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HVAC blower motor works only on the high setting

Tiny
DNUTTYONE
  • MEMBER
  • 1993 JEEP CHEROKEE
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 220,749 MILES
My blower motor only works on high currently only have a heater, we're working on the air conditioning this summer, but what could it be? The vehicle listed above is an XJ model.
Saturday, April 16th, 2022 AT 5:00 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
The most common cause of the fan only working at high speed is the result of a faulty blower motor resistor.

On this vehicle, it is located under the dash on the passenger side. You will need to remove the insulator under the dash on that side to access it.

Once that is removed, look upward and you will see the HVAC box. There will be a connector going to the resistor. Disconnect the connector, remove the two screws holding it in place, and remove and replace.

Let me know if this helps. I attached a pic below to help you locate it.

Take care,

Joe

See pic below.
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Saturday, April 16th, 2022 AT 10:24 PM
Tiny
DNUTTYONE
  • MEMBER
  • 3 POSTS
Thank you! Didn't even think of that one! I appreciate your time and help.
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Sunday, April 17th, 2022 AT 6:49 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
No problem whatsoever. I hope it helps.

Take care and let me know how things turn out for you.

Happy Easter,

Joe
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Sunday, April 17th, 2022 AT 7:10 PM

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