# Manual & Auto cooling fan control

**URL:** <https://community.ecumaster.com/t/manual-auto-cooling-fan-control/2352>\
**Category:** EMU PRO\
**Created:** [September 22, 2024, 11:12am UTC](https://community.ecumaster.com/t/manual-auto-cooling-fan-control/2352 "2024-09-22T11:12:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Rossco](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/rossco/32/899_2.png) [@Rossco](https://community.ecumaster.com/u/Rossco)\
**Post date:** [September 22, 2024, 11:12am UTC](https://community.ecumaster.com/t/manual-auto-cooling-fan-control/2352/1 "2024-09-22T11:12:42Z")

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Hi Guys,

I know this is possible with the use of the project tree, just looking to see if someone can help me set this up? im not sure on the logic to make this work

currently have both of my fans coming on auto, would like to use one of my keypad buttons to override and keep them on until i switch them off please.

Thanks

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**Author:** ![mkuklis\_ECUMASTER](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/mkuklis_ecumaster/32/104_2.png) [@mkuklis\_ECUMASTER](https://community.ecumaster.com/u/mkuklis_ECUMASTER)\
**Post date:** [September 24, 2024, 2:43pm UTC](https://community.ecumaster.com/t/manual-auto-cooling-fan-control/2352/2 "2024-09-24T14:43:46Z")

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Hi,  
It’s not intuitive, but possible.  
We will try to change some things to make it easier in future versions.

To achieve your desired result, you must use custom output. Combine the coolant fan state and keypad button state to enable custom output.

**Coolant fan state description:**

 ![obraz](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/4/47e181eed480cc5d2c511a98e6a54a91e19522b6.png)

**Custom logic:**  
 ![obraz](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/7/7a64581345c7f46b296699bc1341805ebd1d8c4f.png)

**Custom output:**  
 ![obraz](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/0/023ffb2642a764a5b708c844ef097b9e83e331af.png)

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<div class="post-metadata">

**Author:** ![Rossco](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/rossco/32/899_2.png) [@Rossco](https://community.ecumaster.com/u/Rossco)\
**Post date:** [September 24, 2024, 3:46pm UTC](https://community.ecumaster.com/t/manual-auto-cooling-fan-control/2352/3 "2024-09-24T15:46:59Z")

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Thanks again for your help Marek i appreciate it.