# 1988 Dodge Omni heater controls won't work fan works fine

**URL:** <https://community.cartalk.com/t/1988-dodge-omni-heater-controls-wont-work-fan-works-fine/91431>\
**Category:** Maintenance/Repairs\
**Created:** [October 14, 2015, 1:44am UTC](https://community.cartalk.com/t/1988-dodge-omni-heater-controls-wont-work-fan-works-fine/91431 "2015-10-14T01:44:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![willbgoode](https://avatars.discourse-cdn.com/v4/letter/w/48db29/32.png) [@willbgoode](https://community.cartalk.com/u/willbgoode)\
**Post date:** [October 14, 2015, 1:44am UTC](https://community.cartalk.com/t/1988-dodge-omni-heater-controls-wont-work-fan-works-fine/91431/1 "2015-10-14T01:44:49Z")

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Won’t switch between functions(heat,vent,etc.) any help would be appreciated

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [October 14, 2015, 1:56am UTC](https://community.cartalk.com/t/1988-dodge-omni-heater-controls-wont-work-fan-works-fine/91431/2 "2015-10-14T01:56:05Z")

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Locate where the heater hoses are connected at the fire wall, you will find a black plastic vacuum line. Follow that vacuum line to its source and inspect for breaks.