How to Hardwire Arlo Doorbell

Hardwiring your Arlo doorbell ensures continuous power and eliminates battery concerns. This guide walks you through the entire process—from checking compatibility to final testing—so you can enjoy reliable, uninterrupted performance.

Key Takeaways

• Check compatibility first: Not all Arlo doorbell models support hardwiring. Confirm your model (like Arlo Essential Wired Video Doorbell) is designed for direct wiring before starting.
• Turn off power at the breaker: Safety is critical. Always shut off electricity at the circuit breaker before handling any wiring to prevent shocks or damage.
• Use existing doorbell wiring if possible: Most homes have low-voltage doorbell wires that can be reused, saving time and effort during installation.
• Ensure proper voltage (16–24V AC): Arlo wired doorbells require a transformer outputting 16 to 24 volts AC. Using incorrect voltage may damage the device.
• Test connections before final mounting: Power up and test the doorbell before securing it permanently to avoid rework if issues arise.
• Use wire nuts or terminal screws securely: Loose connections cause flickering or failure. Always double-check that wires are tightly fastened.
• Follow local electrical codes: If unsure about wiring, consult a licensed electrician to ensure compliance and safety.

How to Hardwire Arlo Doorbell: A Complete Step-by-Step Guide

So you’ve got an Arlo doorbell—great choice! These smart doorbells offer crisp video, motion alerts, two-way audio, and seamless integration with the Arlo app. But if you’re tired of swapping out batteries every few months or dealing with Wi-Fi dropouts due to low power, hardwiring your Arlo doorbell is the solution you’ve been looking for.

In this comprehensive guide, we’ll walk you through how to hardwire Arlo doorbell safely and correctly. Whether you’re replacing an old doorbell or installing a new one from scratch, we’ll cover everything: checking compatibility, gathering tools, turning off power, connecting wires, testing the system, and troubleshooting common issues. By the end, you’ll have a reliable, always-on smart doorbell that never misses a visitor.

Let’s get started!

Why Hardwire Your Arlo Doorbell?

Before diving into the installation, it’s worth understanding why hardwiring is beneficial. While many Arlo doorbells come in battery-powered versions, the wired models—like the Arlo Essential Wired Video Doorbell—are designed to connect directly to your home’s electrical system.

Here are the top reasons to hardwire:

• No more battery changes: Say goodbye to monthly or quarterly battery replacements.
• Consistent performance: Full power means better video quality, faster response times, and fewer connectivity issues.
• Reliable motion detection: Hardwired units can support advanced features like continuous recording and person detection without power-saving interruptions.
• Longer lifespan: Continuous power reduces wear on internal components compared to frequent charging cycles.

If you’re using a battery-powered Arlo doorbell and want to switch to hardwiring, note that not all models support this. Only specific wired versions can be hardwired. We’ll cover how to check compatibility next.

Step 1: Confirm Your Arlo Doorbell Model Supports Hardwiring

Not every Arlo doorbell can be hardwired. The company offers both battery-powered and wired models, and they are not interchangeable. Attempting to hardwire a battery-only model can damage the device or void your warranty.

To check compatibility:

• Look at the product name or packaging. Models like the Arlo Essential Wired Video Doorbell or Arlo Pro 4 Wired are designed for hardwiring.
• Visit the official Arlo website and search your model number. The product page will specify whether it supports wired installation.
• Check the user manual or quick start guide that came with your doorbell.

If you’re unsure, contact Arlo customer support with your model number. They can confirm whether hardwiring is supported.

Pro Tip: If you currently have a battery-powered Arlo doorbell and want to hardwire it, you may need to purchase a compatible wired model. Unfortunately, there’s no adapter or conversion kit to make a battery unit work with wires.

Step 2: Gather the Right Tools and Materials

Before you begin, make sure you have all the necessary tools and materials. This will save you time and prevent frustrating mid-installation trips to the hardware store.

Essential Tools

• Screwdriver set: Phillips and flathead screwdrivers for removing faceplates and mounting brackets.
• Voltage tester: To confirm power is off before working on wires.
• Wire strippers: For removing insulation from doorbell wires (if needed).
• Drill and bits: Only if you’re mounting on brick, stucco, or another hard surface.
• Level: To ensure your doorbell is straight.
• Pencil or marker: For marking drill points.

Materials You May Need

• Low-voltage doorbell wires: If your existing wires are damaged or missing, you’ll need 18- or 20-gauge stranded wire.
• Wire nuts (wire connectors): To secure connections (usually included with the doorbell).
• Electrical tape: For extra insulation (optional but recommended).
• Mounting screws and anchors: Often included, but have extras on hand.
• Transformer (if upgrading): If your current transformer doesn’t output 16–24V AC, you’ll need a new one.

