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Honeywell Smoke Detector - Low Battery

Learn how to troubleshoot and fix the low battery issue of your Honeywell Smoke Detector

Written by Ivan Lara

What You Need:

  • 1 – CR-123A Battery

Instructions:

  1. Ensure the panel is disarmed.

  2. Open the sensor by twisting the sensor cover counterclockwise.

  3. Remove the old battery.

  4. Wait 15–20 seconds.

  5. Install a replacement CR-123A battery.

  6. Remount the smoke detector by lining up the grooves and twisting clockwise.

  7. Check the panel to ensure the error has cleared.

If the error persists, please call our Account Specialists for further assistance

CA (587) 844-5377 | US (385) 832-9055

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