Question about First Alert SA302 Dual System Smoke Detector

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I could not get to battery compartment of the first alert smoke alarm. Please tell me how to replace with new battery.

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Hold the entire smoke detector,turn it to the left or right,u will able to take the smoke detector out.The battery compartment is in the back.

Posted on Sep 09, 2010

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Smoke alarm beeping and can't find a battery compartment, wired


Some smoke detectors don't have a battery compartment they are called 10 year smokes which never last that long. Take off the wiring harness sometimes there is a door there to access the battery compartment, if there is not compartment check the sides of the unit for a pull out latch. If none of those exist you will have to buy a whole new unit, I would recommend staying away from a 10 year and get something replaceable.

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See the instructions for that model. Sometimes you need to wait a minimum period of time between removal of the old battery and installation of the new one. Also make sure you are positioning the battery correctly; sometimes batteries can be put in backwards easily. It is also possible that the device is just bad and needs to be replaced.

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If the battery will not make a connection, it may not be installed properly. The connector requires firm pressure.

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1 Answer

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If after replacing the battery the alarm is still beeping, the smoke alarm is bad and needs to be replaced. Hope this answers your question. Best of luck!
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1 Answer

Need to make sure programmed


Program the Midland 74-109 Weather Radio
a) Turn unit on. Extend the antenna. Adjust volume up slowly; Do you hear anything? If not, try replacing the 9 volt battery with a fresh one, in the accessible battery compartment underneath the unit. Repeat above steps.
b) If no sound is heard, turn unit over and look for "WEATHER" slide switch on bottom. With unit on & volume adjusted to comfortable hearing level, slowly slide switch down (or up) through various frequencies [1)162.550, 2) 162.400, 3) 162.475, 4) 162.425, 5) 162.450, 6) 162.500, 7) 162.525] until voice transmissions are heard. This should be the closest National Weather Service (NWS) broadcast for your area. Check the NWS website at http://www.nws.noaa.gov/nwr/nwrbro.htm for your state, click on the state name, and look for the site name or site location nearest you. The frequency for that site should be the strongest, and appropriate for your area.
c) You can set the alert tone, for special weather alert broadcasts, on the bottom of the unit on the slide switch marked "ALERT". Set the switch to the desired type of alert: 1) LED [LED on top of unit (marked ALERT) lights up when alert is broadcast-no siren tone/alarm is heard] 2) LED & ALARM [LED lights up and alarm/ siren tone is heard] 3) VOICE [LED on top of unit lights up and voice broadcast is heard, only; no siren tone/alarm is heard].
d) Be sure to press the "ALERT" button on top of the unit and leave the volume at a comfortable listening level to hear weather alerts for your area (Alert LED on top of unit lights up to show Alert function is active). You can test the present volume level by pressing the "TEST" button. Be sure to press the "ALERT" button again after listening to the volume level to re-set the Alert function. You can listen to weather broadcasts anytime, by pressing the "WEATHER" button. After listening, be sure to re-press the "ALERT" button to reset the Alert function.
e) 9 volt battery life should last about 6 to 7 months, depending on how much unit is used an number of alerts received. Replace battery every 6 months, or when you replace your smoke alarm battery, or at beginning and end of daylight savings time. A 12 volt AC adapter to replace the battery, can be used. One should have been supplied with unit. If not, a replacement can be found at Radio Shack.
f) This should complete your Midland Weather Alert Radio Model 74-109 programming.

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1 Answer

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