How to Lock a Eufy Lock

Locking your Eufy smart lock is simple and can be done manually, via the app, or using voice commands. This guide covers all methods, troubleshooting, and best practices to keep your home secure.

Key Takeaways

• Manual Locking: Use the physical keypad or thumbturn to lock your Eufy lock from inside or outside.
• App Control: Lock remotely using the eufySecurity app on your smartphone from anywhere with internet access.
• Voice Commands: Use Alexa or Google Assistant to lock your door hands-free with simple voice prompts.
• Auto-Lock Feature: Enable auto-lock in the app to automatically secure your door after a set time.
• Troubleshooting Tips: If your lock won’t respond, check battery levels, Wi-Fi connection, or restart the device.
• Security Best Practices: Regularly update firmware, use strong passcodes, and monitor access logs for safety.
• Multiple Access Methods: Combine keypad, app, fingerprint, and physical keys for flexible and secure entry.

How to Lock a Eufy Lock: A Complete Step-by-Step Guide

If you’ve recently installed a Eufy smart lock or are just getting familiar with its features, you’re in the right place. Eufy locks are designed to make home security smarter, more convenient, and highly customizable. Whether you’re locking up before bed, leaving for work, or heading out on vacation, knowing how to lock a Eufy lock properly ensures your home stays safe.

In this comprehensive guide, we’ll walk you through every method available to lock your Eufy smart lock—from manual operation to remote app control and voice commands. You’ll also learn how to set up auto-lock, troubleshoot common issues, and follow best practices to maximize security. By the end, you’ll feel confident managing your Eufy lock like a pro.

Let’s dive in and explore all the ways you can secure your door with your Eufy smart lock.

Understanding Your Eufy Lock

Before we get into the how-to steps, it’s important to understand what a Eufy lock is and how it works. Eufy, a brand under Anker, offers a range of smart locks that replace or retrofit your existing deadbolt. These locks connect to your home Wi-Fi (or use a local hub in some models) and allow you to control access to your home through a smartphone app, keypad, fingerprint scanner, or even voice assistants.

Most Eufy locks feature:
– A built-in keypad for PIN entry
– A thumbturn for manual locking from the inside
– Bluetooth and Wi-Fi connectivity (depending on the model)
– Integration with Alexa and Google Assistant
– Auto-lock functionality
– Access logs to track who enters and when

Popular models include the Eufy Smart Lock Touch, Eufy Smart Lock C21, and Eufy Smart Lock Fingerprint. While features vary slightly between models, the core locking mechanisms remain consistent.

Knowing your lock’s capabilities helps you choose the best method to lock it—whether you’re at home, away, or in a hurry.

Method 1: Locking Your Eufy Lock Manually

The simplest and most reliable way to lock your Eufy lock is manually. This method doesn’t require Wi-Fi, an app, or batteries—just your hands.

Using the Thumbturn (Inside the Home)

If you’re inside your home, the quickest way to lock the door is by using the thumbturn on the interior side of the lock.

1. Stand facing the door with the lock on your right or left side (depending on door orientation).
2. Locate the thumbturn—a small lever or knob near the edge of the door.
3. Turn the thumbturn clockwise (usually) until you hear a solid click.
4. Test the door by gently pushing or pulling to confirm it’s locked.

Tip: Some Eufy models have a visual indicator (like a red light) that shows when the door is locked. Check your user manual to confirm this feature.

Using the Keypad (Outside the Home)

When you’re leaving your home, you can lock the door from the outside using the keypad.

1. Close the door completely behind you.
2. Wait a few seconds for the lock to recognize the door is shut.
3. On the keypad, press the lock button (usually labeled with a padlock icon).
4. Alternatively, enter your personal PIN code followed by the lock button.
5. Listen for a confirmation beep or see a green light to confirm the lock engaged.

Example: If your PIN is 1234, press “1234” then the lock button. The door will lock automatically.

Note: On some models, simply closing the door and walking away triggers auto-lock after 30 seconds. But if auto-lock is off, you must press the lock button.

Using a Physical Key (Backup Method)

Every Eufy lock comes with a physical key as a backup. This is useful during power outages or if the lock malfunctions.

1. Insert the key into the keyhole on the exterior side of the lock.
2. Turn the key clockwise to lock the deadbolt.
3. Remove the key and store it in a safe place.

Tip: Keep your physical key in a secure location—like a lockbox or with a trusted neighbor—just in case.

