Why does my blower motor keep burning up?

Why does my blower motor keep burning up?

Improper rotation of the fan blade. With the fan blade spinning in the wrong direction the motor will not load and it will burn up over time.

What happens when the fan motor goes bad?

A bad fan motor prevents your air conditioner from functioning properly, which is a big problem during the summertime. If your fan motor is going bad, it can drastically shorten the lifespan of your condenser, meaning you might have to replace the whole thing. A fan motor is much more affordable than a condenser unit.

How long should a condenser fan motor last?

An AC fan motor can last more than 12 years if it’s kept clean and cooled as needed. On the other hand, without annual maintenance checkups, your fan motor may only survive between one and three years.

Why does my AC fan keep burning out?

However, you can prevent it from burning out sooner than intended with regular HVAC maintenance. One common reason an AC fan motor burns out is due to dirt building up around the fan motor. Dirt can creep into the holes of the motor, causing more friction for the inner workings which stresses the motor and causes overheating.

How can I tell if my AC fan motor is bad?

Inspect the AC Capacitor Inspect the AC capacitor. You’ll need a capacitor tester for this (available at any hardware store). Turn off the power source to your air conditioner. To test the fan motor on your air conditioner, you’ll have to do a continuity test. Click here for a video tutorial.

Why is my blower motor stuck on one speed?

Blower motor stuck on one speed A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed.

Why does my AC fan make a rattling noise?

If you hear a loud rattling noise, it could be a minor issue like loose stones or debris that’s caught in the condensing unit. A rattling noise can also be caused by loose or unbalanced fan blades striking the side of the fan housing unit.