Home Security FAQs

We’ve compiled a list of frequently asked questions regarding your home security. If your questions or concerns have not been addressed in any section of the FAQs, please call 1-888-238-7374 (888-ADT-RESI) and an ADT representative will assist you.

General System FAQs

How does my ADT alarm system work?

Why is my motion sensor providing false detections?

Why does my keypad display "no ac"?

Why does my alarm system take so long to notify ADT?

Why is my system not communicating correctly?

I have call waiting on my phone line. Can that affect my service?

Why does my keypad display "not ready"?

What is an undefined signal?

What happens when I press the panic or fire alarm buttons on the touchpad?

If I lose power, will my alarm system still work?

Will VoIP work with my security system?

Service Related FAQs

What should I do if my technician does not show up as scheduled?

Why does my system show that ADT is "still working on it"?

What if my system isn't working right?

If there is a problem, can you turn my system off from the ADT offices?

My alarm when off accidentally, but I quickly put in the code and shut it off. I expected a call from ADT, but no one called. Why not?

Am I responsible for testing my system regularly?

If I have an emergency, should I call ADT first?

Who do I call for Alarm Monitoring Issues?

Who do I call to Schedule Service for my Security System?

Account FAQs

When my system was installed, I wrote a check to ADT, but it's not reflected on my first bill. Is there a problem?

Can I extend my warranty?

How do I change the people listed on my call list?

If I move, will I have to pay again to put a security system in my new house?