How to Install a Wired Video Doorbell with an Existing Chime
How to Install a Wired Video Doorbell with an Existing Chime
This guide provides the technical steps to integrate a smart video doorbell into your home's existing electrical chime system while ensuring stable power and functionality.
What You'll Need
- Voltage tester or multimeter
- Screwdriver set (Phillips and Flathead)
- Electric drill (if new mounting holes are needed)
- The doorbell chime kit/power kit provided by the manufacturer
Steps
Step 1: Power Down the Circuit
Locate your home's electrical panel and switch off the breaker providing power to the doorbell chime. Use a voltage tester on the existing doorbell wires to confirm the current is fully disconnected before touching any components.
Step 2: Verify Transformer Voltage
Check your transformer's output, typically located in the garage or attic, to ensure it meets the manufacturer's requirements (usually 16V-24V AC). If the voltage is too low, the video doorbell may reboot frequently or fail to ring the mechanical chime.
Step 3: Install the Chime Connector/Power Kit
If your doorbell includes a power kit, install it inside the mechanical chime box. Connect the kit's wires to the 'Trans' and 'Front' terminals as specified in the manual to regulate power flow and prevent the chime from humming.
Step 4: Remove the Old Doorbell
Unscrew the existing doorbell button from the wall and disconnect the two wires. Ensure the wires do not slip back into the wall cavity by wrapping them around a pencil or using a clip.
Step 5: Mount the Video Doorbell
Position the mounting bracket at the desired height and secure it to the wall using the provided screws. If installing on brick or stone, use the included wall anchors to ensure the device remains stable.
Step 6: Connect the Wiring
Attach the two existing doorbell wires to the terminals on the back of the video doorbell. Since most doorbell systems use AC power, the order of the wires typically does not matter, but ensure the connections are tight and secure.
Step 7: Secure and Power On
Carefully tuck the wires into the wall and snap the doorbell into its mounting bracket. Return to the electrical panel and restore power to the circuit.
Step 8: Configure Chime Settings
Open the device app and navigate to the doorbell settings. Select the chime type—Mechanical or Digital—to ensure the device sends the correct electrical pulse to trigger your existing chime.
Expert Tips
- If the chime makes a buzzing sound, your transformer may be underpowered or the power kit is improperly installed.
- For renters, use a no-drill mount to avoid damaging the exterior siding while still utilizing existing wiring.
- Always test the physical button press before finalizing the mount to ensure the mechanical chime triggers correctly.
See also
- Best Video Doorbell Under $100: A Hardware-Focused Comparison
- How to Install a Video Doorbell in an Apartment Without Drilling
- Video Doorbells with the Best Local Storage and Zero Subscription Fees
- How to Fix Weak Wi-Fi Signal at Your Front Door for Reliable Video Doorbell Performance