Learn how to install or replace batteries in the Centralite 3400 Keypad.
What You'll Need
- Xfinity Home
- 3400 Keypad
- Two CR123A batteries
- Double-sided tape (optional)
Difficulty
Medium
Do you need a battery?
Make sure you have batteries before you proceed. Visit your nearest retail store that sells batteries or click the button below to order your replacement battery kit.
Call us at 1-800-XFINITY if you receive a low battery alert within 30 days of device installation.
How to install the battery
Before proceeding, make sure that your system is disarmed. Working on devices while the system is armed can generate false alarms.
Is this your keypad? Make sure that your Keypad looks like the one in the image below. If it does, you're in the right place to find out how to install a battery in your Keypad.
- Remove the Keypad from the wall by sliding it upwards until it is free of the mounting bracket, then find the small horizontal raised line located on the back of the Keypad. This line is on the battery cover.
- Place your thumb on the horizontal line and push toward the end of the Keypad until the cover is removed.
After removing the cover, you may receive a tamper alert from your system. The tamper alert warns you when the cover of your device is open and will clear once the battery is replaced and the cover is reattached.
Take a Look. If a battery is already present, remove it by using your fingertip to gently pull one end of the battery up until the battery is loose and you can pull it free from the slot.
The battery compartment contains a diagram of the proper battery position with a symbol indicating which way the positive (+) end of the battery should be facing. - Insert two CR123A batteries into the compartment, positioning the positive (+) ends of the batteries as shown in the battery diagram.
Did You Know: The tamper switch (red rectangle) is exposed once you remove the cover. Take care not to touch it, as pressing down on the tamper switch will reset the Keypad to factory settings. - Align the cover with the slots in the track on the Keypad and slide the cover down the track until it snaps into place.
- When the batteries have been inserted correctly, the Keypad buttons and indicator lights will light up.
- If you're replacing the batteries, confirm that the low battery alert has resolved.
- Arm and disarm your system to confirm that the Keypad is working correctly.
- You may need to adjust the volume to your preferred level. To increase the volume, press and hold the 2 button. To decrease the volume, press and hold the 5 button.
- Reattach the Keypad to the wall by sliding it into the mounting bracket until secure.
