To stop your ADT alarm from beeping with a low battery, press OFF or # on the keypad to silence the trouble beep immediately. If those do not work, try the sequence OFF, 1 OFF, CANCEL, or * and then changing the arming level; the low-battery message will remain on the display until the battery is recharged or replaced.
Stop your ADT alarm beeping from low battery: keypad sequences
On many ADT systems, pressing OFF or # on the keypad silences the low-battery trouble beeps. For other systems, ADT lists these keypad sequences: OFF, 1 OFF, CANCEL, or * and then changing the arming level. Use these sequences to stop the beeping immediately. The low-battery message stays on the display as a reminder until the battery is recharged or replaced.
Why your ADT alarm beeps and what the low-battery message means
The beeping is a low-battery trouble alert. ADT says the message remains on the keypad as a reminder that the battery needs attention. If you silence the beep without addressing the battery, the beep will return because the underlying condition has not been resolved.
Troubleshooting when the beep keeps returning
If the beeping returns after you silence it, the battery issue has not been resolved and the system still needs attention. Check that the battery is properly seated and that all connections are secure. Check the battery connections for looseness or corrosion; gently tighten terminals or clean them with a soft cloth and rubbing alcohol. Power cycle the system by unplugging it from the wall outlet for a few minutes, then plugging it back in to reset the system and potentially stop the beeping. ADT’s help pages do not list exact battery part numbers or model-specific steps for this issue.
Replacing the battery to clear the alert
The low-battery condition clears only when the battery is recharged or replaced. ADT’s battery help pages do not give a fixed time limit for how long you can wait before replacement, only that the message remains until the battery is addressed. Test the system after replacing the battery by arming and disarming, triggering sensors, and checking that the beeping has stopped.
When to contact ADT support
If the beep cannot be silenced with the keypad sequences, or if it keeps returning after you install a new battery, the issue is not fully resolved and you need further help from ADT support.
Frequently Asked Questions
Why is the alarm beeping?
ADT says it is a low-battery trouble beep.
Will the beep stop by itself?
No. ADT says the low-battery message stays until the battery is recharged or replaced.
Is there an app setting to turn it off?
What if I press OFF or # and the beep stops but the message stays?
That is normal. The message stays as a reminder until you recharge or replace the battery. The beep will return if you do not address the battery.
Can I use a phone’s Do Not Disturb mode to stop the beeping?
No. The beep comes from the keypad, not your phone. Phone settings like Do Not Disturb and Silent Mode have no effect on the alarm keypad.
