How do I change the code on my first alert alarm?

Asked By: Sarita Kharbouch | Last Updated: 8th January, 2020
Category: automotive auto safety technologies
4.7/5 (378 Views . 27 Votes)
How to Reset a First Alert Alarm Code
  1. Enter your four-digit master code via the control panel's number buttons.
  2. Enter the single-digit user number assigned to the code you want to change.
  3. Wait a few seconds; the control panel beeps when the code is deleted.
  4. Re-enter the master code, as in step 1, and press "Code."

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People also ask, how do I reset my First Alert Wireless smoke detector?

Perform a factory reset

  1. Open the Onelink Home app.
  2. Tap the name of your device.
  3. Tap the gear icon to open Settings.
  4. Tap Reset and Delete Device.
  5. After you reset the app, reset your alarm by pressing the Test/Silence button on your unit 3 times.

Secondly, how do I reset my alarm code? How to reset the installer code

  1. Unplug the transformer from the power source.
  2. Disconnect the battery.
  3. Plug the transformer back in.
  4. Reconnect the battery.
  5. Within 30 seconds of turning the alarm system on, press * and # at the same time.
  6. Enter *20.
  7. Enter a new 4 digit installer code.
  8. Press *99 to exit programming mode.

Thereof, how do I reset my First Alert smoke and carbon monoxide alarm?

To factory reset the First Alert Smoke Detector (ZSMOKE) and First Alert Smoke Detector and Carbon Monoxide Alarm (ZCOMBO)

  1. Make sure the device is powered.
  2. Press and hold the test button for 10+ seconds.

How do I reset my Honeywell alarm keypad?

How to Reset a Honeywell Alarm System

  1. Reset the master code by entering your four-digit security code.
  2. Enter "8" to get to the Settings menu.
  3. Enter your new master code twice and press "Enter."
  4. Press "1" once you have entered the new master code.
  5. Reset the Honeywell security alarm by unplugging the transformer to disconnect it from the power source.

26 Related Question Answers Found

How do I change my passcode on my ADT alarm?

Changing User Codes
To change the user codes in the ADT system with keypad controls, press the star key and then the number 5 to indicate you want to reprogram a number. Enter your four- or six-digit master code number. Select the user access code you want to change, identified by entering 01 through 32.

How do I reset my DSC alarm installer code?

Power up the panel, wait 10 seconds and power down. Then disconnect the jumper, and power the system back on. Performing a factory default will restore all system settings to their default. It will also restore the Master Code to 1234 and the Installer Code to 5555.

How do I change my DSC alarm installer code?

How do I change the DSC 1616, 1832, and 1864 installer code?
  1. Enter programming with *8-installer code (default is 5555).
  2. Go to section 006 to change the installer code.
  3. Enter a unique 4 digit code. The system should beep 3 times and exit back out.
  4. Press # to exit programming mode.

Where is the test button on a First Alert smoke detector?

Your units should be tested once per week, when possible. Regular testing with the "Test" button helps ensure that your alarm has a reliable power source. The test button is usually located on the side or top of your unit.

Why do my hardwired smoke detectors keep going off?


Electrical Power Surges
A change in the electrical current to the wired smoke alarm will cause the smoke alarm sound to go off when there is not smoke in the air. A loose wire in the smoke detector can also cause it to go off as the electrical current is cut off and then restored to the alarm.

Why does my First Alert smoke alarm keep going off?

It is normal for smoke alarms to go off and sound briefly (up to 5-10 seconds) when you install a new battery or when they are powered up. If the alarm continues to go off and no smoke is present, the cause may be one of the following: There may be insufficient battery power, try new batteries.

How do you disconnect a hardwired First Alert smoke detector?

Confirm whether the smoke detector is battery-operated or hard-wired. Grasp the detector in your hand and twist the unit in a counterclockwise rotation. This will free the body of the detector from the mounting bracket. Gently pull it away from the bracket when it is free.

Do you have to reset smoke detector after changing battery?

The only way to clear this error is to reset the smoke detector, which can be done by following these simple steps: Remove the battery from the smoke detector. With the battery removed, press and hold the test button for 15-20 seconds. Replace the new battery in the detector and plug in the power supply.

Where is the reset button on a hard wired smoke detector?

Take the smoke detector off its mounting bracket on the ceiling and disconnect the power cable connected to the smoke detector. Remove its battery, then press the “Test” button and hold it down for 15 seconds. An alarm will sound briefly, then the alarm will silence.

Why is my carbon monoxide detector chirping after I changed the battery?


The following conditions could cause your carbon monoxide alarm to chirp consistently: Low Battery Condition – The alarm will chirp once every 15 seconds to indicate the batteries need to be replaced. End of Life Warning – Seven years after initial power up, a Kidde CO alarm will begin chirping every 30 seconds.

How do you reset carbon monoxide detector after changing battery?

Press the Reset Button
In the case that there is a beep that occurs after every 30 seconds, you need to reset the device and replace the battery. The resetting can be done by pressing the reset button on the device.

Why does smoke detector still beep after changing battery?

Newer smoke alarms keep some errors in the processor. The smoke alarm must clear errors after the battery is changed, but it might continue to chirp even after you change the batteries. When this happens, the way to stop the chirping noise is to reset the smoke alarm to manually clear the error from the processor.

How do I reset my first alert security system?

How to Reset a First Alert Alarm Code
  1. Enter your four-digit master code via the control panel's number buttons.
  2. Enter the single-digit user number assigned to the code you want to change.
  3. Wait a few seconds; the control panel beeps when the code is deleted.
  4. Re-enter the master code, as in step 1, and press "Code."

Why is the red light flashing on my smoke detector?

The flashing red light gives a visual indication that the smoke alarm is functioning properly. It also indicates a working battery is connected to the smoke alarm.

Why do my smoke detectors keep going off for no reason?

Ionization smoke detectors can mistake dust for smoke. So if your ionization smoke detector is covered in dust, that's why it sets off the alarm even if there's no smoke. Warning: Doing this will move the dust and can cause the smoke detector to go off again.

Will taking the battery out of a smoke detector stop the beeping?

Removing the battery from a smoke alarm, also called a smoke detector, won't set the unit off and start the fire alarm beeping. Instead, it will likely do the opposite and disable the unit. Because of this, there is really only one reason for you to ever remove the battery and that is to replace it with a fresh one.