Method 2: Locking Your Eufy Lock via the App

One of the biggest advantages of a Eufy smart lock is the ability to control it remotely using the eufySecurity app. This method is perfect when you’re away from home and want to double-check that your door is locked.

Prerequisites for App Locking

Before you can lock your Eufy lock via the app, make sure:
– Your lock is connected to Wi-Fi (or paired via Bluetooth if using a hub).
– The eufySecurity app is installed on your smartphone (iOS or Android).
– You’ve logged into your account and added your lock to the app.
– Your phone has an active internet connection.

Step-by-Step: Locking via the App

1. Open the eufySecurity app on your smartphone.
2. Tap on the “Devices” tab at the bottom of the screen.
3. Select your Eufy lock from the list of devices.
4. On the lock’s control screen, tap the “Lock” button (usually a padlock icon).
5. Wait a few seconds for the app to send the command to the lock.
6. You’ll see a confirmation message like “Locking” or “Locked” on the screen.
7. Optional: Check the status indicator to confirm the lock is engaged.

Tip: If the app says “Locking” but doesn’t confirm, wait 10–15 seconds and refresh the screen. Slow Wi-Fi can delay responses.

Checking Lock Status Remotely

The app also lets you see whether your door is currently locked or unlocked. This is especially helpful if you’re unsure whether you locked up before leaving.

1. Open the app and go to your lock’s control screen.
2. Look at the status indicator—green usually means locked, red or gray means unlocked.
3. If it’s unlocked, tap the lock button to secure it.

Example: You’re at the airport and suddenly wonder if you locked the front door. Open the app, check the status, and lock it remotely—peace of mind in seconds.

Method 3: Using Voice Commands to Lock Your Eufy Lock

If you have a smart home setup with Alexa or Google Assistant, you can lock your Eufy lock using just your voice. This is great for hands-free control when your hands are full or you’re in another room.

Setting Up Voice Control

Before using voice commands, you need to link your Eufy account to your voice assistant.

For Amazon Alexa:

1. Open the Alexa app on your phone.
2. Tap “More” > “Skills & Games.”
3. Search for “eufySecurity” and enable the skill.
4. Log in with your Eufy account credentials.
5. Discover devices—Alexa will find your Eufy lock.
6. Say, “Alexa, discover devices,” if it doesn’t happen automatically.

For Google Assistant:

1. Open the Google Home app.
2. Tap “+” > “Set up device” > “Works with Google.”
3. Search for “eufySecurity” and link your account.
4. Follow the prompts to authorize access.
5. Your lock will appear in the app and be ready for voice control.

Voice Commands to Lock Your Door

Once set up, use these simple phrases:

• “Alexa, lock the front door.”
• “Hey Google, lock the Eufy lock.”
• “Alexa, is the front door locked?” (to check status)

Tip: You can rename your lock in the app (e.g., “Front Door” or “Main Entrance”) to make voice commands more natural.

Note: Voice locking only works if your lock is connected to Wi-Fi and the voice assistant can reach it. Bluetooth-only models may have limited functionality.

Method 4: Using Auto-Lock for Hands-Free Security

The auto-lock feature is one of the most convenient settings on your Eufy lock. It automatically locks the door after a set period, so you never have to worry about forgetting.

How Auto-Lock Works

When enabled, auto-lock waits for the door to close and then starts a countdown (e.g., 30 seconds, 1 minute, 5 minutes). Once the timer ends, the lock engages automatically.

This is ideal for:
– Families with kids who might forget to lock the door
– People with busy routines
– Homes with frequent comings and goings

Enabling Auto-Lock in the App

1. Open the eufySecurity app.
2. Select your lock from the device list.
3. Tap the gear icon (Settings) in the top-right corner.
4. Scroll down and find “Auto-Lock” or “Auto Lock Timer.”
5. Toggle the switch to “On.”
6. Choose your preferred delay: 30 seconds, 1 minute, 2 minutes, 5 minutes, or 10 minutes.
7. Tap “Save” or “Confirm.”

Tip: Start with 1 minute to test the feature. If it locks too quickly, increase the delay.

Disabling Auto-Lock

If you prefer manual control, you can turn off auto-lock at any time by following the same steps and toggling the switch to “Off.”

Note: Auto-lock only works when the door is closed. If the door is left ajar, the timer won’t start.

