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Real alarm · Aico · carbon monoxide

Aico: CO alarm sounding

Carbon monoxide is likely to be present.

What you see
Red light
What you hear
Full alarm, loud and continuous

Do this first: the maker’s emergency instruction

Carbon monoxide alarm

Aico: a sounding CO alarm means carbon monoxide is likely to be present. Turn off any gas appliances, open windows and doors, and leave the property; ring the emergency number of your gas or fuel supplier; do not go back in until the alarm has stopped.

From Homeowner FAQs — Why is my alarm beeping? and Basic Alarm Fault Finding.

Smoke alarm

Aico: if the alarms are sounding there may be a fire — evacuate, and if in doubt always assume the fire is real (homeowner FAQ). The Ei650 leaflet: check doors for heat before opening, crawl low under heavy smoke, get out and meet at your prearranged place, call the Fire Brigade from a neighbour’s house or a mobile phone giving your name and address, and never re-enter a burning house.

From Homeowner FAQs — Why is my alarm beeping? and Battery Powered Smoke Alarms Ei650 Series — instruction leaflet (Rev 6).

What Aico says to do about this signal

  1. Follow Aico’s CO instruction (above).
  2. Aico’s fault-finding page: a CO alarm can be silenced only once during an activation, for 4 minutes, and not at all above 150 ppm — then you must leave and call your gas provider.

From Homeowner FAQs — Why is my alarm beeping? and Basic Alarm Fault Finding. If your alarm’s pattern is not exactly this, check the manual for your model: Aico models do not all use the same signals.

Other Aico signals

Real alarm on other brands

The same state sounds and looks different on each make — which is why a chirp pattern cannot be read without the brand.

Sources

Every line on this page comes from Aico’s own documents, read on the date shown. Nothing is taken from third-party code sites or other makes.