A/C not working on settings two and three

2002 MAZDA PROTEGE
130,600 MILES
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AHH
  • MEMBER
  • 1 POST
My son's car's A/C is working on speeds 1 and 4, but not on 2 and 3 most of the time. The fan works on all speeds.

Is the relay behind the glove box the issue or something else?
Jun 7, 2022 at 5:43 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

Chances are the blower motor resistor is failing. It is located behind the glove box. If you look at the pic below, it provides the directions for the removal and replacement of the resister.

Take a look at the directions and let me know if you have questions.

Take care,

Joe

See pic below.
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Jun 7, 2022 at 9:02 PM
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