Pro tip: The simple fix that stopped false alarms on my last 3 installs

I had a customer in Phoenix last month who kept getting false alarms from motion sensors. After chasing wires and swapping batteries for two days, I noticed the unit was mounted right above a floor vent. That AC kicking on and off was shifting the air temp just enough to trip it. Once I moved the sensor 2 feet to a wall with no vent nearby, the problem stopped completely. I've since checked vent placement on my last 3 installs and found the same issue twice more. Has anyone else run into this with HVAC vents or other air sources causing motion sensor issues?

2 comments

2 Comments

oscarthompson28d ago

Man that's a great catch. Vent placement is such an easy thing to overlook.

beth_sanchez4728d ago

Had the exact same thing happen with a unit near a bathroom return vent. Drove me nuts for a week before I figured it out. Solid advice.