# Blower works. Blows cold but not heat

**URL:** <https://community.cartalk.com/t/blower-works-blows-cold-but-not-heat/44374>\
**Category:** Maintenance/Repairs\
**Tags:** windstar, ford\
**Created:** [February 13, 2010, 1:50pm UTC](https://community.cartalk.com/t/blower-works-blows-cold-but-not-heat/44374 "2010-02-13T13:50:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![hdxlx1000](https://avatars.discourse-cdn.com/v4/letter/h/4491bb/32.png) [@hdxlx1000](https://community.cartalk.com/u/hdxlx1000)\
**Post date:** [February 13, 2010, 1:50pm UTC](https://community.cartalk.com/t/blower-works-blows-cold-but-not-heat/44374/1 "2010-02-13T13:50:38Z")

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I recently heard 3 or 4 “clicks” from under my dash around where the heater control is. Since then the blower will blow vent and A/C air but when the control is set to heat, it will not blow heat. I don’t suspect the thermostat because this problem coincided with the clicking. Is there a separate relay for the heater or could the heater control switch be the problem?? (FYI - there is plenty of antifreeze, so that’s not it either)

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**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [February 13, 2010, 4:09pm UTC](https://community.cartalk.com/t/blower-works-blows-cold-but-not-heat/44374/2 "2010-02-13T16:09:29Z")

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It sounds like what you may have heard is the vent door. It appears the door is stuck in the wrong position.

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**Author:** ![ken\_green](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/ken_green/32/816_2.png) [@ken\_green](https://community.cartalk.com/u/ken_green)\
**Post date:** [February 13, 2010, 4:35pm UTC](https://community.cartalk.com/t/blower-works-blows-cold-but-not-heat/44374/3 "2010-02-13T16:35:40Z")

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click,click,click…= blend door motor. ( Inside motor is little plastic reduction gears much like in a clock. They’re only plastic so if the door binds, the gears strip. )  
Ford # XF2Z-19E616-FB , Motorcraft # YH-1764 , $59.95  
You don’t say what year but 1999-2003 is the one I listed.

Question when replacing a blend door motor, What caused the door to bind to ruin the motor ?  
Clean inside to be sure door moves freely.