How Do You Reset An ADT Alarm System?

It's possible that the security system has to be reset, which may be done by typing your code into the system and then pressing off twice. Keep in mind that you need to exit Test Mode on the machine. To remove the system from test mode and resume normal operations, go to MyADT.com, click on My Alarm from the System Management option, and then pick Stop Test from the drop-down menu that appears.