Radio Frequency Interference Troubleshooting

AC Power Failure is a trouble condition that may affect your system's ability to function correctly. This trouble condition will appear when electrical power to the system has been interrupted. Your backup battery will provide power to your system while this condition exists.

Please refer to the following troubleshooting steps to resolve AC power failure issues that your system may be encountering.


Is an outside source causing interference?

  1. ​Check to see if an outside source, such as a powerful internet router or HAM radio, is causing the interference.
  2. If an outside source is responsible for the interference, unplug the outside source.
  3. Allow your system at least one hour to reset before turning on the source of interference. 
  4. If you have identified the outside source, it may be necessary to relocate the source of interference.

Do you have a malfunctioning zone?

  1. ​If an outside source is not responsible for the interference, you may have a malfunctioning wireless zone.
  2. Perform a system reset. This will clear the trouble condition if it is a temporary issue.
  3. If the problem persists, please refer to the Sensor Troubleshooting page.

Does your key fob have a stuck button?

  1. If an outside source is not responsible for the interference, you may have a keyfob or wireless keypad with a stuck button.
  2. Check the key fob or wireless keypad to see if a button is stuck. If so, try pressing down on the button and moving it around.

Unable to resolve your issue?

If you were not able to resolve this issue, make a note of the steps you tried. Please call 1-800-ADT-ASAP for assistance.