Assuming the ceiling fan also has lights then that is what the second lead is for. You can tie the black & blue together and attach them to black lead in the lighting box. The light and fan will come on together when you flip the light switch and you have to use the pull chain on it for control. ALWAYS connect the green ground wire to the house wiring ground. This is a SERIOUS safety and fire hazard issue if you do not.
to blk hot wire
The short answer is wire color to color. black to black, white to white, green or bare to green of bare.
Each color means a different thing and there are green ones, they are just not as common There should be a bare wire along with the red, black and green wires in the ceiling. It is possible that it was cut off short or tied up to the box somewhere. this is the same as the green wire.
Normally red or black is the hot wire and green is the ground. However someone may have used the green wire as the neutral wire which is normally white. Just connect the black wire from the light to the red wire and the white wire from the light to the green wire and see if it works. If not you have to pull the wires out of the ceiling box and see how they wired it.
Black to Black - Black from the ceiling is a hot wire and should be switched Red to Blue - Red wire is another hot wire and should also be switched White to White - White from the ceiling is the neutral and should not be switched. Your wall should have two switches, one will control the red wire, one will control the black wire. If you wire your fan as above, one switch will turn the fan on, the other will turn the light of the fan on.
If there are two black wires, it's possible that it was wired for a ceiling fan and that one of the wires is for the fan part while the other is for the light part. If so, one of the black wires may be switched while the other is always "on." Normally black is "hot" and white is "neutral" (NOT ground... ground is usually green).
The short answer is wire color to color. black to black, white to white, green or bare to green of bare.
Each color means a different thing and there are green ones, they are just not as common There should be a bare wire along with the red, black and green wires in the ceiling. It is possible that it was cut off short or tied up to the box somewhere. this is the same as the green wire.
Normally red or black is the hot wire and green is the ground. However someone may have used the green wire as the neutral wire which is normally white. Just connect the black wire from the light to the red wire and the white wire from the light to the green wire and see if it works. If not you have to pull the wires out of the ceiling box and see how they wired it.
Black to Black - Black from the ceiling is a hot wire and should be switched Red to Blue - Red wire is another hot wire and should also be switched White to White - White from the ceiling is the neutral and should not be switched. Your wall should have two switches, one will control the red wire, one will control the black wire. If you wire your fan as above, one switch will turn the fan on, the other will turn the light of the fan on.
add a lot of black!
green
no sparking fanThe white wire from the fan to the white wire from the ceiling get wire nutted together.The black and blue wire from the fan go to the black wire from the ceiling and all 3 get wire nutted together. Lastly the green wire from the fan and the bare copper wire from the ceiling get wire nutted together. 90% of fans are wired this way.
If there are two black wires, it's possible that it was wired for a ceiling fan and that one of the wires is for the fan part while the other is for the light part. If so, one of the black wires may be switched while the other is always "on." Normally black is "hot" and white is "neutral" (NOT ground... ground is usually green).
You may not have a ground wire in your older housewiring. Hook it somewhere to the metal plate that holds the fan to the box.
pink
Blueprint for Green - 2007 Ceiling and Geothermal Ditch 2-14 was released on: USA: 22 November 2008
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