Rob_Pilgrim Posted December 18, 2023 Report Share Posted December 18, 2023 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 Quote Link to comment Share on other sites More sharing options...
green-foam Posted December 18, 2023 Report Share Posted December 18, 2023 Hi, the aico Ei141RC is an ionisation smoke alarm and is obsolete, I would suggest that the "symptoms" you mention are an indication of end of useful life.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 Quote Link to comment Share on other sites More sharing options...
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