Greetings, I hope I'm posting this in the right section!

I am replacing a broken bathroom ceiling fan motor. The old motor had a black and white wire that went to a regular household plug connector that plugged into an outlet inside the fan housing, in addition to a green ground wire.

The new motor has 4 wires: Black White and Red, and of course the green grounding wire. I am going to solder the plug connector from the old motor onto the new motor, since the connector on the new motor was not a plug. Should I just connect black to black and white to white and leave the red connector on the motor disconnected?

The motor has no diagram on it, but it says: A.O.Smith Universal Electric Motor. 115V 60HZ .60/1.4A 1050/1550RPM, CLASS B INS. AO ASSEMBLED IN MEXICO 0.27HP 1PH 56343-0 (Z6S/Z6H).

Any help appreciated, thanks.
Martin

Are you sure the new motor is the correct replacement?

Their website is A.O.Smith Electrical Products Company (http://www.aosmithmotors.com), but their search engine is down.

White is going to be Neutral. The 1050/1550 are speeds.

HOT to Black OR HOT to RED will select either select low or high speed. Wirenut the end of the unused wire or cap it with a crimp connector that looks like a wirenut.

Use solder and Heat shrink once you figure out the speed you want to use with a temporary hookup.

Are you familiar with this specific motor, to be sure that the black and red wires are two separate speeds? That could be the case, but if not confirmed, it could be something else as well.

Ok that helps, I'm not familiar with the motor, it's the one that the guy at the "motor store" would work. He saw the broken motor, which said on it: PENN VENTILATOR, MODEL B0508B2231, Z6-P/N 60285, 115V, 60HZ, 0.6 AMP, 1/100 HP, 1100RPM. So I'll try hooking up HOT to Black or red and solder it to whichever one makes the motor go slower.
Thanks!

Cfr:

A "Universal motor" is a motor that can operate on both AC and DC power and thus no capacitor is used. The 0.6/1.4 amp rating is the currents at the speeds of 1050 and 1550 RPM. I'l assume white as a common lead (There is no reason not to). You have to be able to change the speed since 50/60 cycle ratings are not present. You cannot change the direction because 4 wires are not present. This is then the SWAG method of determining wiring. A Scientific Wild-A$$ed Guess.

KISS

The guy at the motor store did you no favor. For nearly every fan I have install OEM replacement motors are readily available. Is there some reason you did not just get on the net and order an OEM? They arrive ready to plug directly into the fan housing.

I very highly doubt it is a universal i.e. AC/DC/brush motor. Universal is a line of motors, they are in fact PCS or shaded pole.

Still a good theory though.

I connected white to white and black to black and tied off red on the fan. It is installed and so far so good, thanks for your help guys!