Electric Fan relay wiring
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I have my constant 12v source going from my alternator to terminal 30 on the relay. My switched ignition source (plugged into male ign spade on fuse box) goes straight to a terminal (power in) on my temp controller. The second terminal on the temp controller then connects to terminal 86 on the relay.
Are you saying that I should connect my constant 12V source to the temp controller(ultimately terminal 86), and my switched power source to terminal 30?
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Which can be quite misleading if a person does no know where to attach the end if this a wire in relation to the relay.
DUB
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I have my constant 12v source going from my alternator to terminal 30 on the relay. My switched ignition source (plugged into male ign spade on fuse box) goes straight to a terminal (power in) on my temp controller. The second terminal on the temp controller then connects to terminal 86 on the relay.
Are you saying that I should connect my constant 12V source to the temp controller(ultimately terminal 86), and my switched power source to terminal 30?
Are you saying that I should connect my constant 12V source to the temp controller(ultimately terminal 86), and my switched power source to terminal 30?
I know what it deos and supposed to do...but not seeing how they want it wired has me confused.
I fell you are correct by having your constant 12 volt source at terminal 30.
And if you took the controller out of the equation. Using the IGN terminal in your fuse panel to supply switched power to terminal 86 is GOOD also.
And if you have your ground for the relay terminal 85 grounded.
And wire from terminal 87 on the relay going to the fan motor.
When you turn your key on the fan will run. And if you turn the key off...it should stop.
Then it is just figuring out the wiring for the controller....which is where I am lost due to knowing what it is doing when the sensor gets to temp and makes the controller do something.
DUB
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I have my constant 12v source going from my alternator to terminal 30 on the relay. My switched ignition source (plugged into male ign spade on fuse box) goes straight to a terminal (power in) on my temp controller. The second terminal on the temp controller then connects to terminal 86 on the relay.
Are you saying that I should connect my constant 12V source to the temp controller(ultimately terminal 86), and my switched power source to terminal 30?
Are you saying that I should connect my constant 12V source to the temp controller(ultimately terminal 86), and my switched power source to terminal 30?
As i already posted, even though you say it's ignition switched the control circuit is still keeping the relay on. If the ignition turned off all power to the control circuit there would be no power to turn on the relay with the key off.
Did you check that the ignition source does go off with the key?
Do you have some other wire connected you didn't describe?
Is the controller a temperature switch with 2 terminals or something more complex?
Last edited by lionelhutz; May 11, 2018 at 06:36 PM.
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Simple test-
Next time the fan continues to run- pull the wire at the fusebox.
If that stops it- then you need to find another source- tapping right off the column mounted ignition switch - or at the radio would work. Then see what happens.
If it continues to run after pulling the wire @ the fusebox- go to the relay and pull (cut) the "controlled" wire on terminal 86-
If the fan continues- you've more than likely got a bad relay- or an incorrect one (foglight/timed/internal diode type)
If the fan stops when you pull 86 @ the relay- then something is wrong at the imperial 226203 controller.
Let us know what happens-
I hope I clarified it for you.
Richard
Next time the fan continues to run- pull the wire at the fusebox.
If that stops it- then you need to find another source- tapping right off the column mounted ignition switch - or at the radio would work. Then see what happens.
If it continues to run after pulling the wire @ the fusebox- go to the relay and pull (cut) the "controlled" wire on terminal 86-
If the fan continues- you've more than likely got a bad relay- or an incorrect one (foglight/timed/internal diode type)
If the fan stops when you pull 86 @ the relay- then something is wrong at the imperial 226203 controller.
Let us know what happens-
I hope I clarified it for you.
Richard
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No. The control circuit is the circuit that controls the fan, in this case the coil of the relay and the temperature switch which control when the fan in on or off.
As i already posted, even though you say it's ignition switched the control circuit is still keeping the relay on. If the ignition turned off all power to the control circuit there would be no power to turn on the relay with the key off.
Did you check that the ignition source does go off with the key?
Do you have some other wire connected you didn't describe?
Is the controller a temperature switch with 2 terminals or something more complex?
As i already posted, even though you say it's ignition switched the control circuit is still keeping the relay on. If the ignition turned off all power to the control circuit there would be no power to turn on the relay with the key off.
Did you check that the ignition source does go off with the key?
Do you have some other wire connected you didn't describe?
Is the controller a temperature switch with 2 terminals or something more complex?
Thread Starter
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Joined: Oct 2015
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Well, the problem was my switched power supply. It was always hot. Changed over to switched and everything is working great. Thanks for all the help! It is always the simple things that get me. I just “knew” that I had my switched power source correct, such a DA.
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From: Charlotte NC
It can happen to me at times where I would SWEAR that I have it correct ..and when I backtrack due to it is not working as I need it to work...it had changed...which often times makes me
DUB
Last edited by DUB; May 12, 2018 at 05:00 PM.
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