[Ronald77380]

I am replacing a GE arconditionaing condenser fan motor with an AO Smith 5-5/8" diameter totally enclosed outdoor sleeve bearing fan motor Stock Number FSE1026S. The specs on the fans are simillar and the AO Smith motor is a universal replacement for my unit; however the old GE fan motor had four lead wires coming from the motor (one to the relay switch, two to the capacitor, and one ground). The AO Smith replacement motor has five lead wires and I am not sure if I have wired it correctly; does anyone have information on wiring these motors?

The AO Smith motor has one yellow, one black, one brown, one brown w/white stripe, one ground. The rep a Grainger where I purchased the motor suggested I connect the two brown wires (one w/white strip) to the capacitor. Leaving the yellow and black lead wires to connect to the relay and perhaps the capacitor too? Ground wire is obvious.

Any help would be appreciated. I could not find wiring diagrams for the AO Smith motor on their web-site; A.O.Smith Electrical Products Company or the data sheet for the motor at http://www.aosmithmotors.com/pdf/cat...150/PAGE60.pdf

Thanks.

[hvac1000]

((The AO Smith motor has one yellow, one black, one brown, one brown w/white stripe, one ground. The rep a Grainger where I purchased the motor suggested I connect the two brown wires (one w/white strip) to the capacitor. Leaving the yellow and black lead wires to connect to the relay and perhaps the capacitor too? Ground wire is obvious.))

Sounds good to me.

But not to this part.

And perhaps the capacitor too? Do not connect any other wires to capacitor except the two brown ones as previously stated.
BTW there is a wiring diagram on the side of the motor.

[toms923]

The new condenser fan motor for my air conditioner has a purple,brown, green and black wires, the york condenser had red,black, brown and green ,
Is the purple the same as red?

[isserfsfse]

Brown white goes on left side capacitor brown wire goes on the right side of the right capacitor yellow or white goes on relay on the left and black wire goes on the square board all the way in the bottom.

[chiefmax79]

If you have a multimeter set it for continuity. If not get or borrow one. Then test resistance between all wires to each other and write this down. 2 of them should should add up to the resistance of testing to of the others. Once you have tested them all to each other you should have found 3 wires having continuity to each other. The 2 with the larger amount of resistance are the ends of 2 diffent windings. Mark them as such. The other wire is common. This will get you started. Now you should be wiring these to single phase 208-240V. Connect one of the hot wires to the common wire of the motor. The other hot must be wire nutted to 2 separate wires one of which will go to input of the capacitor and the other which will connect to the end of the lowest resistance winding which you marked earier. Now Connect the output of the capacitor to the other motor winding end that you marked. It should be the one with the higher resistance from common. That is it!

[chiefmax79]

This is an addition to my previous answer. With ao smith psc motors they have a black which is common and should connect to L2 source power, A yellow wire which is internally connected to the brown and white wire and another solid brown wire. The yellow is should be connected to L1 source power. The brown and white wire goes to the capacitor input and the solid brown wire to the output of the capacitor. Then you are done.
If you want to know what you are doing instead of just connecting wires I suggest the multimeter method I entered above. In that example there is no internally connected wire with which to connect L1 to both the run winding and capacitor input. AO smith has done this for you in the motor for which the question was made.

[yung1638]

A.O.Smith Cb2034A wire

[helpforac]

We are trying to install AO Smith fan motor F48AD71A01 model. Our hold unit only had 3 wires-black/power, purple and brown went to capacitor with one going to fan and one going to common on the capacitor. So for the new fan motor were thinking the brown and the brown/white wire would go to the capacitor. How can we tell which wire goes to the fan and which goes to the common? Figure the black wire goes to the contactor, yellow?

[avrfan]

chiefmax79 is correct about the wiring for the A.O. Smith A.O. Smith FSE1036SV1 1/3 HP, 1075 RPM, 1075 volts, 1.8-2.8 Amps, 48 Frame, Sleeve Bearing Condenser Motor.

My old fan motor was a 3 wire motor (brown,black yellow). I did not know how it was wired previously upon removal because the wires were ripped from their terminals when they got caught in a running fan blade.

I bought a new A.O. Smith A.O. Smith FSE1036SV1 condenser fan motor to replace my old one, assuming it would be a 3 wire motor also. It turned out to have 4 wires (5 if you count the EGC green wire). It came with a diagram on the side but it shows a separate 2 terminal 7.5mfd capacitor wired across the Brown & Brown/White leads. I have a Dual Run capacitor which is like 2 capacitors wired in series with each other. I was unsure how to wire this up.

After reading this discussion I confirmed via Ohmmeter which leads were directly connected together (the Brown/White stripe & Yellow wires). So basically this is same as a 3 wire motor just there is an extra wire (Brown/White) tied to the yellow lead. So I snipped off this Brown/White wire and taped the end up.

I wired Black to the same contactor terminal as the compressor motor was wired to (marked L2 or Line 2). The yellow wire was connected to the 'C' terminal on the dual run capacitor which is also tied to L1/Line 1 terminal on the contactor. The brown wire is connected to the "Fan" terminal on the dual run capacitor. This is all I needed to do and it works right.

The only 2 problems I encountered were:
1) My fan is imbalanced now and vibrates vertically when running (maybe bent from the wire tangle incident that destroyed the old leads on the old motor)

2)I found an extra small plastic bodied component that looks like maybe another capacitor (with 3 terminals) wired what looks to be in Parallel to the dual run capacitor. I was unsure what to do, or why it was there as this was all original equipment that was never repaired or replaced since the house was new. It is marked Cera-Mite / CM 0 / CEROC / 3C5C11 / S2S. It appears to be wired in parallel across the 'C' (common) and 'Herm' (compressor) terminals on the new dual run capacitor (60+7.5mfd). This Cera-Mite device has 2 terminals jumpered together and connected to the 'Herm' terminal and the other to 'C'

Should I remove this thing? If it is a capacitor, it will alter the total capacitance seen by the compressor. This is the way it was wired with the old dual run capacitor. The difference being the old dual run was 60+5mfd with 5mfd side wired to the Fan motor. This new AO smith motor required a 7.5mfd capacitor so I ordered a 60+7.5mfd dual run for the install.

Any advice would be greatly appreciated. I can post a picture if needed.

Thanks
Dave