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2003 Trailblazer -AC/Heater Question

Tiny
ROBNCRYS0518
  • MEMBER
  • 2003 CHEVROLET TRAILBLAZER
I have a 2003 Chevy Trailblazer with 96,000 miles with a V6 engine and today when I went to put on the heater, the heater would only go on when I put it all the way up to 5. It would not work on 1-4 settings. I tried this for all the fan types, AC, fan, defroster. Etc. What could be causing this and how do I get this fixed? Please help!
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Thursday, November 1st, 2007 AT 12:51 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Try the blower motor resistor, on the right inside under the dash, by the blower motor. And look at your fuse panel for a blown fuse, the number 5 speed is on a diferent cucuit.
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Thursday, November 1st, 2007 AT 1:01 PM

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