Still, an unexplained glow should never be ignored. Loose wiring, damaged connections, or electrical arcing can create resistance and excessive heat inside an outlet. Over time, these problems can damage wiring and increase the risk of an electrical fire.
Warning signs include a burning smell, buzzing or crackling sounds, a warm or discolored wall plate, flickering electricity, or breakers that repeatedly trip. If any of these appear, avoid touching or removing the outlet cover while power is on. If it is safe to do so, unplug connected devices and switch off the breaker controlling that circuit.
The safest choice is to have a qualified electrician inspect the outlet before using it again. Even if the glow ultimately comes from something harmless, sudden or unusual electrical behavior should be checked properly. When electricity is involved, treating unexplained heat or light cautiously can prevent a minor problem from becoming a serious hazard.
