I am trying to fix a tower fan from a friend. He found out that the motor was working, but something on the circuit board wasn't. He then took apart the board from the motor without remembering which wire of the motor connected to pads on the circuit board. Now I am trying to find out how this single-phase AC motor works by measuring the resistances across the wires. I did this and found out that some of the wires have some resistance between them (from which I conclude these are the common and speed select wires). There are also two wires (grey and brown) which have infinite resistance to the rest of the wires, but between them have zero resistance. In total I have 7 wires and I will give the resistances down below. Can someone help me with finding out what every wire is supposed to connect to?
I also have a capacitor which was connected before to the circuit board (very large cap). I also already tried to look the motor up on google (Shanhu shm-40), but I can not find anything that looks like a wiring diagram or something like that.
Grey-Brown --> 0 ohms
The other 5 wires seem to be connected in the following way (with resistance from white to black being 1279 ohms): White-->Blue-->Yellow-->Red-->Black
The following resistances are in between these connections (they add up pretty close to the total of 1279 ohms). White-Blue --> 332 ohms Blue-Yellow --> 174 ohms Yellow-Red --> 204 ohms Red-Black --> 594 ohms
The fact that brown/grey are not connected at all to the other wires seems very strange to me. If anyone could help me solve this problem I would be very thankful :D.