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Old 09-08-2012, 01:51 PM   #1
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Discrepancy in wire colors


The old fan on my condenser unit quit so I ordered a new one but the wire colors are different.

The old fan had black, red, brown and blue

The new fan has black, white, brown and brown/white

If I connect black where black was
white where red was
brown where brown was
and brown/white where blue was
is this correct?
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Old 09-08-2012, 02:01 PM   #2
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Discrepancy in wire colors


if the brown and blue were on the fan capacitor and the black and the red were on the contactor than yes.

black is line 1

white is line 2

brown to one side of fan cap

brown and white to other side of fan cap

question is: do you have an individual fan cap or a dual run cap? The dual run would have Herm, Fan and C marked on it.

If you have a dual run you'll not be using the brown and white.

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Old 09-08-2012, 02:14 PM   #3
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Discrepancy in wire colors


It's a dual capacitor,
from the fan.....The brown wire was wired directly to "F" on the capacitor
red wire was wired directly to L1
blue was wired to the "LO" of a fan control circuit board
and black was wired to the"HI" of the same board

at the dual capacitor..... a red wire is connected to L1
the brown wire is connected to "fan"
and a baby blue wired is connected to the compressor

Last edited by lou859; 09-08-2012 at 02:53 PM.
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Old 09-08-2012, 04:09 PM   #4
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Discrepancy in wire colors


Post the make, model and serial number of the condenser. Apparently it's a two stage fan.

The new fan motor is a single stage. Someone else might know off the bat as I'm not too familiar with those but black to line one, white to line two (at the contactor, not the board), brown to fan on the cap and cap off the brown and white. See if that does it.
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Old 09-08-2012, 04:22 PM   #5
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Discrepancy in wire colors


Or if you can take some pictures of the original wiring and this board you're talking about, it'll help.
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Old 09-08-2012, 04:39 PM   #6
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Discrepancy in wire colors


Sounds like your old motor was a 2 speed motor, and you now have a single speed. Which would be the wrong motor for your condenser.
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Old 09-08-2012, 04:41 PM   #7
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Discrepancy in wire colors


I don't have a camera right now. Give me a few hours on that.
There is a stiicker on the side with two bar codes and two numbers.

TCH024AKA2
L020488667

It is a TempStar "smart comfort 200" and it is a 2 ton heat pump.
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Old 09-08-2012, 06:44 PM   #8
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Discrepancy in wire colors


The first photo is the old fan with red, black, brown, and blue wires.

Second photo is the board where the blue and black wires connect.

Third photo shows the new cap connected exactly like the old one was.

Fourth photo shows how I have the wires from the fan temporarily connected

Last photo is the new fan installed
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Old 09-08-2012, 07:06 PM   #9
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Discrepancy in wire colors


Is it working?
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Old 09-08-2012, 07:19 PM   #10
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Discrepancy in wire colors


No, I cut it on for just a second but the fan only hums.
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Old 09-08-2012, 08:08 PM   #11
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Discrepancy in wire colors


We can get this to work as is but you sure you don't want to get the exact replacement motor with the exact same wires instead?
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Old 09-08-2012, 09:08 PM   #12
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Discrepancy in wire colors


New brown goes whee old brown was. New white goes where old blue was. Brown with white stripe gets capped off. A jumper is put from the circuit board high and low, and then the black wire is connected to that.

May ebd up with freezing indoor coil at milder outdoor temps since the fan will be spinning faster then it should be.
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Old 09-09-2012, 07:34 AM   #13
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Discrepancy in wire colors


What about the new black wire?
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Old 09-09-2012, 07:34 AM   #14
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Discrepancy in wire colors


Quote:
Originally Posted by Doc Holliday View Post
What about the new black wire?
never mind.
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Old 09-09-2012, 07:37 AM   #15
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Discrepancy in wire colors


I'm confused. The old blue wire was on lo on the board. You said to put the white to where the old blue was which would be LO and then to jump lo and high and then connect the black to that. Lo and high on the same jump?

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