# Fuse blown immediately after connecting to the brain

**URL:** <https://discourse.farm-ng.com/t/fuse-blown-immediately-after-connecting-to-the-brain/492>\
**Category:** support\
**Tags:** amiga-brain\
**Created:** [March 4, 2025, 8:30pm UTC](https://discourse.farm-ng.com/t/fuse-blown-immediately-after-connecting-to-the-brain/492 "2025-03-04T20:30:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![KODAI](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.farm-ng.com/kodai/32/364_2.png) [@KODAI](https://discourse.farm-ng.com/u/KODAI)\
**Post date:** [March 4, 2025, 8:30pm UTC](https://discourse.farm-ng.com/t/fuse-blown-immediately-after-connecting-to-the-brain/492/1 "2025-03-04T20:30:04Z")

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Whenever I connect m12 cable to the brain(ofc from the canhub), the fuse in the fork B gets blown. Without connecting to the brain, the amiga can run without any problem. Can you help me to detect an issue?

I already checked there is no damage on the CAN cables. Moreover, I replaced the m12 cable to the brain with a new one, but the same problem happened. So, the cable part is not a problem.

We used the brain only a few hours in total.

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**Author:** ![KODAI](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.farm-ng.com/kodai/32/364_2.png) [@KODAI](https://discourse.farm-ng.com/u/KODAI)\
**Post date:** [March 5, 2025, 2:37pm UTC](https://discourse.farm-ng.com/t/fuse-blown-immediately-after-connecting-to-the-brain/492/2 "2025-03-05T14:37:43Z")

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Thanks to the email exchange with the support team, we figured out that there are some resistence between pin2 and 3 of the power connector of the brain.

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**Author:** ![MScatolin](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.farm-ng.com/mscatolin/32/312_2.png) [@MScatolin](https://discourse.farm-ng.com/u/MScatolin)\
**Post date:** [March 11, 2025, 1:38pm UTC](https://discourse.farm-ng.com/t/fuse-blown-immediately-after-connecting-to-the-brain/492/3 "2025-03-11T13:38:40Z")

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Yes, we will open the Brain and check the board that powers it up.