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Replaced battery, test button will not work - First Alert SA302 Dual System Smoke Detector

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Hello make sure that the cover is on properly or the button will not reach the inside contac also make sure you have a fully charged batery sometimes sitting in the store so long they go dead or they are old stock with very little charge left.
if all else fails replace the unit better safe than sorry.

good luck

Posted on Dec 10, 2008

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Posted on Jan 02, 2017

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My remote stopprd working! I replaced the batteries and it still does not work! FCC ID. M8CRL. 103


Disconnect power at the source, then remove batteries from remote and press all buttons to eliminate a stuck button problem. Reinstall batteries. Restore power and test operation.

Jul 05, 2016 | Dryers

1 Answer

Replaced batteries on a Fortress 520 but the led still shows rb to replace battery


Have the UPS perform a self test. Pres and hold the on button or the test button.

Feb 12, 2014 | Powerware Best Power Fortress UPS System

1 Answer

AT&T 974 phone intercom button flashing and won't work


1) test the adapter if working with another phone and replace it
2) if working clean the contacts batteries with pencil eraser, and see if working.
3)test the batteries voltage is o.k wit VOM, and replace if necessary
4) test the power supply from the base if is o.k otherwise you must open and repair or go to the repair shop for fix it.
5) Read the owner manual section troubleshooting for help
God bless you
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Sep 17, 2012 | Lands Phones

1 Answer

No reponse when pressing any button on Harmony 650


i would suggest these items below hope they will help otherwise order another one from amazon or elsewhere

Logitech Harmony 650 Troubleshooting Universal remote released in 2009. Easily identifiable by the Color Smart Display.
Buttons Not Responding When you press a button, nothing happens.

Dirt in the Key

If there appears to be dirt or another object blocking the button, remove the button and clean the area using a Q-tip and some rubbing alcohol.

Physical Switch is Broken

If the problem persists after cleaning, the button switch may be broken and needs replacement. Check out the replacement guide for how to do this.
Battery Drains Quickly Even while not in use, the battery runs down abnormally fast.

Faulty Battery

If your batteries are leaking, remove the batteries and clean the socket before inserting new ones. If that is not the case the batteries may have also been drained and are in need of replacement.

Screen not Dimming Properly

Check to make sure that there are no buttons that are stuck by removing the batteries and massaging the buttons. If that does not work then try switching it in and out of safe mode a few times. If the problem persists then you will need to replace the screen. Refer to the replacement guide for instruction on how to do this.
Device Resetting The remote resets all connections with other devices seemingly at random.

Faulty Battery Connections

Check to make sure that your batteries are well seated in the connectors. If they are, check to make sure they are not dead by replacing them. If the remote still does not work, try testing the battery connectors to see if they are loose. If they are, consider replacing/repairing them.
Cracked/Broken Case Often when dropped, the case may break in various places.

Broken Case

Test the face plate of the remote by gently pushing on it. If you see a a crack or a break then it might be time to replace it, this is merely a cosmetic issue, but can become a problem when buttons can become dislodged.
Unresponsive Remote The remote simply won't function or respond to commands.

Faulty Motherboard

Test the remote by viewing the infrared LED with a digital camera or a cell phone camera. Press any button on the remote and watch the screen to see if the LED lights up, and if it does not check to make sure that your batteries are not dead. If the remote is still not functioning properly or at all that could mean that the circuits have shorted out on the motherboard and it may need to be replaced. Use the Motherboard Replacement Guide to help you with this.

Mar 04, 2018 | Logitech Harmony 650 Remote Control

2 Answers

The buttons on my TI-30X IIS are not working except for the 0, equal and second buttons


Sounds like you have a shorted out circuit card. Try replacing the batteries first to see if the power returns to the keys. If that doesn't work, you will find it cheaper to find a replacement calculator vs sending it to an authorized factory repair center. Hope this helps.

Dec 11, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Only one side of the outlets work...


From the User Manual:

“OVERLOAD/CHECK BATTERY” LED: this red LED lights continuously after a self-test to
indicate the capacity of the battery-supported outlets has been exceeded. To clear the overload, unplug some of your equipment from the battery-supported outlets; then use the ON/OFF/TEST button to run a Self-Test. If the UPS continues to detect an overload, remove more equipment and repeat the self test until successful.

CAUTION! Any overload that is not corrected by the user immediately following a self-test may cause the UPS to shut down and cease supplying output power in the event of a blackout or brownout.

The LED flashes to indicate the battery needs to be recharged or replaced. If the LED flashes (and a continuous alarm sounds) during a prolonged blackout or brownout, the UPS’s batteries are nearly out of power; you should save files and shut down your equipment immediately.

If the LED flashes following a UPS self-test (after the UPS is turned ON), it may indicate that the battery needs to be replaced. Allow the UPS to recharge continuously for 12 hours; then use the ON/OFF/TEST button to run a Self Test.

If the LED continues to flash, contact Tripp Lite for service. Should your UPS require battery replacement, visit Tripp Lite on the web at www.tripplite.com/support/battery/index.cfm to locate the specific replacement battery for your UPS.

Hope this helps!

Jul 25, 2010 | Tripp Lite Internet Office INTERNET550U...

1 Answer

My remote stopped working with my television. all I need is a manual that I cannot find. for CL007 remote


Remotes are pretty simple things to fix. a few problems, tests and fixes.
1) test remote closer to device - if it works then replace batteries.
2) If some buttons fail to work that used to work - disassemble and clean muck off board and rubber contact pad.
3) remote will not work at all at any distance - use camera on phone to see IR led operation when pushing buttons on remote - could be batteries, IR led failure or ceramic resonator failure - you need test equipment to faultfind.

The only parts that tend to fail on a remote are batteries, IR LED, Ceramic resonator, and dirty/wet board/rubber contact pads

Mar 19, 2010 | Zenith ZN620 Remote Control

1 Answer

My apex digital converter's remote no longer works. Therefore I have no TV picture because the apex wants to be re-installed due to loss of electricity temporarily.


Remotes are pretty simple things to fix. a few problems, tests and fixes.
1) test remote closer to device - if it works then replace batteries.
2) If some buttons fail to work that used to work - disassemble and clean muck off board and rubber contact pad.
3) remote will not work at all at any distance - use camera on phone to see IR led operation when pushing buttons on remote - could be batteries, IR led failure or ceramic resonator failure - you need test equipment to faultfind.

The only parts that tend to fail on a remote are batteries, IR LED, Ceramic resonator, and dirty/wet board/rubber contact pads

Mar 19, 2010 | Televison & Video

1 Answer

Camera battery is dead and was just bought a week ago


If the contacts have been cleaned in the battery chamber, check the lower contact post - it's spring loaded and often gets stuck and doesn't make good contact with the battery. A little WD40 usually will free it up. Your batteries are probably still good.

Oct 16, 2007 | Canon EOS-AE-1 35mm SLR Camera

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