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Honeywell Carbon Monoxide - Loss of Supervision

Learn how to troubleshoot and resolve “Loss of Supervision” issues with your Honeywell Carbon Monoxide Detector

Written by Ivan Lara

Instructions:

  1. Ensure the panel is disarmed.

  2. Open the sensor by rotating the casing counterclockwise.

  3. Remove the battery.

  4. Wait 15–20 seconds.

  5. Replace the battery with a CR-123A battery.

  6. Fully close the sensor by placing it on mounting bracket and twisting clockwise until it clicks into place.

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

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

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