A/C blower will not shut off it is stuck on high

Tiny
AHMED BATRAN
  • MEMBER
  • 2009 NISSAN XTERRA
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 84,000 MILES
When I turn on my car, the A/C blower also turn on even A/C is turned off.
The blower will not shut off its stuck on high until I switch off the car.

- Is this part effecting to A/C? Because no cold air coming any more?

- I need your advice about how to buy online the fitted part.
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Wednesday, November 6th, 2019 AT 10:40 AM

1 Reply

Tiny
MOTOR MASTER
  • MECHANIC
  • 279 POSTS
Hello my name is Dave.

My first suspect is the blower motor resistor, this is what the blower switch is actually connected to. The best way to find out for sure if it's the switch or the resistor is to unplug the switch and see if the blower still runs. If it does replace the resistor, if it doesn't replace the switch. I have attached a diagram showing were the resistor is located. I hope this helps you track down your issue and please keep us up to date on your progress and thank you for using 2CarPros!
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Friday, November 8th, 2019 AT 3:59 AM

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