I have a rheem unit I replaced the condenser motor and it is over heating then shuts done the old motor had 3wires coming from the motor brown black and orange the new motor had 4 wires 2 browns go to capasitor purple became come tied that to brown and black to black and I just tied of the orange it get kick on just fine blows cold air then motor get hot and shuts down don't want to blow motor

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Originally Posted by daviddodaro

I have a rheem unit I replaced the condenser motor and it is over heating then shuts done the old motor had 3wires coming from the motor brown black and orange the new motor had 4 wires 2 browns go to capasitor purple became come tied that to brown and black to black and I just tied of the orange it get kick on just fine blows cold air then motor get hot and shuts down don't want to blow motor

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You have wired your new motor incorrectly. The motor lead you will not use is the brown with white trace marks--cap this wire either with wire nut or electrical tape. Connect solid brown wire to capacitor (FAN) terminal--- then connect purple wire where old motors orange wire was connected--- then connect black to black.

He is right on about the rewire

In the future and for all who read this going forward:

stop the 3 wire madness when re-doing condenser fan motors.

Just go to 4 wires - it is so easy and motors like it so much more

Br - br/wht to new cap

Purp and blk to load side of contactor or one to contactor and one to relay on defrost board if a heat pump

Just leave the dual run capacitor in place and it now just powers the compressor.

more better and thats how its done in the field

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Originally Posted by thermalmedics

he is right on about the rewire

in the future and for all who read this going forward:

stop the 3 wire madness when re-doing condenser fan motors.

just go to 4 wires - it is so easy and motors like it so much more

br - br/wht to new cap

purp and blk to load side of contactor or one to contactor and one to relay on defrost board if a heat pump

just leave the dual run capacitor in place and it now just powers the compressor.

more better and thats how its done in the field

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When working in the field we should be "more better". One should strive to keep customers equipment original as possible for a couple reasons: Wires match OEM wiring diagrams--and where do you put this now extra capicitor in a tight control box --Remember voltages (Back EMF) at this extra capacitor terminals can be 370 to 440 volts while motor is running. "4 wire---Motors like it so much more"-- I don't understand?