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rcknrllme

07:55AM | 04/26/09
Member Since: 04/25/09
9 lifetime posts
Bvelectrical
i am working on a ceiling fan for a friend. there is 2 ceiling fans with the same problem (1 in each bedroom). they are both ran off the same breaker. the problem being that when you turn the fans on all you get is a low hum and the blades barely move. 1 fan is stronger than the other therefore i was thinking that for whatever reason maybe they was ran in series, but that don't seem to be the case. however i can not find a brand name on the fans i did find a model number, but that hasn't done me much good. these fans have a rheostat control on the wall n both have lights. when i looked at the wiring all the wires coming from the fan are green. when the breaker was off the wire connected the the neautral wire from the breaker still had a spark. i would appreciate any help i can get on this.

doug seibert

06:44PM | 04/27/09
Member Since: 08/10/02
842 lifetime posts
We can't see it.....

You need to be our eyes and tell us what's there.....how its done.....who done it....and what the VOM reads......just about the time you tell us everything YOU have the "Eureka" moment and find the problem

Huh?....."when i looked at the wiring all the wires coming from the fan are green"

"when the breaker was off the wire connected the the neutral wire from the breaker still had a spark"......then you probably have multiple circuits inter-connected......or ?

One of the best troubleshooting approach is to "Divide and Test".....

Disconnect one fan and see if it works......remove the Rheo and try On/Off

"......measure Once.....cut Twice....

throw that one away and cut a new one...."

rcknrllme

08:27AM | 04/28/09
Member Since: 04/25/09
9 lifetime posts
well first off i didn't do any volt readings which i know should have been my first rule of thumb. i was short on time when i looked at this and really just tried checking the obvious like disconnected wires, crossed wires etc. etc. i only pulled apart 1 fan, but both fans are identical. i just recently installed another fan and all the wires were color coded and from what i have rread of other fans they are all basically coded the same. blue, black, and white, but there was only green wires coming from the fan, i will try and get some pictures tomorrow and post up here. i did disconnect the rheostat and was unsuccessful. both the rheostat and the wall switch are boxed in with just 2 black wires coming from them. i could not find the brand name of this fan the only thing i got was the model cs-5201 and model number 0001231 i have tried googling them numbers and the only thing i get is places trying to sell fans. when i go back to work on this i was planning on just starting at the breaker box and start following wires. my biggest question was, what would make the fan only hum when turned on? both fans have the same problem. i didn't know if maybe someone knew right off the top. both rooms and a bathroom are ran off the same breaker. i know having the fan instructions would be a big help too. my friend says the person that had the house before her installed them and she has lived in the house for about 6 years.

doug seibert

08:49AM | 04/28/09
Member Since: 08/10/02
842 lifetime posts
Of course you need some voltage readings....

When you removed the rheostat did you connect the black wires to each other ? we need to get the power to the fan......

Is there a single rheo for both fans ?

Did the fans work correctly for the last 6 years ?

"......measure Once.....cut Twice....

throw that one away and cut a new one...."

rcknrllme

08:57AM | 04/28/09
Member Since: 04/25/09
9 lifetime posts
according to my friend these fans have never worked correctly. when i hooked the single pole switch up without the rheostat i hooked 1 black to the red and 1 to the white thinking i needed the ground to complete the circuit. i did check the voltage from the breaker and it gets the 123 volts i was negligent in checking the voltage at the fan tho which will be the first thing i do when i go back. i knew to do that was just complacent on my part. i was thinking this would be an easy n quick fix which doesn't seem to be the case. in the junction box there is 2 white wires with the black tape (not hooked to the fan) which i know means its a hot wire. the person that had the house before had done a lot of rewiring and i'm not sure exactly how he ran the wires which will be something i look at next time too.

rcknrllme

12:12PM | 05/16/09
Member Since: 04/25/09
9 lifetime posts
ok i got some readings i only took them off of 1 fan tho i was short on time. i disconnected the wall switch and took my readings there. they had installed 12/3 wiring and the readings went as such. the black and white i got 120v the red and white i got 32v the red and black i got 73v. when i did the reading at the fan i didn't get anything, but i'm assuming thats cuz the wires at the wall was disconnected. when i turned off the breaker to the room there was still power to the wall switch, but no power to the lights on the fan. this was before i disconnected the wall switch to get the readings. i hooked up a regular single pole switch to the wall and got nothing.
8622-ceiling_fan_problem

rcknrllme

12:14PM | 05/16/09
Member Since: 04/25/09
9 lifetime posts
these are the pix
8623-pictures

rcknrllme

12:15PM | 05/16/09
Member Since: 04/25/09
9 lifetime posts
see all the wires are green and these are the wall switches 1 single pole and the rheostat
8624-pix

rcknrllme

12:16PM | 05/16/09
Member Since: 04/25/09
9 lifetime posts
and this is what the fan looks like
8625-pix

doug seibert

03:06PM | 05/16/09
Member Since: 08/10/02
842 lifetime posts
Since the image quality sux......lets start:

You are using a digital VOM.....the "odd" voltages do not exist....they are phantom voltages....with ELECTRICAL work you are better served with an analog meter or neon tester or a lightbulb in a socket!

You have Two rooms/Two fans each with lights you have 4 switches....CORRECT?...... You can't connect two fans to one controller (unless it's something/special)

Switches Make-Break the HOT wire(s).....never the Neutral....

The "all the wires are green" comment....

LOOK at the wires that are connected.....someone has (illegally) used a piece of GREEN to make up ALL the pigtails in the box.....the actual connected wires are unable to be seen in the poor quality photos but they sure aren't green.......

So as an example in each room at the wall switches:

The Power White connects to the Fan White (via the 12-3 white)

The Power Black gets connected to each "switch"....

The Rheostat/switch gets connected to the Fan Black(via the 12-3 Black)...

The Dimmer/switch connects to the Light Blue(via the 12-3 Red)......

"......measure Once.....cut Twice....

throw that one away and cut a new one...."
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