Note: Most homes already have a doorbell transformer and wiring in place. We’ll check that next.

Step 3: Turn Off Power at the Circuit Breaker

Safety first! Even though doorbell systems use low voltage, they are still connected to your home’s electrical circuit. Working on live wires can cause shocks, short circuits, or damage to your doorbell.

How to Safely Turn Off Power

1. Locate your home’s main electrical panel (breaker box).
2. Find the breaker labeled “Doorbell,” “Chime,” or “Front Door.” If there’s no label, you may need to test breakers one by one.
3. Switch the breaker to the “OFF” position.
4. Use a non-contact voltage tester near the doorbell wires to confirm no power is present.

Important: Never assume the power is off just because the doorbell isn’t ringing. Always test with a voltage tester.

If you’re unsure which breaker controls the doorbell, turn off the main breaker temporarily. It’s better to be safe than sorry.

Step 4: Remove the Old Doorbell (If Applicable)

If you’re replacing an existing doorbell, you’ll need to remove it first. This step is essential whether you’re upgrading from a mechanical doorbell or another smart model.

Steps to Remove the Old Doorbell

1. Unscrew the faceplate of the old doorbell using a screwdriver.
2. Gently pull the doorbell away from the wall to expose the wires.
3. Take a photo of the wiring setup for reference (this helps during reinstallation).
4. Loosen the terminal screws and disconnect the wires. Label them if needed (e.g., “Front” and “Trans”).
5. Remove the mounting bracket if it’s incompatible with your Arlo doorbell.

Pro Tip: If the wires are short or frayed, use wire strippers to trim the ends and expose fresh copper. This ensures a solid connection.

Once the old doorbell is removed, inspect the wires for damage. If they’re cracked, brittle, or too short, you may need to run new wires from the chime unit inside your home.

Step 5: Check Your Doorbell Transformer Voltage

The transformer is the small device that steps down your home’s 120V AC power to the low voltage (usually 16–24V AC) needed for doorbells. Arlo wired doorbells require a transformer within this range to function properly.

How to Test Transformer Voltage

1. Locate the transformer. It’s typically found in the basement, attic, garage, or near the doorbell chime.
2. It looks like a small metal box with wires coming out and is often mounted near electrical panels.
3. Use a multimeter set to AC voltage.
4. Touch the probes to the two low-voltage terminals (usually labeled “Front” and “Trans” or “Common”).
5. Read the voltage. It should be between 16 and 24 volts AC.

If the voltage is below 16V, your Arlo doorbell may not power on or may behave erratically. If it’s above 24V, it could damage the device.

What to Do If Voltage Is Incorrect

• Too low: Replace the transformer with a 16–24V AC model (e.g., 16V 10VA or 24V 20VA). These are widely available at hardware stores.
• Too high: Do not install the doorbell. Replace the transformer immediately.
• No transformer: If your home lacks a transformer (common in newer builds), you’ll need to install one. This may require an electrician.

Note: Some smart doorbells come with a compatible transformer in the box. Check your Arlo package before buying a new one.

Step 6: Prepare the Wiring for Your Arlo Doorbell

Now that power is off and the old doorbell is removed, it’s time to prepare the wires for your new Arlo doorbell.

Steps to Prepare the Wires

1. Strip about 1/4 inch of insulation from the ends of the two doorbell wires using wire strippers.
2. If the wires are too short to reach the new mounting location, you may need to extend them. Use wire nuts to connect new wire segments securely.
3. Twist the exposed copper strands to prevent fraying.
4. If your Arlo doorbell includes a mounting bracket, attach it to the wall first using screws and anchors.

Pro Tip: If you’re mounting on brick or stucco, use a masonry drill bit and plastic anchors for a secure fit.

Once the bracket is in place, thread the wires through the center hole so they’re accessible from the back of the doorbell.

Step 7: Connect the Wires to Your Arlo Doorbell

This is the core step of how to hardwire Arlo doorbell. Proper wiring ensures reliable power and functionality.

How to Connect the Wires

1. Identify the two terminals on the back of your Arlo doorbell. They are usually labeled “Front” and “Trans” or simply “+” and “–” (though polarity doesn’t matter for AC).
2. Loosen the terminal screws slightly.
3. Insert one wire into each terminal. It doesn’t matter which wire goes where—AC current flows both ways.
4. Tighten the screws securely to hold the wires in place. Give each wire a gentle tug to ensure it’s not loose.
5. If your model uses wire nuts instead of screws, twist the wires together and cap them with a wire nut. Then connect to the doorbell’s internal terminals as instructed.

