!!
critical Sanctuary

Error Code Red & Green LED illuminated for 3 seconds

Low Battery Warning - battery power is critically low.

? What Causes This

Safe batteries are depleted or nearly depleted.

How to Fix It

  1. Immediately replace the 9V battery in the lock face.
  2. Use a fresh alkaline 9V battery.
  3. Do not mix old and new batteries or different battery types.

Source: page 9 of the official manual

From the manual

Manual page 9 — Sanctuary error Red & Green LED illuminated for 3 seconds

This error code appears in:

Sanctuary Sanctuary Safe