blower speed on high setting is out. What could this be? Resistor?
Apr 2, 2011 at 5:03 PM
No High speed on Blower motor
1987 NISSAN PATHFINDER
MARKYMEISTER1954
- MEMBER
- 1 POST
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KASEKENNY
- ✓ASE Certified Mechanic
- 18,907 POSTS
More than likely this is a blower motor resistor. I am including a couple diagrams below on how to test and replace the resistor.
Here are a couple guides that will help with testing the resistor and then replacing the motor if the resistor tests okay:
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
Please see the info attached on how to test the resistor and then replace it if it fails. Again, if the resistor is okay then the motor is most likely the issue and needs to be replaced.
Here are a couple guides that will help with testing the resistor and then replacing the motor if the resistor tests okay:
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
Please see the info attached on how to test the resistor and then replace it if it fails. Again, if the resistor is okay then the motor is most likely the issue and needs to be replaced.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Jul 18, 2021 at 2:57 PM
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