I'm trying to install several ceiling fans for our newly built house. I've noticed the wires have a ground (metal wire), white (assume hot), black (neutral), and a red wire. What's the red wire for? I know there's a wall switch for the fan.

Is one of the white/red for the switch and the other for always on (hot) for the fan light? Is there a building standard for the red color?

The ceiling fan has the following wires; white (hot), black (neutral), blue (light) and green (ground wire).

Adding Country/Location: USA, Florida

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The ceiling fan unit has a fan and a light. So, I'm assuming I should connect the fan in a way so that the light can be turned on without having to turn on the wall switch.

Black - Black
Red - Blue
White - White
  • Could you add which country are you in? In US black=hot and white=neutral, so it's better to have your country information so you won't get misleading info. – user12075 Sep 8 '18 at 15:17
  • Added. Country: USA. House was built in Florida. – jjwdesign Sep 8 '18 at 15:24
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    Your assumed way is usually correct, just to add green - copper. But are you sure you want "light can be turned on without having to turn on the wall switch"? The red wire from the ceiling is usually the switch-controlled hot, so if you connect red-blue then the wall switch would control the light. – user12075 Sep 8 '18 at 16:27
  • Can you post a picture of the wiring diagram for the fan? And do you have a tool to check the voltage at the wires (DMM, non-contact pen type, etc)? From white (neutral) to hot (black and red?) you should have 120vac either all the time or when you flip the switch. – Rodo Sep 8 '18 at 16:44

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