ADT® Authorized Dealer Serving Lake Havasu City, Kingman, & Western Arizona
Mother and daughter in front of a window with an ADT contact sensor
August 05, 2026

Tips For Troubleshooting Your Home Alarm System In Lake Havasu

System malfunctions and false alarms can be exasperating, and even more concerning, might prevent your home’s security from working the way it should. Fortunately, most problems, from dead batteries to false alarms, are simple to remedy. Take a look at our recommendations for troubleshooting your home alarm system in Lake Havasu. We’ll help you keep your family safeguarded and your system operating as it should.

Test Your Home Security System In Lake Havasu

One sensible way to troubleshoot your property’s defense is to test it yourself! Modern systems allow you to put them in test mode to avoid prompting an emergency call. After switching to test mode, follow these steps:

  • Arm your system as you would when heading out.
  • Open a window or door that uses a contact sensor, or try to trip another device. Close the window or door once you’re done so it doesn’t trigger the alarm when you switch out of test mode.
  • Let the alarm go off for 60 seconds to ensure communications with the security company and to create an entry in the alarm system log.
  • Continue testing sensors as you wish
  • Inspect the alarm’s activity log to validate that everything’s working.

No need to worry, monitoring agents can tell that your system is being tested. Just be sure to switch off test mode when you’re done. It’s wise to test monthly or anytime you make changes to your home’s internet or phone service.

Check The Position And Condition Of Motion Sensors

Although an essential part of your alarm system, motion detectors are well known for false alarms. Prevent them with some simple troubleshooting.

  • Conduct a visual check. Are there objects that could move within the detection path of the sensor, like a curtain caught in a breeze?
  • Is the sensor covered in dust? Cobwebs, dirt, and debris can result in issues. Check to confirm the device is clean.
  • Does the motion detector have pet immunity you can turn on? Some models can be set to ignore pets up to 100 pounds.
  • When was the battery replaced? Low batteries might affect performance or cause false alarms.
  • Is a heat source affecting the sensor? Excessive heat from direct sun or a fireplace can trigger an alarm.

Keep Batteries On Hand And Pay Attention To Low Battery Notifications

One helpful perk of the latest home security systems is that they’ll tell you when batteries are getting low. If your system uses a app or control panel, you’ll often find messages there. Depending on your alarm, you could hear an occasional beep when batteries are getting low. 

Contact sensors, smoke detectors, motion sensors, and other wireless tools have batteries that should be replaced every so often. It’s best to keep batteries around and set a replacement schedule. Top systems also have a rechargeable backup battery for the main control panel. This backup battery helps keep your system functioning if you have a power outage and should charge back up once the electricity is working again. If it doesn’t recharge, you will need to replace it.

Troubleshooting Is Effortless With ADT Home Security In Lake Havasu 

As the leading name in home security, ADT builds systems that offer superior functionality and protection. Switching to test mode is simple through MyADT.com or the ADT+ app, and you’ll always get notifications when a sensor battery is nearing depletion. Contact Secure24 Alarm Systems, an authorized ADT dealer, to learn more and design a system perfectly suited to your Lake Havasu home. Dial (928) 888-9023 or fill out our form today!

Start the Home Security Cost Quiz to Receive Instant ADT System Suggestions