The National Council for Home Safety and Security reports that, “Homes without a security system are 300% more likely to be burglarized.” A properly functioning window security system is an essential part of the protection package any home should have. Naturally, with any technology, security equipment owners need access to some basic user information. Below are some general troubleshooting tips for handling basic issues that can come up involving window sensors and alarms.


What can impact window sensors?

  • A change in phone service
  • Switching to DSL
  • Remodeling activities tripping alarms
  • Loss of electrical power
  • Household pests triggering alarms
  • Decorations and ornaments interfering with security system
  • Business displays and advertisements may interfere with the system’s arming

How often should window alarms be tested?

Routine window sensor testing is important to keeping your window alarm system communicating properly with your home security monitoring company. Test your security system, including window security components monthly. Also test after making a change to your phone line, cable service or internet service.

How do I test my window security system?

Our advice—test your system routinely. To perform a test of your home window security system:

  1. Call your security system monitoring facility. Ask the customer service specialist to place your account on Test Mode.
  2. Trip each sensor carefully, one at a time.
  3. Jot down the location of each sensor after you trip it.
  4. After you complete your testing, call your monitoring center again, and ask which alarms were received during the test.

How do window security sensors work?

A window or door security component is usually a two-piece sensor unit consisting of magnetic contacts. While the system is armed, windows and doors bearing sensors are kept closed. If a window sensor falsely triggers an alarm, it may be due to one of several causes:

  • Separated sensor parts — If a window is opened, the two magnetic parts of the sensor become separated from one other, causing the alarm to be triggered. If your door or window sensor is causing false alarms, the door or window may not be securely closed
  • Sensor damage — The sensor may be damaged.
  • Mounting surface condition — Contracting or swelling of the window or door or frame, as a result of changed weather conditions can cause separation of the sensor parts and trigger alarms.

If you experience problems with false alarms triggered by window sensors, check for the above causes in order to help you determine whether or not a service call for help from your security company is necessary.

What should I do if the system is beeping due to low battery?

Most security systems begin chirping or beeping when a complete power outage occurs, or when the system is not successfully recharging its backup battery. Some systems can silence the low battery alert beeping by simply pressing the # button or the OFF button on the keypad. But, if this attempt does not does not stop the beeping, see your security system user manual for system-specific instructions on turning off the alert sound indicating a low battery.

To obtain a replacement battery, see your user manual to identify the battery ordering specifications for the particular battery you need, or contact your security system company’s customer service center for guidance on ordering the battery.

How do glass break detectors work?

An important feature of today’s state-of-the-art home security systems is the glass-break detector—an alarm component that can detect high and low frequencies in the sounds of glass shattering. Breaking dishes, slamming doors, or even barking dogs or keys clinking have been known to trigger false alarms from glass break detection sensors.


What if a sensor falls of a window or door?

If a sensor contact becomes displaced, you can simply set your security system to temporarily bypass the affected zone where the contact problem is located. This keeps the remainder of the security system armed, bypassing only the affected zone(s).

See your system user manual for detailed instructions on how to bypass a zone, or contact your security company’s monitoring center for guidance in bypassing zones.

Protect America

Protect America offers U.S. American consumers the best in modern home security equipment and professional monitoring. We have been protecting families and their home with 24/7 professionally monitored home security systems for the past 25 years. Our customers enjoy free installation, fixed monitoring service rates, and guaranteed competitive price matching. It’s easy to see why Protect America has been awarded the Consumers Digest Best Buy designation nine times.

For More Information

The U.S. Justice Department found that in 28% of home burglaries during a 3-year period, a household member was at home when the break-in happened. This ratio drives home the importance of residential security systems. If you’re ready to look into getting a monitored home security system, call Protect America at phone 1-855-995-6398 for a free quote.