User's Manual

1 Beep every minute.
Amber LED ash once every
48 seconds, green LED off.
No beeping.
Green LED on.
2 Beeps every minute.
Amber LED ash twice every
48 seconds, green LED off.
3 Beeps every minute.
Amber LED ash three times
every 48 seconds, green LED off.
Low batteries.
Normal operation.
Carbon monoxide alarm
error.
Product expired.
(10 year typical life)
What You Hear / See What It Means
Maintenance
Use
Replace batteries.
No action.
Replace unit with same brand.
Replace unit with same brand.
What To Do