What issue might overheating wires indicate according to Technician A?

Overheating wires often indicate a problem with the wire itself, and broken strands within the wire can lead to poor conductivity and increased resistance, which generates heat. When a wire has broken strands, the current flow is not as efficient as it should be, causing localized heating. This overheating can lead to further damage, such as melting of insulation or even complete failure of the electrical circuit.

In contrast, a short circuit typically results in excessive current flow, causing immediate overheating and possibly tripping a circuit protection device. Faulty connectors may cause poor electrical contact, but they usually do not cause the wire itself to overheat unless there's significant current passing through insufficient contacts. Normal operation would not result in overheating of wires, as a properly functioning electrical system should maintain acceptable temperature levels under load. Therefore, the indication of broken strands aligns most closely with the symptoms of overheating wires.