# 2004 Buick Rendezvous Heat/AC blower fan

**URL:** <https://community.cartalk.com/t/2004-buick-rendezvous-heat-ac-blower-fan/141213>\
**Category:** Maintenance/Repairs\
**Created:** [May 29, 2019, 4:32pm UTC](https://community.cartalk.com/t/2004-buick-rendezvous-heat-ac-blower-fan/141213 "2019-05-29T16:32:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Bill\_Smolinski](https://avatars.discourse-cdn.com/v4/letter/b/c37758/32.png) [@Bill\_Smolinski](https://community.cartalk.com/u/Bill_Smolinski)\
**Post date:** [May 29, 2019, 4:32pm UTC](https://community.cartalk.com/t/2004-buick-rendezvous-heat-ac-blower-fan/141213/1 "2019-05-29T16:32:21Z")

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The blower fan for my 2004 Buick Rendezvous heater and ac does not shut off. It also does not change the speed when advancing to the highest setting.

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [May 30, 2019, 1:57am UTC](https://community.cartalk.com/t/2004-buick-rendezvous-heat-ac-blower-fan/141213/2 "2019-05-30T01:57:58Z")

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Could be the switch is broken, or a relay that’s sticking, or a circuit board or connector problem. Find a shop w/access to the car’s wiring schematic. They’ll have to test it point by point following the circuit from the switch to the motor until they determine where the problem is.