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bathroom fan wiring
Old 10-13-2008, 08:53 PM   #1
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bathroom fan wiring

for some reason, this diagram provided doesnt seem right to me. i feel like i'd be hooking up a sure-fire circuit trip!!!

Can you look at figure five (page 8) and explain that to me? It seems I would be hooking up the white from the breaker to both the white and the black, then the black from the switch to both the white and black...and a jumper between white and black? then the ground to the black as well?


There are 3 wires coming from the fan housing...white black and green, which i hooked up like it were a normal light...and only the fan works (there's 2 receptacles...black for fan plug and white for light plug....reversing them shows that only the black receptacle is working now...)

Doesnt make sense to me.....

http://www.nutone.com/PDF/InstallGuides/763RLN_769RLins_87538.pdf
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Old 10-13-2008, 09:13 PM   #2
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There are two sqaure figures (receptacles?)at the top of fig 5 where the wires are going....if there are two individual terminals in each of these figures(receptacles), then it all makes sense.....the drawing makes it look like the wires are connected to the same point in each 'receptacle' which wont work. Maybe one receptacle is bad.....do you have an ohmmeter handy?

hey....you dont really need the light anyway!
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Old 10-14-2008, 09:32 AM   #3
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That sure is a terrible diagram. You want to connect the white wire from the fan and the white wire from the light together, then connect this to the white wire from your power source.

Similarly, connect the black wire from the fan and the black wire from the light, but connect this to the black wire from your switch .

The green wires are ground wires and all of these should be connected together and grounded to the fan housing.

The plugs will be making some of these connections, but think of it as if the plug terminals were separate wires. Hope I haven't confused you.
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Old 10-14-2008, 01:18 PM   #4
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thats the problem....you see, there are only three wires total coming from the entire fan assembly. i figured there would be two sets of each....and it'd be no problem

worst case, i can splice both the fan and light into one plug and plug it into the receptacle that works....but i'd rather not jury-rig it
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Old 10-14-2008, 01:34 PM   #5
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I have no problem reading the schematic, it's your descriptions that have me puzzled. Green is ground so that eliminates one wire. Black is the hot line and white is neutral. If these 3 are the only wires coming out of the fan unit, then the schematic doesn't match what you have (you should have 2 hot lines - 1 for the fan motor and 1 for the light and there should be some way to identify which is which). There needs to be a separate hot line to the fan motor and the light if you are going to be able to control them with separate switches. If one switch controls all, then hook the black to the line from your switch and the white to the common neutral and you're good to go.
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Old 10-14-2008, 09:02 PM   #6
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Quote:
Originally Posted by ronin View Post
I have no problem reading the schematic, it's your descriptions that have me puzzled. Green is ground so that eliminates one wire. Black is the hot line and white is neutral. If these 3 are the only wires coming out of the fan unit, then the schematic doesn't match what you have (you should have 2 hot lines - 1 for the fan motor and 1 for the light and there should be some way to identify which is which). There needs to be a separate hot line to the fan motor and the light if you are going to be able to control them with separate switches. If one switch controls all, then hook the black to the line from your switch and the white to the common neutral and you're good to go.

Bottom line is there are only 3 lines coming out of this entire unit. The schematic surely doesnt match, but it's the same as the written directions and still results in one or the other working. Thus, my confusion
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Old 10-15-2008, 04:52 PM   #7
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I am reminded of a comedian whose advice in these situations is this:

1) when doing something like this, safety first- can your wife climb on the ladder and do the wiring?

2) when changing the lightbulb in the bathroom, always precede the instructions to wife with "first you fill the tub with water".

Sorry I could not help with the diagram.
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Old 10-15-2008, 05:14 PM   #8
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You might want to try calling that toll free 800 number under "If You Need Assistance Or Service" in the waranty box.
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Old 10-15-2008, 11:46 PM   #9
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you only need three wires. according to the diagram there are only three wires. If one of the receptacles does not work properly, fix it/ replace it or get a whole new unit. the hot and nuetral are jumpered together with pigtails. Can you take a picture of the receptacles? are you making the wire nut connections or are they already done?
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Old 10-16-2008, 05:49 PM   #10
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the rceptacles and associated wires are not visible other than from the front...so i cant see the pigtails or lack thereof.

i rigged it and it works fine, just wish it wasnt a PITA


could be a coincidence, but when i was at Home Depot, I stopped by the fans to look at another one (open the box and take a peek). someone had already opened one up, knocked the knockout out, and had the instructions open to the wiring page. maybe a whole batch went out wrong?


i ended up splicing the 2 receptacles together-probably a firehazard....
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