Shoutout to the guy who told me to stop looping wire around the screw terminals

I used to wrap 3 wraps around every alarm panel terminal for years. Old timer in Phoenix pointed out it just creates loose connections over time. Has anyone else switched to straight-in terminations and seen fewer service callbacks?

2 comments

2 Comments

claire6414d agoTop Commenter

You ever get that one call where the customer kept getting intermittent alarms on a specific zone and you traced it back to a loose looped wire that just wouldn't stay tight? Straight-in termination changed my whole game, I swear. Had a buddy who fought with a Vista panel for two weeks before he figured out his loops were slowly backing off from temperature changes. The trick is to strip just enough insulation so the copper sits snug under the screw without any bare wire hanging out. It's one of those little things that makes a huge difference down the road, especially when you're working with smaller gauge stuff.

ericschmidt14d ago

You ever notice how those looped wires feel tight when you first screw them down but then the copper starts working itself loose over time? The old timer was right because loops create a spring effect, especially with thinner wire like 22 or 24 gauge. Temperature swings in attics or garages make that problem way worse, each expansion and contraction slowly backs the screw off. Straight in with a good strip job puts the wire flat and even under the screw head, so it can't push itself out. Claire nailed it about the bare wire hanging out, that's a short circuit waiting to happen if you're not careful. I switched five years ago and my callback rate on alarm panels dropped to almost nothing, it's one of those fixes that looks too simple to matter but actually solves a ton of headaches.