I have used a single phase motor (220 V 50 hz) in a hoist application. It is used to lift a given load up & down, but being a single phase motor, it sometimes never lifts the load & starts to rotate in single direction only i.e never lifts the load. When you press UP button, it rotates downwards, same for DOWN button. The thing is, the motor takes the easiest path and never lifts the load, while UP button is pressed, but instead rotates in opposite direction. Its a brake motor, whenever brake is released, the load/weight pulls down & motor tries to rotate in the same path. This is not happening always, since sometimes the motor is capable of lifting the load upwards. Please guide me to come out of this problem. thanx in advance.