4 wires in ceiling outlet. How do I combine to wire a ceiling fan?


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Old 02-02-14, 10:36 AM
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4 wires in ceiling outlet. How do I combine to wire a ceiling fan?

I have a switched ceiling outlet with 2 black and 2 white wires in it (no ground) How do I connect these to wire my ceiling fan.(black white and blue) ?
 
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Old 02-02-14, 10:38 AM
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When you removed the light.... was one of those white and black wires connected and wire nutted off ?
 
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Old 02-02-14, 10:55 AM
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I think so... but not positive. One wire (Black & white)comes from the switch and the other is the power wires(?) If I use my meter, I have 100 between the white power wire and the black switch wire.
 
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Old 02-02-14, 10:59 AM
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Do you want the fan and light to be controlled from the wall switch or do you want the light to be on the switch and use the pull chain for the fan ?
 
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Old 02-02-14, 10:59 AM
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110 volts between the switch back and power white..
 
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Old 02-02-14, 11:02 AM
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Fan and light can be controlled by the switch.. It really doesn't matter
 
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Old 02-02-14, 11:18 AM
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Connect the black hot wire to the white wire going down to the switch. Normally we would recolor that white wire a different color so that it doesn't get confused as a neutral. I usually used red, blue or black.

That leaves you a black wire at the ceiling that will connect to the fan/light blue and black wires.
The white at the ceiling will connect with the white of the fan/light.
 
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Old 02-02-14, 11:26 AM
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Which ever wiring diagram is easier....
 
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Old 02-02-14, 01:56 PM
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Fan and light can be controlled by the switch.. It really doesn't matter
If it doesn't matter to you, I'd wire it this way:
  • Add a pigtail if you need to to bond the metal ceiling box to ground. Splice all the ground wires including that pigtail together.
  • Splice the incoming black hot wire to the white wire going to the switch. Mark that white wire with some electrical tape to show that it's being used as a hot wire. Add the black wire from your fan/light combo to that splice.
  • Splice the white wire from the fan to the remaining white wire in the ceiling.
  • Splice the blue wire from the fan to the remaining black wire in the ceiling.
This will feed constant hot power to the fan motor. You can control that with the fan's pull chain switch. The switch will control the light.

Doing it this way insures that the fan motor will always have the full 120V it needs at startup and will let you install any kind of switch or dimmer to control the light.
 
 

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