08/27/2026
Overheated Wires Are a Warning—Don’t Ignore Them.
When a 240-volt appliance like an HVAC system, water heater, range, dryer, EV charger, or other high-demand equipment starts acting differently, it could be telling you there’s an electrical problem.
One potential cause is overheating wiring.
Electrical connections can generate excessive heat when a connection becomes loose or when a circuit is carrying more current than the wiring or equipment is designed to handle. Over time, that heat can damage insulation, wiring, breakers, and other electrical components—and in serious cases, create a fire hazard.
⚠️ Warning signs you shouldn’t ignore:
A 240V appliance suddenly stops working or works intermittently
Breakers repeatedly trip
Lights or equipment flicker when large appliances operate
A panel, breaker, outlet, or disconnect feels unusually warm
You notice a burning or melted-plastic smell
Buzzing, crackling, or unusual electrical sounds
Discoloration or visible signs of overheating
If a 240V appliance isn't operating correctly, don't keep resetting the breaker or assume the appliance itself is bad. The problem could be somewhere in the electrical circuit supplying it.
Turn the equipment off if you can do so safely and have a qualified electrician inspect the system.
At Thompson Electric, our electricians troubleshoot electrical problems to find the root cause, not just the symptom. Catching a loose connection or overloaded circuit early can prevent equipment damage—and potentially a much more serious situation.
📞 615-823-7207
🌐 thompsonelectricinc.com
📍 Serving Lebanon, Mt. Juliet, Gallatin, Hendersonville, Nashville, Brentwood, Franklin, Murfreesboro, Smyrna, La Vergne, Nolensville, Portland, Green Hill, Hermitage, Donelson, Old Hickory, Bellevue, Rockvale, and surrounding Middle Tennessee communities.
Don’t ignore the warning signs. Electrical problems rarely fix themselves.
