⚠
warning Garrison
Error Code Red LED flashes every 60 seconds with a quick beep every 60 seconds
Indicates low battery warning.
? What Causes This
Batteries are missing or low on power in the unit.
✓ How to Fix It
Install or replace two AA batteries immediately to restore full functionality of the CO alarm.
Source: page 13 of the official manual
From the manual
This error code appears in:
Garrison 043 6119 2