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Troubleshooting Ring Alarm Outdoor Contact Sensor (2nd Gen)

Follow these steps to help resolve issues with your Ring Alarm Outdoor Contact Sensor (2nd Generation).

The light patterns on your Outdoor Contact Sensor will help you identify if it’s working well, or if there’s something wrong. The LED indicator on your Outdoor Contact Sensor might:

  • Blink green three times
    when it is ready to connect to the network.
  • Blink green one time
    when it is connected and communicating with your Base Station.
  • Blink red one time
    when it is unable to communicate with the Base Station.

Ring Alarm Outdoor Contact Sensor (2nd Generation) won’t connect

Try these steps, one at a time, and see if any of them resolve the issue before moving on to the next step. If the light flashes green one time, it is back online and working.

  • Move the Contact Sensor closer to the Alarm or Alarm Pro Base Station.
  • Add a
    between the Contact Sensor and the Base Station. The Range Extender helps extend and expand the Base Station’s Z-Wave network, allowing for greater range and signal strength for all compatible devices at your location.
  • Remove the back cover, remove all batteries, wait a few seconds, then reinsert them.
  • If nothing works and there is no light on the Outdoor Contact Sensor, try replacing the batteries with new ones.

If your Contact Sensor isn’t working or being recognized by your Ring Alarm and the battery power is sufficient, you may have to adjust the position of the magnet and sensor. Move the sensor closer to the magnet or in a more optimal alignment. Click here for tips for installing a Contact Sensor.

Removing your Ring Alarm Outdoor Contact Sensor (2nd Generation)

To remove the Outdoor Contact Sensor:

  1. Open the Ring app.
  2. Tap the
    menu (☰).
  3. Tap
  4. Tap the
    Outdoor Contact Sensor
    under the Sensors section.
  5. Tap the
    Device Settings
  6. Tap
    Remove Device
    at the bottom of the screen.
  7. Confirm device removal by tapping
    Remove Device
    on the next screen.
  8. Tap
    Got it
    once your Outdoor Contact Sensor is successfully removed.

Ring Alarm Outdoor Contact Sensor (2nd Generation) still won't connect or adds as a binary sensor

  1. Remove the Outdoor Contact Sensor from its base. Ensure that the batteries* are installed.
  2. Open the Ring app.
  3. Tap the
    menu (☰)
  4. Tap
  5. Tap
    Alarm Base Station
    Alarm Pro Base Station
  6. Tap
    Base Station
  7. Tap the
    Device Settings
  8. Tap
    Advanced Options
  9. Tap
    , then tap
    Remove Z-Wave Device
  10. Tap
    . The Ring app will say, “
    Remove device, listening for device to remove.”
  11. Press and release the pinhole reset button. The device should be removed successfully and can be re-added using the Ring app.

* Always insert replacement batteries correctly, matching the + (positive) and - (negative) symbols on the battery with the symbols on your Motion Detector.

Factory resetting your Ring Alarm Outdoor Contact Sensor (2nd Generation)

If you've tried all of the above steps and are still having difficulty with your Outdoor Contact Sensor, you may need to perform a factory reset on this device. 

  1. Slide to remove the Outdoor Contact Sensor from its base.
  2. Press and hold the pinhole reset button using the end of a paperclip or similar tool. The LED light at the front of the device flashes green. Continue holding down the pinhole reset button until the LED light turns red, then release.
  3. Now re-add the Outdoor Contact Sensor to your Ring Alarm by tapping on
    Set Up a Device
    from the main menu, then
  4. Follow the onscreen instructions. Scan the QR code on the Sensor as instructed or enter the 5-digit PIN code.
  5. Carefully remove the batteries,* then re-insert them. Press and hold the button on the front of your Contact Sensor for 5 seconds, then slide the Sensor back onto its base. Tap
    Got It
    to proceed.
  6. You’ll receive confirmation that the Outdoor Contact Sensor was added successfully. If not, choose the option to “Try Again.”

While repeating the setup process, when you’re prompted to pull the battery tab, you may have to use a small tool, such as a micro screwdriver, to carefully remove the coin cell batteries from the casing of your Outdoor Contact Sensor, then reinsert them.

Last updated 7 months ago