Do I need to replace my heater/ac control assembly?

2000 NISSAN QUEST
160,000 MILES
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ALFCD
  • MEMBER
  • 2 POSTS
My AC/HEATER Blower fan speeds 1 and 2 stopped working a few weeks ago. Then about a week ago, speed 3 stopped working. Now only speed 4 is working. I'm fairly certain that the control assembly needs to be replaced with those symptoms. Do you concur?
Oct 3, 2011 at 8:03 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Check and replace the blower motor resister.
Oct 3, 2011 at 8:19 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Yes, symptoms indicates a failed blower motor resistor and not the control assy.
Oct 4, 2011 at 5:21 AM
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