Kidde Smoke Alarm Flashing Red Every 5 Seconds - Yesterday Was Beautiful Commonlit Answerspost Versions My kidde smoke alarm (3 years old) went off for a few seconds at 1am last night in my daughters room. A few minutes later it started chirping and blinking red. There was no fire or smoke. Experiencing a kidde alarm blinking red can indicate various issues, such as low battery, an error mode, or end of unit life. Itโs crucial to refer to the smoke alarm userโs guide for.
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