If none of the above works vacuum out the smoke alarms to ensure dust or insects Obviously, you had already switched on and off a few times, so this does not apply in your case. Believe it or not, a common fault is that the fuse is left switched off after the batteries are replaced, resulting in beeps once the backup battery is running low. Are the alarms less than ten years old? Once older they can become erratic. However, if possible it is recommended that the alarms are all powered from a dedicated circuit from the distribution board using 3 core and earth cable for safety during maintenance, as the interlink cable will carry power from live alarms on other power circuits.Yes, smoke alarms beeping for now apparent reason (especially in the night) can wear you down. To obtain a mains power supply, each alarm can be connected to the nearest lighting circuit using 2 core and earth cable with a separate, dedicated interlink cable connecting all alarms. Mains powered Ei Electronics smoke and heat alarms require a 230V AC power supply and up to 12 alarms can be hardwire interlinked in one system. Mains Powered Flashing Xenon Strobe (Red) Mains Powered Flashing Xenon Strobe (Clear) Mains Powered 5A Relay Module with Lithium Backup Battery

Mains Powered Locate, Silence & Test Control Switch Mains Powered Optical Smoke Alarm - 9V Alkaline Mains Powered Ionisation Alarm - 9V Alkaline Mains Powered Ionisation Smoke Alarm - Sealed Lithium Mains Powered Multi Sensor Smoke & Heat Alarm - Sealed Lithium

Mains Powered Heat & Carbon Monoxide Alarm - Sealed Lithium Mains Powered Optical & Heat Alarm - Sealed Lithium Mains Powered Optical Smoke Alarm - Sealed Lithium Mains Powered Heat Alarm - Sealed Lithium Please Note: The simple installation process of the easichange replacement kit negates the need of an electrician.

This alarm is also suitable for both the Welsh and Scottish updated 2022 legislation.Supplied with fixings 2 x screws and 2 x rawl plugs.Low power cell warning and LED indicator.Alarms that can be interlinked include:.A maximum of 12 units can be interlinked via 3 core cable.Suitable for installations complying to BS 5839-6: 2019 Grade D2.Replacement Ei141 ionisation smoke alarm detector head (supplied without base).Ei141RC ionisation smoke alarm with Easi-Fit base for quick installation (for new installations by a qualified electrician).Backup Battery: 9V alkaline backup battery (included).Power: 230V mains powered with back-up battery.The Ei141RC replaces the previous Ei141 model but can still be used to extend and interlink to an existing Ei140 system. This is the latest Ei141'RC' detector - now capable of interlinking with the Ei1529RC remote control switch. Mains powered ionisation alarm with hush button from Ei, available as a replacement smoke alarm detector head or complete with mounting base plate.

Ei 131 smoke alarm manual