Blower motor stuck on high, had to pull blower motor fuse to make it quit

Discussion in 'Interior' started by strad, Jul 31, 2018.

  1. strad

    strad Full Access Member

    Posts:
    143
    Likes Received:
    2
    Joined:
    Jul 28, 2011
    Location:
    Las Vegas
    Name:
    Marc
    The rest of the control panel works ok, controls where the air goes, what turns on, etc. Fan control does not respond at all. Fan is stuck on high. Fan continues to run on high even with ignition off. Had to pull 40amp fuse for blower motor in under hood fuse panel to get it to quit. Ideas of where to start?

    Edit: Although my sig shows a 2005 suburban (which is correct) this is a 2005 Escalade that I drive for work, and is company owned. It is built 9/2004 if that information is important. The Suburban is built the same month.
     
    Last edited: Jul 31, 2018
  2. Doubeleive

    Doubeleive Elite Member Supporting Member

    Posts:
    3,379
    Likes Received:
    1,973
    Joined:
    Nov 7, 2017
    Location:
    Stockton, Ca.
    Name:
    Wes
    most likely culprit is the blower motor resistor, it's the most common problem, you can order one online or most autoparts store stock them, easy fix, you just need a 7 or 8mm socket to remove the kick panel on the passenger side under the glove box, youtube has plenty of "how to" videos.
     
  3. Bombsquad85

    Bombsquad85 Full Access Member

    Posts:
    900
    Likes Received:
    812
    Joined:
    Aug 18, 2016
    Location:
    Northern VA
    Name:
    David
    7mm to drop panel and 5.5mm to undo the resistor. I would recommend a new resistor with harness. I just got this one and it works as designed.

    https://www.amazon.com/gp/aw/d/B078J3B4S8?psc=1&ref=yo_pop_mb_pd_title

    I like that its color coded to factory and affordable.
     
    Doubeleive likes this.
  4. strad

    strad Full Access Member

    Posts:
    143
    Likes Received:
    2
    Joined:
    Jul 28, 2011
    Location:
    Las Vegas
    Name:
    Marc
    Thanks. I "borrowed" the one from my suburban to confirm diagnosis (same part number). Sure enough. The part in both cars is made by Carter Group and has 9643 on it. It has a 3 prong input. I discovered that I could only get this (not a carter, but same connections and crossreferences for part number) on Amazon. Rockauto, Oreilly and Autozone do not have a direct fitment. I think that's pretty weird but anyways, part will be here tomorrow.
     
    Last edited: Aug 1, 2018
    Bombsquad85 likes this.

Share This Page