Ei141RC Aico Alarm - Flashing red light & intermittent beeping

[Rob_Pilgrim]

Hi team,

Thanks for your help.

I have the Ei141RC Aico smoke alarm - wired with 9V battery backup

I have 10 of them through my property - all connected on one circuit 

The green lights are constantly on for all of them meaning mains power seems stable 

I have recently replaced all batteries with 9V Duracell's and held down reset test button for 10 seconds after installing to reset 

I have two issues

1. The red light should be flashing every minute but on the downstairs one they flash every 1 second and the upstairs one they are blinking constantly / multiple times per second. It's distracting when trying to sleep.

2. The 4 alarms on our top floor will start beeping randomly. They beep every second for 10-20 seconds then stop. Then start again a few minutes later.

Would love your help diagnosing and fixing

Rob

[green-foam]

Hi, the aico Ei141RC is an ionisation smoke alarm and is obsolete, I would suggest that the "symptoms" you mention are an indication of end of useful life.

The direct replacement is the Aico Ei146e Click me