Help with Samsung Microwave Cooling Fan Wiring Pins

[jkucukov]

I have a Samsung Microwave I'm looking to harvest some parts from, specifically the 120V AC motor that keeps the Magnetron cool.
From the image below, we see 3 pins on the AC motor, with AC Voltage tester all 3 leads measure 120 V with the microwave plugged in and fan not running. With the fan running only pins 2 & 3 measure 120 V.

What I'm looking to do is wire this motor up on a Air Compressor to keep the motor cool, but I need to know what is the safe way to wire it, (IE wire in pins 2 & 3 with 120 V only to get it to run?)

Also, as its wired, when the fan operates the flow of air is bottom to top, I was wondering if the direction of the air flow can be reversed by rewiring the motor.

Thanks in advance!

[R_J]

The fan motor is also used as a stepdown transformer to provide 21vac for the stirrer and drive motors, the yellow and blue wires likely connect to those motors so 120vac would connect across pins 1 and 3, and between 3 and 2 you will have 21vac. the direction of rotation cannot be changed by reversing the wires.

[jkucukov]

The fan motor is also used as a stepdown transformer to provide 21vac for the stirrer and drive motors, the yellow and blue wires likely connect to those motors so 120vac would connect across pins 1 and 3, and between 3 and 2 you will have 21vac. the direction of rotation cannot be changed by reversing the wires.

Thanks, turns out I cant be using that microwave 120V motor at all on my 230V compressor since the two 120 V poles don't have a neutral (Just 2 x 120V poles and a Ground wire) .

I need to find a 230V motor, perhaps Something like this:


Doing some online research the EU 230V wiring is as follows:

Separate the Black wires and the 120V input be at the Black capacitor wire only while the Black and Brown wires stay connected and the blue wire gets the other 120 V lead, would it be Ok to wire the motor like I have shown: