The motor you are talking about is a three phase motor? if so three wires are for the LIVE current another one is for GROUND and the fifth is for NEUTRAL or most people call it RETURN, in this case the live wires A-B-C would run the machine in one direction and if any two wires are switched the motor moves in the other direction, but the thing is the color codings, well here in our country, its different, Our GROUND is usually yellow or GREEN, NEUTRAL is BLACK, and we use and three different color for the 3 live wires.<br><br>Another option could be that it is a 2PH motor, but I can't comment on this as I too had hard times with this one, ofocurse it did'nt blow up, just kidding..<br><br>Its best to have some electrician have a look inside the motor or contact the company directly for info.GODD LUCK