I just mounted the whole house fan motor. I have a basic on/off switch with all romex going to the fan with one black wire, and one white wire.
My question is: Since the new motor has one red, one black, two browns for the cap, one yellow, one white, and one blue wire. The ground wire is attached from the motor housing, the screwed to the metal frame.
Which wires go where?
There is currently just romex wiring !987 era, where the old fan was connected to. The new fan motor has seven wires.
I know black goes to black, white to white. But what happens to the red, yellow, and blue. The two browns are for the cap.
I'll get a picture later.
Thanks for the reply,
The new fan motor is from A.O Smith #754a, came with the cap POC7.5.
You are right, it is a multi-speed motor. The old motor worked like: On/off. Again, I'm looking at the decal I just found at the bottom of the box, regarding the connection diagram.
I'm lost to what goes where.
For example, the motor has a green groung wire coming out from its housing.
Then there is red, black two browns ( one brown has a white stripe on it), yellow, white, blue.
Please bare with me if I gave you too much info...
Thanks for your time,
Black, Red, Blue, and Yellow are for each of the 4 speeds. You connect your other incoming line to one of these -- depending on which speed you want it to operate at. Individually cap off the remaining wires.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
DIY Home Improvement Forum
A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Helping You to Do It Yourself!