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vacuum plug in warm when unplugged?

brad_casie

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Joined
Dec 25, 2008
Messages
4
i was recently using the vacuum and when i unplugged it after using it for a little while i noticed that the plug in was warm, is that normal, i dont think i have ever noticed that in any appliance before, i tried a couple different receptacles and still the same thing.....
 
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walrus

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Nov 12, 2008
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11,674
Location
Maine
i was recently using the vacuum and when i unplugged it after using it for a little while i noticed that the plug in was warm, is that normal, i dont think i have ever noticed that in any appliance before, i tried a couple different receptacles and still the same thing.....

Depends on the Vac. If its a good one, its draws some amps, therefore its likely to get warm. I have an old Electrolux, the cord end is warm. A bad connection can cause it also.
 
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nadogail

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Jan 23, 2009
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31,910
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Coronado, CA
This is an indicstion of a bad connection. I have seen this in buildings with aluminum wiring. With the power to the receptacle (Plug In) turned off; open it up and look for the following:
Wire color other than copper - Dark Gray is BAD Copper Oxide is a good conductor Aluminum Oxide is a very poor conductor.
Discolored Insulation
Loose Screws
If you have Aluminum Wire; you also have my sympathy.

I would wire brush, sand or scrape the oxide from the conductors and replace the receptacle with one approved for use with Aluminum Wire. In years past we used to wire nut copper pigtails to aluminum, using an anti oxide compound inside the wire nut.

This may no longer be an approved repair.
 

rinny_tin_tin

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Joined
Dec 20, 2008
Messages
636
Location
Northern Virginia
i was recently using the vacuum and when i unplugged it after using it for a little while i noticed that the plug in was warm, is that normal, i dont think i have ever noticed that in any appliance before, i tried a couple different receptacles and still the same thing.....

Yes its normal if you can touch the metal parts without burning yourself. Its called I^2R heating and occurs with many appliances today. If however, the temperature is so great that its burning adjacent components, charring the cable or making it turn brown, then its not normal. You'll notice this occurrence with higher amp draw equipment, such as motors that come with their own pigtails for use with a plug receptacle.
 

Charles (in GA)

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Jan 11, 2006
Messages
12,489
Location
50 mi south of Atlanta
i was recently using the vacuum and when i unplugged it after using it for a little while i noticed that the plug in was warm, is that normal, i dont think i have ever noticed that in any appliance before, i tried a couple different receptacles and still the same thing.....

Both my Kenmore house vac and my Craftsman shop vac do this. The wire is minimally sized on the house vac so it can be kept small and easily retract in a build in reel. No, it doesn't hurt anything, it is designed with this in mind.

Charles
 
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