Remove the alarm from the ceiling or wall.
Open the cover and remove the battery.
Press and hold the test button for 15-30 seconds.
This will completely reset the smoke detector and drain all other charges inside.
How do I reset the first warning 9120b?
Follow these steps to reset the alarm:
- Disconnect all power (remove the battery if an alarm is on, turn it off, and if it’s a wired alarm, disconnect it from all wires)
- Hold the test/mute button for 20 seconds.
How do I reset the smoke detector after replacing the battery?
Remove the detector from its mounting bracket and turn off the power. Remove the battery from the smoke detector. Once the battery is removed, press and hold the test button for 15-20 seconds. Replace the new battery in the detector and turn on the power.
Why does my smoke detector signal the first warning?
Probably a factor as to why they are doing so poorly. Any time your smoke alarm continues to sound, replace the battery immediately. Poor connection to AC or AC/DC smoke detectors. AC alarms will sound every 5 seconds if the interconnect is grounded.
How to deactivate the smoke detector at the first warning?
First disconnect AC power from the switch or fuse box. Then remove the battery from the smoke detectors with a spare battery. Finally, press and hold the test button for 5-10 seconds to release the shunt circuit.
Do I need to reset the smoke detector after replacing the battery?
The only way to fix this error is to reset the smoke detector, which can be done by following these simple steps: Remove the battery from the smoke detector. Once the battery is removed, press and hold the test button for 15-20 seconds. Replace the new battery in the detector and turn on the power.
Why is the red light on my smoke detector flashing?
A flashing red light gives a visual indication that the smoke alarm is working properly. It also indicates that the working battery is connected to the smoke detector.
Why does my wired smoke detector keep shutting off?
Electric shocks
Changing the electrical current to the smoke detector will mute the smoke detector when there is no smoke in the air. A loose wire in the smoke detector can also cause it to shut down when the power goes out and then return to alarm.
Locate the reset button on the surface of the smoke detector. Hold the position for 15 to 20 seconds, then relax.
Why does my smoke detector keep ringing after I replace the battery?
If you’ve replaced the fireplace detector’s battery and it’s still ringing, you may think your detector is faulty. Remove the detector from its mounting bracket and turn off the power. Remove the battery from the smoke detector. Once the battery is removed, press and hold the test button for 15-20 seconds.
Why does my first smoke alarm keep ringing?
It is normal for the smoke detector to chirp and beep briefly (up to 5-10 seconds) when installing a new battery or when turned on. If the alarm continues to sound and there is no smoke, the cause may be one of the following: The battery may not have enough charge, try new batteries.
Why won’t my smoke detector go off?
To reset the fire alarm and prevent the smoke detector from going off: Remove the battery from the smoke detector (if equipped). With the battery removed, press and hold the test button for 15-20 seconds. Replace the new battery in the smoke detector and turn it on.
How to prevent a smoke detector alarm?
Why is there a cable smoke detector?
- Locate the reset button on the surface of the smoke detector.
- Hold the position for 15 to 20 seconds, then relax.
- Wait a few minutes and listen to the tweet again.
