wiring - replacing a cooker hood extractor fan motor

[charliebean]

Fan motor on the extractor fan went. It is a three speed hood. So I took out the motor and bought a genetic replacement. The original has four wires, three go to a block by the three speed switches (red, brown and black) and a blue wire goes directly to what I think is the switch that turns off the fan if the hood is closed.

The new motor has four wires, but instead of a blue it has a white one. So question is, why and is this just a case of put the white where the blue went on the original, or is there some other configuration going on here?

thanks

 

[charliebean]

anyone?

 

[Echo the husky]

Did the motor not come with any wiring diagram? Any of the colours could mean anything and there is no set standard.

 

[fender]

This might help.
I sketched it for another member some time back.
It's a fairly common generic set up.