I have a new AC motor and a capacitor for it, but I have no clue right now on the wiring from the wall to the cap and the motor. I know it's a three speed motor, I basically want it to run on the highest speed.

AC Motor diagram:


Capacitor:


Wiring off the Motor:


Could any of the electrical gurus here help me out?

This post has been edited by garethlye: May 24 2018, 12:01 PM

Looks like aircond blower motor. As shown in the diagram, capacitor is across red and blue

For aircond usually have prewired for capacitor. Just replace the capacitor will do. Probably around rm10

Hi, yeah it's an Aircon blower motor but I am not using it in the Aircon unit so I would need a capacitor, this is for a DIY project

Any idea how to wire it if I had to wire the capacitor myself?

Can you snap a pic of the motor terminals...

the capacitor... just wire it in parallel to motor red and blue wire, according to the drawing.

the capacitor terminal, is usually across (left and right, label facing you) with no polarity.

I think you understand where to connect the capacitor. The problem is the capacitor has 4 terminals, right?

Two pins are closed to each other and the close pairs are separated far from each other. The close pair has same polarity.

Opps ... I need to ask one thing before going further. Why did you buy a 4 terminals capacitor instead of two? Is it the same as the original? I think it is not, right?

Not sure if your capacitor is polarized or not. You can verify if it has + or - sign. So, if there is non, it is safe to assume that they are non-polarized. Polarized capacitor can replace both polarized and non-polarized capacitor. Non-polarized capacitor can only be replaced by non-polarized capacitor unless you know if the voltage polarity will not change.

Here is how your capacitor connections are:



In your case you will just use 2 terminal. Connect just one terminal on each pair and use the side. However, I believe if you connect to the opposite side, it will work just fine.



This post has been edited by Zot: May 24 2018, 11:39 AM

That type of capacitor usually does not have any polarity on it...

Updated with a pic of the wiring from the motor.


Is there a diagram or something I could follow? I'm not entirely sure what you mean


There is no + -, Im pretty sure this is a non-polarised capacitor.
This was the capacitor that the hardware shop told me is compatible with this motor.

So, the capacitor diagram is still correct. Just ignore +ve and -ve sign. Just oluig in the Blue and Red wires to the terminals

Sorry to be demanding
Could you tell me which wire goes where for each wire?

Since no polarity, just plug in Blue wire to one capacitor terminal and the Red wire to opposite terminal.

If you look at the capacitor picture, just use terminal facing the screen on the left and on the right. If you want to use the terminal at the back, just use both terminal at the back on the left and the right. The blue and Red wire connect to either side are fine since the capacitor is non-polarized.

Red/blue to the capacitor & the rest to the ac motor...

Assuming I only need to wire red, blue, and black(for the speed).
If red goes to one side of the capacitor, and blue goes to the other,
Where does the black, live and neural wire go to?

Looking at the diagram, Black and Blue is AC. However, in this case the Black, Brown and Orange go to switch. The connected to Black, High speed. When AC is connected to Brown, Medium speed and the last one Low speed.

How was the wire originally? How do you dismantle in the first place? Just close your eyes and pull all wires on one go?

The Blue wire only one? Maybe it is split somewhere. The picture shows with connector that sure go to capacitor

Brown Black Orange was in a connector of its own. Since it's supposed to goto an aircond, I removed it because I need to use it without an aircond.
I just want it to run on highest speed, so has to be just black alone yeh?

There is only one blue wire, that's why i have a capacitor with me

You see that on Blue wire got crooked symbol there? That is for thermal fuse as far as I know. So the AC supply go between Blue and Black (H - for HIgh Speed I think).

The air-con must have other wire connected to the Blue. You can connect the the AC to the capacitor next to the terminal with Blue wire.

If I do not hear anything from you, it means an explosion took place

Live goes to Blue, Neutral to Red & the capacitor goes in between Blue & Red. As for the speed (Black) connect it to the motor..

Good grief, So scary man your advice


Black(for speed) is FROM the motor, do I hook it up to the live side of the capacitor or the neural side of the motor?
Also I thought red was the live? Sure live wire goes to blue?

Black goes to the speed selector section of your circuit, DON'T hook it up to Blue/Red. It can go both side since its AC supply, there no polarity, same goes to your HP charger/blender.