Important: Do not let the bare wire ends touch each other. This can cause a short circuit when power is restored.

If you’re using electrical tape, wrap it around the wire nuts or terminal connections for added insulation—especially in humid or outdoor environments.

Step 8: Mount the Arlo Doorbell to the Wall

With the wires connected, it’s time to secure the doorbell to the wall.

Steps to Mount the Doorbell

1. Align the doorbell with the mounting bracket.
2. Slide it into place until it clicks or sits flush.
3. Use the provided security screw (usually a small hex or Torx screw) to lock the doorbell in place. This prevents tampering or theft.
4. Use a level to ensure the doorbell is straight. A crooked doorbell looks unprofessional and may affect motion detection.

Pro Tip: If your doorbell has an adjustable angle, position it so the camera has a clear view of your doorstep and walkway.

Step 9: Restore Power and Test the Doorbell

Now for the moment of truth—turn the power back on and test your installation.

How to Test Your Hardwired Arlo Doorbell

1. Go back to the circuit breaker and switch the doorbell breaker to “ON.”
2. Wait 30–60 seconds for the doorbell to power up.
3. Open the Arlo app on your smartphone.
4. The app should detect the doorbell and prompt you to complete setup (if not already done).
5. Check the live video feed. You should see a clear image of your front door.
6. Test the doorbell button by pressing it. The chime inside should ring, and you should receive a notification on your phone.
7. Test two-way audio by speaking through the app.

If everything works, congratulations—you’ve successfully hardwired your Arlo doorbell!

If not, don’t panic. We’ll cover troubleshooting next.

Troubleshooting Common Hardwiring Issues

Even with careful installation, problems can occur. Here are the most common issues and how to fix them.

Doorbell Won’t Power On

• Check the breaker: Ensure power is restored and the breaker hasn’t tripped.
• Test the transformer: Use a multimeter to confirm it’s outputting 16–24V AC.
• Inspect connections: Loose or reversed wires can prevent power flow. Re-tighten terminals.
• Try a different location: If possible, test the doorbell with a temporary power source to rule out device failure.

Video Feed Is Blurry or Flickering

• Check Wi-Fi signal: Weak signal can cause video issues. Move your router closer or use a Wi-Fi extender.
• Ensure full power: Low voltage can affect video quality. Recheck transformer output.
• Update firmware: Open the Arlo app and check for firmware updates.

Doorbell Button Doesn’t Ring the Chime

• Verify chime compatibility: Some digital chimes may not work with smart doorbells. Check Arlo’s compatibility list.
• Check wiring at the chime: Ensure wires are connected to the correct terminals inside the chime unit.
• Bypass the chime (optional): If the chime doesn’t work, you can still receive phone notifications. Some users prefer this.

Intermittent Power or Random Restarts

• Voltage fluctuations: A failing transformer or undersized wiring can cause this. Replace the transformer if needed.
• Loose connections: Re-secure all wire connections at the doorbell and chime.
• Overloaded circuit: If other devices share the same circuit, consider a dedicated line (consult an electrician).

When to Call a Professional: If you’re uncomfortable working with electricity, or if issues persist after troubleshooting, hire a licensed electrician. They can safely diagnose and fix wiring or transformer problems.

Final Tips for a Successful Installation

To ensure your hardwired Arlo doorbell lasts for years, follow these best practices:

• Label your wires: If you ever need to remove the doorbell, labeled wires make reinstallation easier.
• Use weatherproofing: If installing in a rainy or humid climate, apply silicone sealant around the mounting area to prevent moisture damage.
• Keep the app updated: Arlo regularly releases updates that improve performance and security.
• Clean the lens regularly: Wipe the camera lens with a soft, dry cloth to maintain clear video.
• Monitor battery (if hybrid): Some wired Arlo models have backup batteries. Check the app periodically to ensure it’s charged.

Conclusion

Hardwiring your Arlo doorbell is a smart move that enhances reliability, performance, and convenience. By following this guide, you’ve learned how to hardwire Arlo doorbell safely and effectively—from checking compatibility and testing voltage to connecting wires and troubleshooting issues.

With continuous power, you’ll enjoy crystal-clear video, instant alerts, and peace of mind knowing your smart doorbell is always ready. Whether you’re upgrading from a battery model or installing a new system, hardwiring ensures your Arlo doorbell works exactly when you need it most.

Now go ahead—ring that doorbell with confidence!