Saturday, November 12, 2011

Help wiring a bathroom fan into an existing circuit.?

I've added an exhaust fan to my bathroom. I replaced a single switch box with a 2 switch box to have the light and fan at same place. Before adding the fan there was only 1 (14-2wire Black/White/ground) in the box. This was the switch for the light completing the connection to turn the light in the bathroom on. I've run the wire from the fan to this same box, not realizing the current setup. So there are now two wires in the box (14-2wire Black/White/ground) 1 to send the power up to the fan and one that is completing the connection for the bathroom light. Hopefully this all makes sense.





Is there a way to wire this so they are on separate switches? 1 to complete the connection to turn on the bathroom light? and one to send the power to the fan (with and without the light on).





Thanks in advance.


Jason|||The power to the light in you bathroom comes in to the light fixture and the black wire is run down to the switch for the light.


When you hook up the fan you need to run the white wire from the light fixture to the fan for load ground along with the bare copper wire for safety ground. You can use the black wire at the light switch and hook up a short jumper from the light switch to the fan switch and then run another black wire back to the fan.|||you do not have the neutral aka white wire that goes to the light fixture itself in the switch box to drive the fan. you have to get it by running a new wire from the light (existing) to either the switch and up or take it to the fan and wire the switch leg for it like the light is back down to the switch which you have already. a pain but it can't work without a neutral.

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