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Old 10-17-2011, 10:35 AM
Chefguy Chefguy is offline
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Join Date: Jun 2003
Location: Portlandia
Posts: 39,916
If the OP replaced the outlet, then the next thing I'd check is where the wiring enters the outlet box. As mentioned, the insulation may be worn through and it's arcing against the metal enclosure.

Important note: TURN OFF THE CIRCUIT BEFORE ATTEMPTING TO DO THIS.