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2003 Mazda Protege blower fan resistor

Tiny
POODAH
  • MEMBER
  • 2003 MAZDA PROTEGE
  • 4 CYL
  • FWD
  • MANUAL
  • 48,000 MILES
Hi--

I replaced the blower fan resistor module in my 2003 Protege because the fan would only work on high speed. All the speeds worked for about two days then quit again. What should I try next?

Thanks!
Friday, January 23rd, 2009 AT 1:12 PM

7 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello
Thanks for the donation.

Inspect your blower motor relay, located behind right end of dash. If it is going bad it will only allow the fan to work on high setting, not being able to resist currents for the other settings. You can swap it out with another similar relay to see if it helps. Post results and I will follow up.

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Friday, January 23rd, 2009 AT 1:19 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the AC fuse 15amp and Heater fuse 40amp if okay test the blower relay and fan switch


https://www.2carpros.com/forum/automotive_pictures/12900_fan_switch_and_relay_1.jpg

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Friday, January 23rd, 2009 AT 1:27 PM
Tiny
POODAH
  • MEMBER
  • 2 POSTS
Bluelighten6:

When you say check the blower motor relay isn't that the same thing--just a different name--as the blower motor resistor module? That's what I replaced when the fan would only work on high speed. Then after two days iof working properly the new one quit and again the fan only blows on high speed.
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Friday, January 23rd, 2009 AT 1:36 PM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
No. The relay is sort of like a fuse.
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Friday, January 23rd, 2009 AT 4:03 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
I looks similar like this


https://www.2carpros.com/forum/automotive_pictures/12900_blower_relay_4.jpg

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Friday, January 23rd, 2009 AT 5:16 PM
Tiny
POODAH77
  • MEMBER
  • 1 POST
The problem was a bad blower motor was screwing up the resistor. The motor looked a bit burned with a few pieces of fried and dried leaves in the wheel. I replaced the motor and resister and it now works great.
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Thursday, February 5th, 2009 AT 1:22 PM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Great, glad you got it fixed. Thanks for that information, it will help us help others with similar issues.

Thanks for using 2CarPros. Com!
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Thursday, February 5th, 2009 AT 1:23 PM

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