Guys,
I have a set of Twin thermos if believed to be AU or at least late model falcon...
One has 2 wires, red and black.
The other has 3 wires, red, black and white.
Black is earth on both and when power is on red both work the same and at the same speed fine.
Im wondering what the white wire is for? when i put power on it and leave earth on black the fan also fires up the same as if power was on the red, no speed change....
Im thinking its an extra power wire for the A/C call to one fan on the falcons???
anyone know for sure???
screwy
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Late model falcon thermofan question
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Late model falcon thermofan question
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I can't remember the colours but did find them through googling but the fans work as follows in a Ford:
The PCM allows three options. The first is for no signal and no fans. The second involves a signal from EDF1, which runs the fans in series at low speed. The third involves a signal from EDF2, which runs the fans in parallel at high speed.
The PCM allows three options. The first is for no signal and no fans. The second involves a signal from EDF1, which runs the fans in series at low speed. The third involves a signal from EDF2, which runs the fans in parallel at high speed.
well one of the 2 fans only has 2 wires so its a fixed speed.... im assuming that reversing the 2 wires around just makes it go backwards like any other fan......
The one with 3 wires, if i hook the same red and black wires, it runs at the same speed as the other one....
So as mentioned, i guess if the red and white have power and black as earth that single fan must go faster or slower...
I guess just having both fans with black and red connected and same speed should do the trick anyways..... ill just leave the white wire off....
Best thing is only 1 needs to run and idle to keep the car cooler then it did with the clutch fan, which is promising for the overall temp of things in hard conditions etc.
cheers for the help
Screwy
The one with 3 wires, if i hook the same red and black wires, it runs at the same speed as the other one....
So as mentioned, i guess if the red and white have power and black as earth that single fan must go faster or slower...
I guess just having both fans with black and red connected and same speed should do the trick anyways..... ill just leave the white wire off....
Best thing is only 1 needs to run and idle to keep the car cooler then it did with the clutch fan, which is promising for the overall temp of things in hard conditions etc.
cheers for the help
Screwy
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so am i correct in saying that both fans. black is earth?
then basically one fan runs at one fixed speed with a red power wire....
the other fan runs with 2 different speeds? a red wire or a white wire on its own is one speed ( the same speed as the other )
and both wires together to power with black to earth is a higher speed???
Is this correct? i dont want to try it and blow something up.
screwy
then basically one fan runs at one fixed speed with a red power wire....
the other fan runs with 2 different speeds? a red wire or a white wire on its own is one speed ( the same speed as the other )
and both wires together to power with black to earth is a higher speed???
Is this correct? i dont want to try it and blow something up.
screwy
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Opposite Lock Narellan, Lightforce Australia, Offroad Systems, Judd Panels, Townsend Signs, RDG Engineering, Central Safety Workwear
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