# Fan Switch

**URL:** <https://community.cartalk.com/t/fan-switch/63874>\
**Category:** Maintenance/Repairs\
**Tags:** f250, ford, fans\
**Created:** [April 20, 2011, 12:33am UTC](https://community.cartalk.com/t/fan-switch/63874 "2011-04-20T00:33:20Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![BobbyS](https://avatars.discourse-cdn.com/v4/letter/b/a9a28c/32.png) [@BobbyS](https://community.cartalk.com/u/BobbyS)\
**Post date:** [April 20, 2011, 12:33am UTC](https://community.cartalk.com/t/fan-switch/63874/1 "2011-04-20T00:33:20Z")

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I have a 2003 Ford F250. The fan switch doesn’t work on the first 2-3 settings - only on high. Can anyone suggest what would cause this and where I might look to try to fix the fan? Thanks.

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [April 20, 2011, 12:40am UTC](https://community.cartalk.com/t/fan-switch/63874/2 "2011-04-20T00:40:35Z")

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Your resistor block is probably damaged. The resistor block is used for slower speeds, but by-passed for high speed. These are usually located near the blower fan. Should look like this: [http://info.rockauto.com/getimage/getimage.php?imagekey=1285234&imageurl=http%3A//www.fordparts.com/PartImage.ashx%3Ffilename%3D4L3Z19A706AA-FRO%26dw%3D0%26dh%3D0%26type%3DJPGhttp://info.rockauto.com/getimage/getimage.php?imagekey=1191587&imageurl=http%3A//info.rockauto.com/Airtex/4P1367.jpg](http://info.rockauto.com/getimage/getimage.php?imagekey=1285234&imageurl=http%3A//www.fordparts.com/PartImage.ashx%3Ffilename%3D4L3Z19A706AA-FRO%26dw%3D0%26dh%3D0%26type%3DJPGhttp://info.rockauto.com/getimage/getimage.php?imagekey=1191587&imageurl=http%3A//info.rockauto.com/Airtex/4P1367.jpg)

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**Author:** ![BobbyS](https://avatars.discourse-cdn.com/v4/letter/b/a9a28c/32.png) [@BobbyS](https://community.cartalk.com/u/BobbyS)\
**Post date:** [April 20, 2011, 12:51am UTC](https://community.cartalk.com/t/fan-switch/63874/3 "2011-04-20T00:51:12Z")

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Thank you! I’ll check that out.