System Maintenance
How to Prevent False Alarms: 8 Common Causes and Proven Solutions
Updated April 2026 | By Berkley Security Inc. | 7 min read
Quick Answer:
The top causes of false alarms are user error (forgetting to disarm), pets triggering sensors, and low sensor batteries. Prevention: use pet-immune motion sensors, set 30-45 second entry delays, train all household members, and schedule annual professional maintenance. False alarms cost $50-$200 in fines and can degrade police response priority for your address.
Over 90% of security alarm dispatches are false alarms. This wastes police resources, costs homeowners money in fines, and most dangerously, can cause police to deprioritize your address when a real emergency occurs. The good news: nearly all false alarms are preventable with proper setup and maintenance.
The 8 Most Common Causes (and Solutions)
| # | Cause | Solution |
|---|---|---|
| 1 | User error (forgot to disarm) | Set 30-45 second entry delay. Train all users. Post instructions near keypad. |
| 2 | Pets triggering motion sensors | Install pet-immune sensors rated for your pet's weight. |
| 3 | Low sensor batteries | Replace every 3-5 years. Replace immediately on low-battery alert. |
| 4 | Loose/misaligned door sensors | Tighten mounting. Realign magnet. Replace adhesive if peeling. |
| 5 | HVAC drafts moving curtains | Relocate sensors away from vents. Adjust sensitivity. Use dual-tech sensors. |
| 6 | Insects/spiders on sensors | Clean sensors quarterly. Use sensor covers. Pest treatment near sensors. |
| 7 | Unsecured doors/windows | Fix loose latches. Add door sweeps. Use window locks before arming. |
| 8 | Weak door latches (wind opens) | Install deadbolts. Add strike plate reinforcement. Fix warped frames. |
False Alarm Fines in Mississippi
Most Mississippi cities follow a tiered fine structure:
- First 1-3 false alarms per year: Warning or no charge
- 4th-6th false alarm: $50-$100 per occurrence
- 7th+ false alarm: $100-$200 per occurrence
- Excessive false alarms: Alarm permit revocation possible
Beyond fines, excessive false alarms cause police to assign lower priority to your address. This means slower response when you actually need help.
Prevention Best Practices
- Train everyone in the household on proper arming, disarming, and canceling
- Post disarm instructions near the entry door for guests, pet sitters, and cleaners
- Use unique codes for each person so you know who forgot to disarm
- Set adequate entry delay (30-45 seconds gives time to reach the keypad)
- Test monthly by putting the system in test mode and walking each zone
- Schedule annual maintenance with your security company for professional inspection
- Replace batteries proactively on a schedule, not just when the warning beeps
- Update contact info with your monitoring company when phone numbers change
Having False Alarm Issues?
We diagnose and fix false alarm problems. Sensor replacement, pet-immune upgrades, and system recalibration.
Schedule Service CallWhen to Call Your Security Company
- Any sensor triggers a false alarm more than once
- Low-battery warnings on any sensor
- Panel beeping or displaying error codes
- A sensor that was recently impacted (door slammed, child tampered)
- New pets in the home (upgrade to pet-immune sensors)
- New household members who need training and individual codes
Frequently Asked Questions
What causes false alarms?
User error, pets, low batteries, loose sensors, HVAC drafts, insects on sensors, unsecured doors, and weak latches. User error is #1.
How much are false alarm fines?
$50-$200 per occurrence after the free allowance (usually 1-3 per year). Excessive false alarms can result in permit revocation.
How do I stop false alarms?
Train all users, use pet-immune sensors, set 30-45 second entry delays, replace batteries proactively, and schedule annual maintenance.
Do pets trigger alarms?
Standard sensors detect pets over 15-20 lbs. Pet-immune sensors ignore animals up to 40-80 lbs while still detecting humans.
How often should I test my alarm?
Monthly self-test (call monitoring first to put in test mode). Annual professional inspection for signal, alignment, and firmware.
What happens when a false alarm dispatches?
Police respond, find no threat, log it as false. Wastes resources, may result in fines, and can cause lower priority for your address.
Zero False Alarms Is the Goal
Professional installation, proper sensor selection, and annual maintenance prevent virtually all false alarms.