I bought a bathroom vent fan today, the one that was in there hasnt worked since we bought the house. Anyways, i have a black wire, and a white wire coming from the light switch on the wall ran up to the ceiling where the fan is, and a black, white, and GREEN comin off the new fan i bought. Do i need to get in the attic and run a ground wire from outlet to fan? Or are the black and white good enough? The old fan didnt have a ground wire, just the other 2. Any info is greatly appreciated. Thanks
Green wire should be screwed into the inside of the receptacle box or pigtailed to the bare copper wire in the back of the box. If neither a bare wire or a green screw is present, call an electrician to run proper wiring to the box