Home Improvement > Home SafetyDecember 31, 2010

Smoke Detector Problem

I have a hard-wired smoke detector that chirps between midnight and 6:30 AM. The heater goes on at that time and the chirping stops. The house temperature is set at 60 degrees during the chirping times. This just started. Any ideas as to why this occurring?

By Ken from Entiat, WA

Answers

Read answers for this post below.

By
07/10/2011

Oh dear... I tried to check the circuit breaker and did a test on it. Well, I now have disconnected ALL the alarms in the house. Prior to this only two were chirping. They are still chirping but there is no green light on. I will try to remove and replace those new batteries. (The old were still good.) It seems I have made matters worse. I have had my system about 4 years. Any help would be appreciated. Thank you.

By
02/12/2011

When smoke alarm batteries die they start chirping in the middle of the night when the temp in the house drops. I googled smoke alarms to find out why mine has space for two 9v batteries. I think it may be because it has a lite in it, but not sure. Anyway that's how I found out about the middle of the night chirping!

By
02/02/2011

It's 4: 30am. I've been up since 2am with my smoke alarm going off constantly! We tried everything and my frustrated hubby went back to bed and covered his head to block out the sound! Even the dog wanted out and continued her blissful sleep outside!

Unfortunately, I couldn't sleep with that loud noise for the next hour or so, climbed up on a kitchen stool every 20mins to press the button to shut it off. It would stay quiet for about 20mins and then back on again. In the meantime, I decided to see if I could get some online help and found this site.

Thanks for all the tips. I was surprised but gratified to find others have experienced this too and what would you know? Most of the problems were at night. Murphy's Law! Then to annoy me further, the TV started an alarm test!

Anyway, I didn't have a can of air handy, (which I will now get) so I opened the windows for a bit and tried some of the other suggestions until on one of my trips back from the detector to bed, I noticed the thermostat battery in the living room was low so the heat was not on in that part of the house. I changed the battery and voila! silence!! I've waited 30 minutes and no more alarm so I guess I can sleep now, for all of 2 hours before have to be up.

Thanks everyone for all the helpful tips when my 'support system' here bailed out on me!

By
01/01/2011

All smoke/carbon alarms are designed to only last for 10 years, after 10 years or after a fire, they need to be replaced with new ones. If you burn a fireplace, they need to be changed out more often.

Sounds like the sensor is going out, and when the HVAC system comes on, it creates enough air current to remove dust or debris on it.

I am a fire fighter, and one of our biggest issues is people think they are good for a lifetime. They aren't.

By
12/31/2010

You might try changing all batteries if you haven't already. Also check the breaker for the smoke detectors, make sure it isn't tripped if not turn breaker off and check all wires to that circuit be sure they are tight. We have the same type of system when we change the batteries when turn the breaker off and than change the batteries and then turn it back on it resets the system. If it is only one detector chirping the problem with be with that detector and not the whole system. Hope this helps!

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