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What Causes Electrical Problems in the St. George Heat? Living in St. George means dealing with long, dry summers and extreme heat. That heat doesn’t just affect your AC—it puts real stress on your home’s electrical system too. If you’ve noticed lights dimming or breakers tripping, it may not be random. Here’s what really happens inside your system during the summer: 1. Heat Expands Metal Parts Wires, breakers, and connectors expand when they get hot. Over time, this movement can loosen connections and cause arcing (tiny sparks inside your panel). That leads to buzzing sounds, flickering lights, or burnt smells. 2. Dust Buildup Acts Like Insulation Dust in St. George is everywhere. Inside a panel or outlet, it builds up fast. Dust traps heat and raises the risk of overheating. That’s one reason why outdoor equipment and garage circuits fail more often in the summer. 3. High Loads Push Panels to the Edge When your AC, fridge, dryer, and other appliances all run at once, your panel may hit max capacity. If it's older or undersized, breakers start tripping—or worse, fail to trip when they should. 4. Surge Risk Goes Up in Late Summer Monsoons and lightning bring power surges. Without good surge protection, sensitive gear like TVs, computers, and smart devices are at risk. What You Can Do – Watch for warning signs: buzzing, flickering, heat around outlets, or burning smells – Keep panels and outlets clear of dust and clutter – Don’t plug too many high-powered devices into one circuit – Schedule a quick inspection if your panel hasn’t been looked at in years Understanding how heat affects your home helps you stay ahead of bigger problems. Have questions? High Tech Electric has worked in St. George since 2006. We’re happy to explain what’s going on, even if it’s just for peace of mind.