# Buick Century heater/defrost fan

**URL:** <https://community.cartalk.com/t/buick-century-heater-defrost-fan/112434>\
**Category:** Maintenance/Repairs\
**Created:** [February 18, 2018, 7:03pm UTC](https://community.cartalk.com/t/buick-century-heater-defrost-fan/112434 "2018-02-18T19:03:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![FrankTaylor](https://avatars.discourse-cdn.com/v4/letter/f/8baadc/32.png) [@FrankTaylor](https://community.cartalk.com/u/FrankTaylor)\
**Post date:** [February 18, 2018, 7:03pm UTC](https://community.cartalk.com/t/buick-century-heater-defrost-fan/112434/1 "2018-02-18T19:03:32Z")

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Heater/defrost fan only works in highest setting

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [February 18, 2018, 8:53pm UTC](https://community.cartalk.com/t/buick-century-heater-defrost-fan/112434/2 "2018-02-18T20:53:42Z")

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Likely burned out resister pack in the blower circuit.

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**Author:** ![FRANKM](https://avatars.discourse-cdn.com/v4/letter/f/2bfe46/32.png) [@FRANKM](https://community.cartalk.com/u/FRANKM)\
**Post date:** [February 26, 2018, 4:00pm UTC](https://community.cartalk.com/t/buick-century-heater-defrost-fan/112434/3 "2018-02-26T16:00:03Z")

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Could also be the Blower connection under dash near the motor. They seem to have a tendency to loosen or overheat. Easy fix.