Method 5: Locking with Fingerprint (On Compatible Models)

Some Eufy locks, like the Smart Lock Touch or Fingerprint models, include a built-in fingerprint scanner. While this is primarily for unlocking, you can still use it to confirm your identity before locking.

How to Lock After Fingerprint Unlock

1. Unlock the door using your registered fingerprint.
2. Enter your home and close the door.
3. Wait for the auto-lock timer (if enabled), or manually lock using the thumbturn or app.

Note: Fingerprint scanners don’t directly lock the door—they only unlock it. Locking still requires a manual action or auto-lock.

Adding Fingerprint Users

To ensure only authorized people can unlock (and thus control locking), add fingerprints in the app:

1. Open the app and go to your lock’s settings.
2. Tap “Fingerprint Management.”
3. Select “Add Fingerprint.”
4. Follow the on-screen prompts to scan a finger multiple times.
5. Assign a name (e.g., “Mom” or “Dad”) and save.

Tip: Register multiple fingers per person for better reliability.

Troubleshooting Common Locking Issues

Even the best smart locks can run into problems. Here’s how to fix the most common issues when trying to lock your Eufy lock.

Issue 1: Lock Won’t Respond to App or Keypad

Possible Causes:
– Low battery
– Wi-Fi or Bluetooth connection lost
– App glitch

Solutions:

• Check battery level in the app. Replace batteries if below 20%.
• Move closer to the lock (for Bluetooth models) or restart your router.
• Force-close and reopen the eufySecurity app.
• Try locking manually with the thumbturn or key.

Issue 2: Auto-Lock Not Working

Possible Causes:
– Feature is disabled
– Door not fully closed
– Timer set too long

Solutions:

• Verify auto-lock is enabled in the app settings.
• Ensure the door closes completely—check for obstructions.
• Reduce the auto-lock timer to 30 seconds to test.
• Restart the lock by removing and reinserting batteries.

Issue 3: Voice Command Fails

Possible Causes:
– Skill not linked
– Microphone muted
– Lock not discovered

Solutions:

• Re-link the eufySecurity skill in Alexa or Google Home.
• Say, “Alexa, discover devices” or “Hey Google, sync my devices.”
• Check that your lock’s name doesn’t conflict with other devices.
• Ensure your phone and lock are on the same Wi-Fi network.

Issue 4: Keypad Not Responding

Possible Causes:
– Dirt or moisture on keys
– Low battery
– Frozen screen (in cold weather)

Solutions:

• Clean the keypad with a dry cloth.
• Replace batteries—even if the app says they’re okay.
• Warm the keypad gently with your hand in cold weather.
• Use the physical key as a backup.

Best Practices for Locking Your Eufy Lock

To keep your home secure and your lock functioning smoothly, follow these best practices.

1. Regularly Check Battery Levels

Eufy locks typically last 6–12 months on a set of batteries. Low power can cause locking failures.

• Check battery status weekly in the app.
• Replace batteries before they die completely.
• Use high-quality alkaline batteries (e.g., Duracell or Energizer).

2. Keep Firmware Updated

Eufy releases firmware updates to improve security and performance.

• Open the app and go to lock settings.
• Tap “Firmware Update” if available.
• Follow prompts to install updates.

3. Use Strong, Unique PIN Codes

Avoid simple codes like “1234” or “0000.”

• Create 4–8 digit codes that are hard to guess.
• Change codes periodically, especially if someone moves out.
• Never share your master code publicly.

4. Monitor Access Logs

The app tracks every unlock event.

• Review logs weekly to spot unusual activity.
• Set up notifications for unlocks if supported.
• Remove access for users who no longer need it.

5. Test Your Lock Weekly

Make it a habit to test all locking methods.

• Try locking manually, via app, and with voice.
• Confirm auto-lock works as expected.
• Ensure the physical key still operates smoothly.

Conclusion

Locking your Eufy smart lock doesn’t have to be complicated. Whether you’re using the keypad, app, voice command, or auto-lock feature, you have multiple reliable ways to secure your home. The key is understanding your lock’s capabilities and choosing the method that fits your lifestyle.

From quick manual locks to remote control from across the country, Eufy puts security and convenience at your fingertips. By following this guide, you’ll not only know how to lock a Eufy lock—you’ll also troubleshoot issues, optimize settings, and keep your home safe year-round.

Remember: a smart lock is only as good as how you use it. Regular maintenance, strong codes, and staying connected ensure your Eufy lock works when you need it most.

Now go ahead—lock that door with confidence.