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Tool Talk Discussion Forum

o/t hot electric cord

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amoa

09-27-2007 09:25:05




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The plug on our vacumn cleaner get warm when plugged in and use for 5-10 minutes, is this normal. thanks




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bill mar

09-29-2007 12:13:37




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
with the quality of todays products i would have to say yes its normal for some warmth in the cord



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Charles (in GA)

09-28-2007 07:09:24




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
Cannister vac I've had since new has always got a little warm at the plug. Other vacs I've used also got warm. Wished they didn't but they do, cords undersized and/or poor plugs. Good thing about a vac is that its on and off while using it, and its not plugged in all the time. I think the vac makers know they can undersize and get away with it on a limited use device.

Charles



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Charles (in GA)

09-28-2007 07:08:50




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
Cannister vac I've had since new has always got a little warm at the plug. Other vacs I've used also got warm. Wished they didn't but they do, cords undersized and/or poor plugs. Good thing about a vac is that its on and off while using it, and its not plugged in all the time. I think the vac makers know they can undersize and get away with it on a limited use device.

Charles



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IH2444

09-27-2007 18:32:10




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
All 3 vacuums I have had in the past few years had the warm cord syndrome. they just build em too cheap. They pass UL cert if they do not catch on fire :) or pose a shock hazard.



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bill mar

09-27-2007 16:43:36




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
hate to say it, with the cheap manufacturing going on these days the cord getting hot may be normal



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jeffcat

09-27-2007 15:46:55




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
Ya find out that everything is right to the wall. If ya go one gauge larger then it fixes the heat but now ya can"t wrap the cord around something. Always something stupid. If you cut one of those cords open you will find the wires just go through a hole in the back of the blade. A real plug should be soildered or have a good clamp. That will make your plug hot and the rest of the cord too because of draw problems.

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JML755

09-27-2007 12:32:21




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
I agree with RobMD. It depends on the conductor size and the current running through it. If it's always run a little warm (especially if run for a long period of time), I wouldn't worry too much. Probably means the mfr undersized it slightly. I've had cords for drills, saws, fans, etc. get "warm". Don't expect a 1200 watt hair dryer cord to stay at room temperature if it's drying your teen daughter's hair for 30 minutes. All conductors generate heat to some extent. That's why there are different ratings for conductors in free air or part of multi-conductor cables.

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John T

09-27-2007 10:00:03




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
To quote my old friend Old "Nope not normal" I certainly agree. Its easy n cheap n certainly NOT rocket science to, at the minimum, buy n install a new quality plug but if it or the cord still runs too hot (and the receptacles not the problem) Id be wondering about the condition of the motor???

John T



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RobMD

09-27-2007 09:47:26




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
Have you ever changed the cord? Usually original cords are manufactured using the SMALLEST gauge wire so they can run using the amperage of the vacuum in a certain length of cord.

My kenmore vaccumm original cord gets pretty warm, kind of like hot chocolate lukewarm. I've used it for 4 years now, still the same.

Just another cost vs. benefit issue in manufacturing- saving money on copper wire. (i.e., really trying to shove that water down that small pipe)

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RustyFarmall

09-27-2007 11:16:47




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 Re: o/t hot electric cord in reply to RobMD, 09-27-2007 09:47:26  
Same here, although it's not a Kenmore. Can't blame it on the house wiring either 'cause I rewired not too many years ago and used all new #12-3 wiring.



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old

09-27-2007 09:45:22




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 Re: o/t hot electric cord in reply to amoa, 09-27-2007 09:25:05  
Nope not normal. Thats a sign of either the cord going south on you or thew motor drawing to many amps. Either way its not safe to keep using it till it has been checked out



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Vern-MI

09-27-2007 10:03:00




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 Re: o/t hot electric cord in reply to old, 09-27-2007 09:45:22  
Or it could be the Duplex outlet has lost the tension on the socket which pinches spade lugs on the plug and therefore have added resistance at that point. Our Hoover plug gets warm at the the Duplex but not hot. Does the plug fit tight in the duplex? Duplex outlets don't last forever and are cheap to replace.



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old art

09-27-2007 20:42:18




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 Re: o/t hot electric cord in reply to Vern-MI, 09-27-2007 10:03:00  
when replaceing the receptials buy20 amp receptials not the cheap one's they grip the prongs better.



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36 coupe

09-27-2007 14:59:33




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 Re: o/t hot electric cord in reply to Vern-MI, 09-27-2007 10:03:00  
Use a 20 amp rated outlet.Most 15 amp outlets have little contact area and will heat.The 20 amp outlets have a T shaped slot.



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