one 9-volt alkaline battery. They look a lot like a Securam SafeLogic keypad, but they are not the same lock and they do not use the same steps. This guide covers how to open it, change the management code, replace the battery, and what the lights mean.
Want the whole manual? Jump to the manufacturer download links.
Is this your lock?
- A round keypad (chrome, black or gold ring) with the numbers 1 to 9, a 0, and a star key and a # key on the bottom row. Three small lights sit at the left: green, red and yellow.
- It is sold as a replacement lock kit: a keypad, a solenoid lock (or a swing bolt version), a circuit board, a reset button on a cable, and two emergency keys.
- It runs on one 9-volt alkaline battery in the keypad.
- It has one management code and up to two user codes, each 3 to 8 digits long.
- If you are not sure whether yours is one of these, a photo or the name on the box helps: call us.
How to open it
- Enter your code (3 to 8 digits), then press #.
- The green light comes on and the solenoid engages.
- You have about 6 seconds to turn the lock (handle or knob) and open the safe.
- When the battery is first connected, the keypad gives a beep and the yellow light flashes once.
- Interference code: these locks let you type extra digits before or after your code. You can enter up to 20 digits, and the door opens if your 3 to 8 digit code appears anywhere in the string (for example, with a code of 666666, the entry 1532666666398 opens the door). This hides your real code from someone watching.
- A wrong code makes the keypad beep with the red light.
How to change the battery
The lock uses one 9-volt alkaline battery (we recommend Procell). Low battery: when you open the safe, the red light comes on (the seller’s page says the red and green lights both come on). Replace the battery as soon as you see it.
- Open the safe if you can. These locks are only as good as their battery, so do this before it dies.
- Remove the keypad face: press the tab and turn the face counter-clockwise (the seller says to press the tab counter-clockwise).
- Put in a new 9-volt alkaline battery. Do not use a rechargeable.
- Put the keypad face back, and test your code with the door open.
- If the keypad does not respond and the lights stay off, check that the keypad cable is firmly connected at the circuit board, and then check the battery.
- A cable that has pulled loose is a common reason these keypads stop responding after a replacement. If the cable or its plug is damaged, call us.
How to change the management code
Do this with the safe door OPEN.
Test the new code several times before you close the door. The management code must be changed before you can set user codes or other settings.
- Enter 000000#. The yellow light comes on.
- Enter the current management code and #. The red light comes on.
- Enter your new code (3 to 8 digits) and #.
- Enter the new code again and #.
- When the yellow and red lights go out at the same time, the new management code is set.
- User codes: after the management code is changed you can set two user codes and delete them. The seller’s manual (linked below) gives the key sequences for each.
- There is a reset button on a cable that returns the lock to its factory settings. We are not putting those steps on this page: if you need a reset, call us.
What the lights mean
| Light or sound | What it means |
|---|---|
| Green light, and the solenoid clicks | The code was right. You have about 6 seconds to open. |
| Red light and beeps | The code was wrong. |
| Red light (or red and green) when you open the safe | The battery is low. Replace it. |
| Yellow light on after you enter 000000# | The lock is in programming mode. |
| Yellow and red lights go out at the same time | A new code was set successfully. |
| Beep and one yellow flash when the battery is connected | The keypad has power. |
Wrong codes
If you enter a wrong code three times in a row, the keypad locks for 20 seconds, flashes the red light and beeps. Wait the 20 seconds, then enter your code again.
If it still won’t open
The keypad beeps but the code does not work
Three wrong codes in a row lock it for 20 seconds: wait, then try again slowly. If the lock was just installed, the management code may not have been changed yet, which blocks other settings.
Nothing happens and no lights come on
Check that the keypad cable is connected firmly and then put in a fresh 9-volt alkaline battery.
It will not fit or work on my safe
These kits are meant to replace the whole old lock (keypad, circuit board and solenoid). Mixing old and new parts does not work. Compare the bolt mechanism and the mounting holes with your old lock first.
The safe is locked and the lock has stopped working
Call us. We see these locks often, and our technicians can open the safe and replace the lock.
Download the full manufacturer instructions
This page is a quick-reference summary. For every feature and diagram, use the official manual for your model:
- Safe Lock Instruction Manual, Wah Lin Parts solenoid lock (PDF)The seller’s manual (Wah Lin Parts), linked from the Amazon listing. The page images are scans, so the PDF cannot be searched.
- Example product listing (Wah Lin Parts solenoid lock)Seller listing with the product description. Other sellers sell look-alike locks with the same steps.
Need a hand?
Still stuck? We can help.
Having a hard time getting into your safe? Our technicians are trained to open malfunctioning safes professionally, so your valuables can still be safely secured. Call us or stop by.
Steve’s Lock, Safe and Alarm · 3401 N. Sepulveda Blvd, Manhattan Beach, CA 90266
More lock guides
About this guide. This is an independent guide from Steve’s Lock, Safe and Alarm, a safe and lock dealer. Brand and model names belong to their owners and are used only to help you identify your lock. We are not affiliated with the manufacturers. These steps summarize the manufacturers’ own instructions; your lock may be a different version, so if anything here does not match what your lock does, follow your manual or call us. Always change codes with the safe door open, and test the new code several times before you close the door.
Steps last checked against the manufacturer documents on October 15, 2026.