Fan that cools the condenser does not come on untill i give it a small push

You will need to replace the motor. It is going bad new fan is about 125 bucks takes about 2 hours to replace unless you have the right tools then about 45 minutes. Be sure to pull the safety disconnect on the side of the house before attempting to replace. Be sure to make note of wiring. Can cut off the wires and leave in place then just wire nut new wiring to old. You will have 3 wires and 2 wires for the direction of rotation. Need anymore help just get to me ken