ECM FAN MOTOR

[VTP99]

I need to test a G.E. ECM 2 speed condenser fan motor. It's out of a American Standard M# XL1800. What voltage goes to the blue and yellow leads ?
TIA
VTP

[SBKold]

Hopefully you can distiginguish the high voltage leads. The other leads are 24v

[rundawg]

I need to test a G.E. ECM 2 speed condenser fan motor. It's out of a American Standard M# XL1800. What voltage goes to the blue and yellow leads ?

Blue and Yellow - 24v

Brown and Black - 220V

Green - ground

Send me and email with the model number and I will forward the service facts, and info on these ecm motors.

[VTP99]

Thanks SKBold,
Yes brown & black are my high voltage leads. 24v for yellow and blue makes sense too.

[VTP99]

Thanks rundawg,
My understanding is that these motors are 3 phase DC. The motor control converts the high voltage. Are the low voltage leads for the speeds with blue being ground. American Standard
Model # TTZ036A100A2
Serial # Z2926591F
Thank again for any info.
P.S.
motor is a GE 5SME39HLHY02
looks like a GE ECM 142

[rundawg]

Are the low voltage leads for the speeds with blue being ground.

Blue is common.

The low voltage leads send the signal to the motors module telling it what speed to operate at.