Stopping an electrical outlet from sparking requires immediate action to eliminate the electrical fault causing the discharge. First, immediately shut off power to the affected outlet by flipping the corresponding circuit breaker at your home electrical service panel. Second, unplug any appliances connected to that receptacle and inspect the plug prongs for carbon buildup or damage. Third, remove the wall plate and replace the worn-out receptacle. You can troubleshoot electrical shorts safely by isolating power first. You can verify that your corrective action is successful when shutting off the breaker stops the hazard, and installing a new, properly wired tamper-resistant outlet eliminates future sparking when plugging appliances in.
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