# Clicking when Climate Contro fan is operating **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chevrolet\ **Created:** [May 2, 2016, 11:43pm UTC](https://community.cartalk.com/t/clicking-when-climate-contro-fan-is-operating/93192 "2016-05-02T23:43:06Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![mfa](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mfa/32/5312_2.png) [@mfa](https://community.cartalk.com/u/mfa)\ **Post date:** [May 2, 2016, 11:43pm UTC](https://community.cartalk.com/t/clicking-when-climate-contro-fan-is-operating/93192/1 "2016-05-02T23:43:06Z")
2002 Chevy Trailblazer Replaced blower motor resistor (manual temp control). Now I hear a clicking no matter what speed fan is set on. Whatcha think? ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [May 3, 2016, 12:43am UTC](https://community.cartalk.com/t/clicking-when-climate-contro-fan-is-operating/93192/2 "2016-05-03T00:43:35Z")
Does the clicking speed up with the fan speed? ---
**Author:** ![Barkydog](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/barkydog/32/2470_2.png) [@Barkydog](https://community.cartalk.com/u/Barkydog)\ **Post date:** [May 3, 2016, 2:30am UTC](https://community.cartalk.com/t/clicking-when-climate-contro-fan-is-operating/93192/3 "2016-05-03T02:30:49Z")
Broken actuator in blend door is my guess. Not an uncommon problem. Now which one? you might check [trailvoy.com](http://trailvoy.com) for info. ---
**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 3, 2016, 7:42am UTC](https://community.cartalk.com/t/clicking-when-climate-contro-fan-is-operating/93192/4 "2016-05-03T07:42:15Z")
If the clicking frequency gets proportionately higher with higher fan speeds – as queried above – suspect debris, leaves and small sticks, has been sucked into the blower cage area. If the clicking frequency is independent of fan speed, suspect Barky’s idea.