1. Shut off the power to the WPU.
  2. Remove the wiring cover from the condenser fan.
  3. Disconnect the wiring to the condenser fan (3 wires)
  4. Loosen the 4 screws securing the condenser fan and remove it from the unit.
  5. Ensure that all necessary jumpers are connected on the replacement fan. Consult the wiring diagram for the correct wiring.
  6. Secure the replacement fan to the unit by fastening the 4 screws
  7. Reconnect the wiring from the unit per the wiring diagram.