Fault · Ei Electronics · smoke
Ei Electronics: Two chirps and two yellow flashes every 48 seconds
There could be a fault with the sensor.
- What you see
- Two yellow or amber flashes about every 48 seconds
- What you hear
- Two chirps about every 48 seconds
If it is sounding a full alarm instead: the maker’s emergency instruction
Smoke alarm
Ei Electronics: a continuous alarm from a smoke or heat alarm may mean fire — if in doubt, always assume it is real. Check doors for heat and use another route if one is hot; crawl low under heavy smoke; get out as fast as you can without stopping to pack; meet at your prearranged place; call the Fire Brigade immediately on a mobile or from a neighbour’s house, for every fire however small; never re-enter a burning house.
From Products FAQs — Why is my fire alarm beeping? / Why is my alarm beeping? and Ei3028 / 3018 Alarms Instruction Manual.
Carbon monoxide alarm
Ei Electronics: open doors and windows if it is safe to, turn off all fuel appliances where possible, and leave the property with the doors and windows open. Get medical help at once for anyone with symptoms (headache, nausea) and say CO poisoning is suspected. Ring your gas or fuel supplier’s emergency number. Do not go back in until the alarm has stopped, and do not use the fuel appliances again until an expert has checked them (for gas, a Registered Gas Installer).
What Ei Electronics says to do about this signal
- Replace the alarm.
From Products FAQs — Why is my fire alarm beeping? / Why is my alarm beeping?. If your alarm’s pattern is not exactly this, check the manual for your model: Ei Electronics models do not all use the same signals.
Other Ei Electronics signals
Fault 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 Ei Electronics’s own documents, read on the date shown. Nothing is taken from third-party code sites or other makes.
- Ei Electronics: Products FAQs — Why is my fire alarm beeping? / Why is my alarm beeping? — Ei 3000 series, 600 series, 140e series and CO alarms (FAQ). www.eielectronics.ie Checked 2026-09-29.
- Ei Electronics: Ei3028 / 3018 Alarms Instruction Manual — Ei3028 multi-sensor heat and CO alarm, Ei3018 CO alarm (document B20223 R5, Irish edition). www.eielectronics.ie Checked 2026-09-29.