Author Topic: Electric Fan  (Read 5498 times)

munch

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Electric Fan
« on: April 15, 2021, 05:52:39 PM »
The fan stopped working on my 30, so I began troubleshooting all the wiring for power and continuity. Everything checked out , so I decided to bypass the other stuff and put 12 volts straight to the fan to see if that was bad. I put 12 volts directly to the pigtail red and black wires coming from the fan and nothing. I assumed the fan went bad.

I bought another and decided to test it the same way before installing. Same results, nothing. Seems simple, what am I missing? Thanks guys

62131

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Re: Electric Fan
« Reply #1 on: April 15, 2021, 07:50:58 PM »
Yep that's pretty simple, did you check to make sure you had 12 volts

TFoch

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Re: Electric Fan
« Reply #2 on: April 15, 2021, 08:04:09 PM »
I hope you figure it out.  That is one reason I've always used mechanical fans.  If the engine is spinning, so is the fan.
Spending time with my grandkids gets in the way of finishing my car but I don't regret it!

munch

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Re: Electric Fan
« Reply #3 on: April 15, 2021, 08:13:08 PM »
Yep that's pretty simple, did you check to make sure you had 12 volts
Yes I did.

munch

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Re: Electric Fan
« Reply #4 on: April 15, 2021, 08:14:32 PM »
I hope you figure it out.  That is one reason I've always used mechanical fans.  If the engine is spinning, so is the fan.
Thanks Tom, I admit I'm puzzled...

62131

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Re: Electric Fan
« Reply #5 on: April 16, 2021, 07:05:31 AM »
Yep that's pretty simple, did you check to make sure you had 12 volts
Yes I did.

Well with 12 volts and a good ground  ???

chopper526

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Re: Electric Fan
« Reply #6 on: April 16, 2021, 08:53:42 AM »
Munch, when put a direct 12v to the fan it should work. Like 62131 said, double check: good power source, good ground, new fan?....it should work. If the fan is new, any chance it could be bad? You can do a continuity test to make sure the fan is good.
Tighten it up til it strips, then back it off a quarter turn

sixball

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Re: Electric Fan
« Reply #7 on: April 16, 2021, 02:20:57 PM »
That is what I hate about electricity, you can not see it flow like gas, water, and oil unless you uses some kind of complicated tool. Then you don't know if the part is broken or the tool. The closest I can get is a "spark" test.  :o Could there be some kind of internal switch?
The probability of life originating from accident is comparable to the probability of the unabridged dictionary resulting from an explosion in a printing shop.  Edwin Conklin

munch

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Re: Electric Fan
« Reply #8 on: April 16, 2021, 02:55:13 PM »
That is what I hate about electricity, you can not see it flow like gas, water, and oil unless you uses some kind of complicated tool. Then you don't know if the part is broken or the tool. The closest I can get is a "spark" test.  :o Could there be some kind of internal switch?
I don't know, I guess so. The only wires coming out of the fan are a black and red and that tells me hot and ground. I put a test light in the connection, and I am sending it 12 volts.

62131

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Re: Electric Fan
« Reply #9 on: April 16, 2021, 03:07:00 PM »
That is what I hate about electricity, you can not see it flow like gas, water, and oil unless you uses some kind of complicated tool. Then you don't know if the part is broken or the tool. The closest I can get is a "spark" test.  :o Could there be some kind of internal switch?
I don't know, I guess so. The only wires coming out of the fan are a black and red and that tells me hot and ground. I put a test light in the connection, and I am sending it 12 volts.
 

If you verified 12 volts that sounds like bad fan, this might be a stupid question but is it a 12 volt fan?

munch

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Re: Electric Fan
« Reply #10 on: April 16, 2021, 06:42:19 PM »
That is what I hate about electricity, you can not see it flow like gas, water, and oil unless you uses some kind of complicated tool. Then you don't know if the part is broken or the tool. The closest I can get is a "spark" test.  :o Could there be some kind of internal switch?
I don't know, I guess so. The only wires coming out of the fan are a black and red and that tells me hot and ground. I put a test light in the connection, and I am sending it 12 volts.
 

If you verified 12 volts that sounds like bad fan, this might be a stupid question but is it a 12 volt fan?
Yes it is. I was using a test light as an extension of the power lead so I could verify with the light. I took this out attached the power lead directly and it worked. I thought putting the test light as an extension of the power lead would do just that. Apparently not. What am I missing?

62131

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Re: Electric Fan
« Reply #11 on: April 18, 2021, 01:10:19 PM »
Is your test light the type that has a bulb in the handle with a  ice pick type probe and a wire with a alligator clip on it

munch

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Re: Electric Fan
« Reply #12 on: April 18, 2021, 02:22:36 PM »
Is your test light the type that has a bulb in the handle with a  ice pick type probe and a wire with a alligator clip on it
Yes it is

62131

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Re: Electric Fan
« Reply #13 on: April 18, 2021, 08:46:17 PM »
Is your test light the type that has a bulb in the handle with a  ice pick type probe and a wire with a alligator clip on it
Yes it is


Is the light LED or incandescent

themoose

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Re: Electric Fan
« Reply #14 on: April 19, 2021, 08:45:55 AM »
 Like the jumper wire, the 12 volt test light is used to isolate opens in circuits. But, whereas the jumper wire is used to bypass the open to operate the load, the 12 volt test light is used to locate the presence of voltage in a circuit and will not operate a load as in your case an electric motor.
Too soon we get old too late we get smart. One out of two ain’t bad 8)

 


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