Question about Kidde PE120 Hardwire with Battery Backup Photoelectric Sensor Smoke Alarm

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Kidde pe 120 photoelectric sensor smoke alarm emits 3 "beeps" with a pause and then repeats until the 9vdc battery is removed. The house is not on fire and the 120vac power is connected. What might be the problem?

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  • 93 Answers

The 3 beeps, known as temporal pulse, is indicative of an alarm condition. If it stops without a battery, then the unit either does not have power or is otherwise defective.

Posted on Nov 20, 2014

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Posted on Jan 02, 2017

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frcs68
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SOURCE: 1 chirp every 30 seconds

it is not the battery problem, you need to get a replacement.
the circuite board is bad.

Posted on Dec 02, 2008

szanti
  • 36 Answers

SOURCE: kidde nighthawk Carbon Monoxide & Smoke Alarm single beeps

If detector is more then 5 years old it will beep every 30 seconde to wirn you the sensor in the detector needs to be replaced. bying a new detector would be better.

Posted on Sep 28, 2009

szanti
  • 36 Answers

SOURCE: KIDDE Nighthawk Carbon Monoxide alarm beeping

If detector is more then 5 years old it will beep every 30 seconde to worn you the sensor in the detector needs to be replaced. bying a new detector would be better.

Posted on Sep 28, 2009

  • 1 Answer

SOURCE: kiddie fire alarm model I12060, beeps once every

This happened to me, my smoke detector started chipping so I changed the batteries. A few seconds later it started chirping again. The answer is in the way you put the batteries in. The smoke detector allows you to put the batteries in wrong and makes a slight connector. This slight connector tricks the detector into thinking the batteries are weak. Simply turn the batteries around so the fat connector of the battery touches the skinny connector of the device. Mine was, fat side on the right.

Posted on Feb 28, 2010

  • 13 Answers

SOURCE: kidde smoke alarm won't stop chirping

Most smoke detecotrs have a limited lifespan of 5-10 years. On the underside of the detectors should be a sticker with installed dated or replace by date. If changing the batteries doesn't stop the chirping it is most like time to replace the detector. If you check the manufacturer website they will give you a life expectancy for your detector.

Posted on Mar 23, 2010

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