Blackened Duplex Plate

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  #1  
Old 11-09-05, 08:07 PM
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Blackened Duplex Plate

I've seen blackened marks on duplex plates in several homes I've been in. The marks are usually about the size of a quarter. The receptacles usually are working fine, nothing feels loose, and no fuses are blown. Any suggestions?
 
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  #2  
Old 11-10-05, 05:26 AM
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Location: Central New York State
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These are burn marks, probably from repeated sparks. They might be because someone is plugging in and unplugging a device when it is turned on, or they might indicate a receptacle that is in need of replacement because the connections inside are getting loose.
 
  #3  
Old 11-10-05, 12:03 PM
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Might not be burn marks. Could be dirt from air flowing though because the house old and poorly insulated/sealed.
 
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