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Schlage Lock Not Working After Battery Change (7 Solutions)

schlage lock not working after battery change
Last Updated on April 28, 2023
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It's usually an easy fix if your Schlage lock is not working after a battery change. More often than not, it is an issue with the batteries or the way they were installed.

However, whether it's a super fancy smart lock or a simple keypad version, there are a few other things that could have occurred during the battery replacement process.

Here are common causes when your Schlage lock isn't working after a battery change:

  • Batteries were installed incorrectly
  • Low-quality or mixed batteries
  • Disconnected wire
  • Software Issue
  • Dirty lock internals

If this quick list didn't give you an idea of what may have gone wrong, let us help you identify the exact cause. We will walk through 7 detailed solutions to get it up and running as fast as possible to get your lock working again.

7 Solutions For Schlage Lock Not Working After Battery Change

1. Check the Battery Installation

Checking Schlage Encode battery pack

If you recently replaced the batteries in your Schlage lock and are now experiencing issues, it's possible that the batteries were not installed correctly. This is a common mistake that we have all made before, and it's easy to fix once you know what to look for.

The batteries may not have been inserted in the correct direction, or the tray possibly may not be fully seated.

How to Check your Schlage Smart Lock Batteries

If your lock uses AA or AAA batteries, open the battery compartment and make sure that the positive and negative ends of the batteries are oriented correctly. Look for the polarity symbols (+ and -) on the inside of the battery compartment for a guide.

If the batteries are inserted correctly, but the lock is still not functioning properly, try cleaning the battery contacts with a dry cloth or brush. When everything looks clean, reconnect the batteries, be sure the compartment is fully seated in, and check if the lock is working.

What Batteries Do Schlage Locks Take?

Depending on the model, Schlage locks will use one 9-Volt, four AA, or two AAA batteries.

  • The Schlage Touch keyless models BE365, BE367, BE375, FE575, FE595, BE369, and FE695, use a 9-volt battery.
  • Schlage smart locks like the Schlage Encode, Schlage Sense, and Schlage Connect use four AA batteries.
  • The Schlage Keypads with Built-in Alarms use two AA batteries.

In general, Schlage recommends Alkaline batteries as they have a less rapid power discharge when they get low. While non-alkaline batteries work in Schlage locks, they are less likely to provide low battery warnings.

See how to open a Schlage lock with a dead battery if you have found yourself locked out due to a lack of power.

2. Replace Low Quality or Mixed Batteries

Checking your Schlage smart lock battery power

Another possible culprit could be low-quality or mixed batteries. While it may be tempting to use whatever batteries you have on hand, doing so may hinder your lock's performance. To ensure that your Schlage lock is operating at its best, use all high-quality, fresh batteries.

Some lower-quality batteries often have lower capacities and weaker power outputs, which can cause your lock to malfunction or stop working altogether. Additionally, using mixed batteries (i.e. batteries from different brands or with different charge levels) can cause inconsistent power output, which can also result in lock malfunctions.

How to Check

To check whether you're using low-quality or mixed batteries, start by examining the batteries themselves. Look for signs of corrosion, leakage, or other damage. If the batteries appear to be in good condition, check the expiration date.

If you suspect that your Schlage lock's issues are related to low-quality or mixed batteries, it's important to replace them as soon as possible.

3. Inspect For Disconnected Wires

The most likely culprit if there is a disconnected wire is the battery connection wire as you need to remove it to change the batteries. However, the wire connecting the front and back panels could also be if the lock was taken off completely during the change.

You will want to check these main wires are connected and then also inspect for other damaged or broken ones.

How to Inspect

To inspect if there are disconnected wires in your Schlage lock:

  1. Remove the battery cover and check that the wire connected to the batteries is firmly snapped to the connector plate.
  2. Depending on the lock, you may be able to check the wire between the front and back panels. Also, look for any broken or loose wires connections.
  3. If you need to take the lock off the door to check the wires, you may want to try the next step of updating and resetting first.
  4. After reconnecting any disconnected wires, test the lock to ensure it is functioning properly. Reinstall the lock on the door if needed, and test it.

