We Value Your Privacy

We and our partners use technology such as cookies on our site to personalise content and ads, provide social media features, and analyse our traffic. Click below to consent to the use of this technology across the web. You can change your mind and change your consent choices at anytime by returning to this site.

Update Consent
Loading ...

How to Reset an ADT Alarm

Founded in 1874, ADT is a well-known international provider of residential alarms and security services. ADT residential alarms and security systems have sensors that carefully monitor your home and sound the alarm if any of its security zones are breached. After the security issue has been dealt with, you must reset your system sensors to silence your ADT alarm. Fortunately, this is a quick and simple process that can be completed from your ADT alarm control panel.

Loading ...
  1. Locate the "Reset" button on your ADT alarm system control panel.

  2. Press and hold the "Reset" button for two seconds, then release.

  3. Press the "*," "7" and "2" buttons in quick succession to reset your ADT alarm. The alarm sensors should reset and silence the alarm within seconds.

  4. Tip

    If the alarm continues to sound, the reset process was unsuccessful and the alarm is still detecting the problem that caused it to activate. Repeat the process to reset the security system sensors and silence the alarm.


    The need for frequent and unexplained alarm resets may indicate an underlying mechanical issue. Contact ADT customer service for warranty and repair information.

Loading ...

About the Author

Megan Mattingly-Arthur has been writing professionally since 1998. She has contributed to various publications, including "Teen Voices" and "Positive Teens" magazines, as well as a book, "The Young Writer's Guide to Getting Published." Mattingly-Arthur is studying travel and tourism through Penn Foster Career School.

Loading ...