Hvac Condenser Fan Motor Replacement 3 Wire To 4 Wire

The old motor had a white wire or purple that went to the old capacitor marked c for common the black wire to the contactor for hot and the brown wire to the f on the old cap.

Hvac condenser fan motor replacement 3 wire to 4 wire.

What do you do with the two brown wires black wire and white wire. How to wire a condensing fan motor for 3 vs. This is a quick one on the difference between wiring universal condenser fan motors and why brown white is the same wire as white. How to install 4 wire hvac ac fan motor to 3 wire unit.

I go over how to eliminate. This video shows how to wire a furnace blower motor to an extension cord how to reverse the rotation what informa. 4 wires is a common question by new techs. How to wire a run capacitor to a motor blowers condensers sometimes when a blower or condenser fan motor goes bad a technician or even a diyer has issues wiring the new motor and capacitor most motors come with clear instructions or a wiring diagram on the side.

Your old motor had 3 wires. Assuming the compressor uses 3 wires and one leg from the contactor is jumpered to the common terminal of the capacitor it must be therefore impossible to use the 4 wire method for the fan right. Since most oem motors only have 3 wires and most replacement condenser fan motors have 4 wires this creates a little confusion. However some people still struggle with the wiring part of the motor to the capacitor.

The old capacitor has 3 connections herm hermetically sealed compressor c common and f fan. The common lead white and the brown with the white tracer contractor leads are wired into the same circuit so the brown with the white tracer can be cut off and insulated with a wire nut and electrical tape you. Jesse grandbois submitted this tech tip to help make it simple.