On these 4 wire computer fans i have found that some times they require an input to tell it how fast to spin so simply supplying power to 2 of the wires will not work if you have a 3 wire fan however you can supply power to the red and black and leave the white disconnected. However the 4 wire fan is a little different as it has the fourth control wire to input a signal to the fan that commands it to speed up or speed down.
Blower Motor Fix Ricks Free Auto Repair Advice Ricks Free
4 wire fan motor diagram. Hvac condenser fan motor wiring diagram. It reveals the elements of the circuit as simplified shapes and the power and signal connections between the tools. Collection of 4 wire ceiling fan switch wiring diagram. Some condenser fan motors wire to a circuit board while others use proprietary plugs for their connectors. The ins and outs of a 4 wire computer fan. For a visual picture of typical wiring configurations reference the following guide.
This is a quick one on the difference between wiring universal condenser fan motors and why brownwhite is the same wire as white. Jesse grandbois submitted this tech tip to help make it simple. A wiring diagram is a streamlined standard pictorial depiction of an electrical circuit. How to wire a condensing fan motor for 3 vs. Finally this guide is intended to be used as a general overview of common condenser unit wiring schematics. 4 wires is a common question by new techs.
Simply a 3 wire fan reports its speed and a 4 wire fan lets regulate its speed by an external signal usually coming from the motherboard. Used 4 wire fan for these two projects.
Gallery of 4 Wire Fan Motor Diagram
.png)
