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Climate control switch does not change the air

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  • Cars & Trucks Master
  • 21,873 Answers

Could be a blend door under the dash.

Posted on Mar 28, 2015

  • 2 more comments 
  • Terry Parker Mar 28, 2015

    The door is opening and shutting

  •  Stephen
    Stephen Mar 28, 2015

    You should have at least two doors. One for temp control and another for direction of the air thru the outlets. If the temp does not change, its usually the blend door or the main controller.

  • Terry Parker Mar 28, 2015

    One is dead center where is the other

  •  Stephen
    Stephen Mar 28, 2015

    The blend door in the middle controls air outlet, there should be a vac controlled door near the air bag module that controls temp. You may need a repair manual to handle the job. It requires removal of the dash panel on most models.

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Posted on Jan 02, 2017

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apollo 13
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SOURCE: air filter and climate control filter

your climate filter located at glove compartment,you need to take off it,or sometimes it is in the grill near windshield,the filter you need to take off the cover in the engine then follow the airduck

Posted on Jun 25, 2008

fastboyz
  • 674 Answers

SOURCE: Ford 2006 F350 Air Climate Control

press the auto button and the floor defrost button together for a couple of second and it will change between the two
good luck
if you found this helpful please rate Fixya
thanks
paul

Posted on Sep 28, 2008

keemo68
  • 1263 Answers

SOURCE: climate control system only blow air out defrost vent

there is a good chance that you blend air door is stuck closed over your heater core and therefore not allowing the heat to flow, also your door that opens and close your direction of flow from the floor ,das,vent and defrost.your going to have to remove the lower cowling of the dash on the passenger side analso some of the center dash to actually check to see if the cable,servo motors. are acuating the doors.the issue could be just a stuck door or a misaligned cable or that it came off. that falls under the mechanical side of probabilities. electrical would most likely be a faulty selector switch or a servo motor

Posted on May 15, 2009

  • 150 Answers

SOURCE: climate controls

Car manufacturers use the defrost mode as a default for safety reasons. Being they want you to be able to defrost the windshield no matter what. So when something goes wrong the system automatically goes to the defrost mode. You most likely don't have the vacuum hose connected under the dash at the climate control assy. Or if this vehicle doesn't use the vacuum hose style you may have not plugged in one of the connectors under the dash or behind the climate control assy. Good luck.

Posted on May 21, 2009

SOURCE: my 1999 Chevy Silverado climate

You will need to replace the blend door actuator. What happened is the little plastic gear in the actuator has broke and now the vent will not open the door that controls the vent. Click on the link below to view the part you will need:

http://cgi.ebay.com/ebaymotors/AIR-TEMPRATURE-ACTUATOR-1999-2007-CHEVY-SILVERADO-_W0QQcmdZViewItemQQhashZitem3f0633e62aQQitemZ270687004202QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories#ht_1154wt_732

Posted on Jan 06, 2011

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12_26_2011_2_15_09_am.gif
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12_26_2011_2_22_49_am.gif
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12_26_2011_2_28_50_am.jpg

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