Universal condenser fan motor wiring

Please enter the name by which you would like to log-in and be known on this site. Please enter a password for your user account. Note that passwords are case-sensitive. Remember Me?

This is by far the most common post-transaction question that we receive from customers that have recently purchased replacement condenser fan motors. Simply put, no — you did not buy the wrong condenser fan motor. This guide will explain how to wire your new condenser fan motor using a four wire setup or a three wire setup when using a single run capacitor or a dual run capacitor. If you recall from our residential cooling season guide , outdoor condenser units use a switch called a contactor. This switch is controlled by the thermostat and closes to complete an electrical circuit when electricity needs to be supplied to your condenser fan motor and compressor.

Universal condenser fan motor wiring

New techs have a common question of how to wire a condensing fan motor for 3 vs. Jesse Grandbois submitted this tech tip to help make it simple. Thanks, Jesse! This one seems to confuse even experienced technicians, but it's actually very simple once you see it. As always, refer to the wiring diagram on the particular motor you are using. As you can see, the only difference is that there is no jumper from the contactor to the capacitor. They're joined inside the motor. The brown wire with the white stripe is only there for convenience. You will find that it either reads zero or very low ohms, proving that they are directly connected within the motor. Usually choose the 4 wire method and have always trained guys that way. Is there a difference in operation between methods? I teach the four wire method because it is impossible to get confused. Get Tech Tips Subscribe to free tech tips.

I just replaced the fan motor and capacitor, the original motor had 3 wires the new 4.

.

New techs have a common question of how to wire a condensing fan motor for 3 vs. Jesse Grandbois submitted this tech tip to help make it simple. Thanks, Jesse! This one seems to confuse even experienced technicians, but it's actually very simple once you see it. As always, refer to the wiring diagram on the particular motor you are using. As you can see, the only difference is that there is no jumper from the contactor to the capacitor. They're joined inside the motor. The brown wire with the white stripe is only there for convenience.

Universal condenser fan motor wiring

Service calls about condensing fan motor failure are quite common. Even though fan motor replacement is a standard procedure for residential split systems, it requires careful attention to safety and detail. This article will give you a step-by-step guide to replacing condensing fan motors. Along the way, we will also explain a few best practices for safety and an enhanced understanding of the process. One of the reasons why motor failure is so common is because there are many ways that it can fail. Some causes may include failing shorted, windings failing open, and bearing failure. The image above shows highlighted bearings, which often fail due to improper lubrication or environmental contamination.

Cgat hispano

What if the replaced fan condensor now has wires exposed at top. Register Now. A little tip when changing liquid cores: If you start pumping them down, begin bypassing discharge gas into the shell to warm it up, push out the remaining liquid, and bring the shell above the dew point so that it doesn't sweat […]. Either indicate the same thing. The way this motor is wired right now is line 1 line 2 and the brown and straight brown from the motor to its own capacitor. Your email address will not be published. This will likely be back to your contactor. Leave a Reply Cancel reply Your email address will not be published. New techs have a common question of how to wire a condensing fan motor for 3 vs. Jesse Grandbois submitted this tech tip to help make it simple. Model number? When blade was on the motor turned CCW and other motor was working.

This is by far the most common post-transaction question that we receive from customers that have recently purchased replacement condenser fan motors. Simply put, no — you did not buy the wrong condenser fan motor.

What does Note 4 say? Share this Tech Tip: Facebook Tweet. Mount the motor's new capacitor properly and tidy it all up. Set the motor rotation to match the fan blade. Then about 5 minute or so motor came on the stopped then came on again. Originally Posted by VTP Please enter a password for your user account. They're joined inside the motor. On the new motor, you connected the brown wire to the original brown wire that goes to the capacitor in the electrical section. How many fans are on this? Which of the following applications apply to you? Originally Posted by bwd Is there a difference in operation between methods? This is by far the most common post-transaction question that we receive from customers that have recently purchased replacement condenser fan motors.