If you find damaged wires, you may need to check your warranty and contact Schlage customer support.

4. Update or Reset Software

Firmware is the software built in that controls the lock's functions, but it can sometimes get bugged or outdated, leading to malfunctions.

A firmware update could be needed, but it is likely only if you have a higher-tech smart lock.  If you have a keypad lock or one that does not connect to the internet, continue below for reset instructions.

How to Update

You can check for an update on the Schlage Home app by going to the settings and finding Firmware. It will let you know if you need an update and guide you through the process.

Alternatively, if you use the Allegion ENGAGE app, you can access updates through it as well.

Here's how you can check for a firmware update on your Schlage smart lock with Engage app:

  1. Log in or create an account if necessary
  2. Select the name of the place where the lock is located.
  3. Select the lock that you want to update.
  4. Once the "Connected" appears at the bottom of the screen, tap the "Update Firmware" button, and it will guide you to complete the update.

If an update is not needed, or a performed update doesn't solve the problem, you can perform a factory reset of your lock. This will erase all previously saved settings and return the lock to its default state which removes the programmed user codes.

How to Reset

A reset can fix a lot of hidden issues by giving the lock a fresh reboot. However, before you do, you will want to be sure you have both the default user and programming codes.

Factory Resetting Your Schlage Lock:

1. Remove the batteries from the lock and hold down the lock button while reinserting the batteries.

2. Keep the button pressed for at least 30 seconds until you see the lock's LED lights flash three times.

3. Once the reset is complete, you can reprogram with your default programming code.

As not every Schlage lock is reset the same way, refer to your Schlage lock resetting guide for help with different models.

5. Clean Lock Internals

Schlage locks may require cleaning from time to time, especially if they are exposed to the elements that bring dust, dirt, or other debris. It is important to note that Schlage smart locks are designed to be maintenance-free and generally do not require internal cleaning.

Cleaning the internals of a Schlage smart lock is a delicate process and should only be done if absolutely necessary. However, there is a chance with an older lock, like an older keypad style may have built up enough dust to disrupt some internal mechanisms.

How to Clean

Always refer to the manufacturer's instructions when performing any maintenance or cleaning on your Schlage lock to avoid causing any damage.

Here are a few tips for inspecting and cleaning your Schlage lock:

  1. Open the battery compartment and remove the batteries from the lock. This will prevent any electrical shock or damage to the lock during cleaning.
  2. Use a can of compressed air to blow out any dust or debris from the internals of the lock. Hold the can of compressed air at a distance and use short bursts of air to clean the lock.
  3. Check the latch and strike plate, as debris can sometimes accumulate on them, preventing the lock from properly engaging.
  4. Use a soft brush to clean any dirt or debris that found its way to the lock internals. Take care not to use anything abrasive that can scratch, or harsh chemicals that can damage the lock.
  5. When you are satisfied that the lock is clean, replace the batteries and reassemble the lock.

Test the lock to see if dirt is causing your issue.

6. Check For Damaged Hardware

Schlage Smart Locks, like any other mechanical device, can experience wear and tear over time. If the lock is a bit older there is a chance parts have worn, broken, or become misaligned.

How to Check

Look for visible signs of damage or wear on externals first. These can include scuffs or scratches on the surface of the lock or misalignment of the latch or bolt.

Examining latch, bolt, and strike plate. Tighten any loose screws and ensure the lock works with the turn bolt or key if it has one.

7. Contacting Customer Support

In the rare chance that none of these solutions got your lock up and running again, or you have broken parts, it is time to contact Schlage Customer Support here. They can walk you through the troubleshooting process and provide guidance on how to resolve the issue.

They can also help if you have identified damaged components or if there may be a defective part covered by warranty. Having your model number handy can help speed up the process a bit.

Summing It Up

Following the solution in this guide should have helped you learn how to troubleshoot any issues that arise after changing the batteries in your Schlage lock.

While these locks don't usually require a ton of maintenance, once in a while, they may need some extra attention and care.

I hope it turned out to be a simple fix, but if it required some effort, you at least learned some helpful tips that can also fix other future problems with the lock.

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