# Fan turns on but nothing **URL:** \ **Category:** Troubleshooting (X35/X50)\ **Created:** [January 10, 2025, 4:33pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399 "2025-01-10T16:33:13Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![GregoryG](https://avatars.discourse-cdn.com/v4/letter/g/97f17d/32.png) [@GregoryG](https://forum.onefinitycnc.com/u/GregoryG)\ **Post date:** [January 10, 2025, 4:33pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/1 "2025-01-10T16:33:13Z")
I ran machine yesturday fine went out today to finish hit toggle and screenYou can hear machine start screen shows onefinity logo then goes blank Tried to login Using ip nothing Unplugged for a few still nothing hit E switch twisted and pulled up nothing please help ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [January 10, 2025, 5:26pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/2 "2025-01-10T17:26:22Z")
More info would be helpful, starting with machine type. ---
**Author:** ![GregoryG](https://avatars.discourse-cdn.com/v4/letter/g/97f17d/32.png) [@GregoryG](https://forum.onefinitycnc.com/u/GregoryG)\ **Post date:** [January 10, 2025, 5:48pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/3 "2025-01-10T17:48:56Z")
I have original buildbotic controller ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [January 10, 2025, 6:13pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/4 "2025-01-10T18:13:54Z")
> [@No signal on Screen / No video output from BB controller - Troubleshooting Video](https://forum.onefinitycnc.com/t/no-signal-on-screen-no-video-output-from-bb-controller-troubleshooting-video/11505): > > If the screen is turning on and showing a blue splash screen but no input video, try the following: (this should be an obvious first step, but make sure everything is plugged in exactly as this faq shows (a lot of people forget the wall power plug): [How to connect the Touch Display (7, 8, 10.8")](https://forum.onefinitycnc.com/t/how-to-connect-the-touch-display-7-8-10-8/5081)) Ensure the Big Red Physical Estop on the black control box is up/released. Twist and pull up hard to release it. The controller will not turn on (no lights, no fan sound from inside the box) and not… ---
**Author:** ![GregoryG](https://avatars.discourse-cdn.com/v4/letter/g/97f17d/32.png) [@GregoryG](https://forum.onefinitycnc.com/u/GregoryG)\ **Post date:** [January 10, 2025, 10:17pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/5 "2025-01-10T22:17:45Z")
I checked all the usual and abvious The screen goes to the booting screen then turns to A pale gray almost like if it’s off You can hear fan of controller on ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [January 10, 2025, 10:37pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/6 "2025-01-10T22:37:29Z")
Work with support at [support@onefinitycnc.com](mailto:support@onefinitycnc.com) ---
**Author:** ![GregoryG](https://avatars.discourse-cdn.com/v4/letter/g/97f17d/32.png) [@GregoryG](https://forum.onefinitycnc.com/u/GregoryG)\ **Post date:** [January 10, 2025, 11:02pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/7 "2025-01-10T23:02:43Z")
Yes I’ve reached out to support No response ---
**Author:** ![OnefinityCNC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/onefinitycnc/32/7_2.png) [@OnefinityCNC](https://forum.onefinitycnc.com/u/OnefinityCNC)\ **Post date:** [January 10, 2025, 11:33pm UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/8 "2025-01-10T23:33:59Z")
Hi gregory, I’ve check the support email and you sent them a blank email with not body at 10:06 am eastern this morning. They responded back ‘Hi Gregory, your email was blank. How can we help?’ at 10:06 am eastern 30 seconds after they received your email. No reply was sent by you. ---
**Author:** ![Justdust](https://avatars.discourse-cdn.com/v4/letter/j/77aa72/32.png) [@Justdust](https://forum.onefinitycnc.com/u/Justdust)\ **Post date:** [January 11, 2025, 2:38am UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/9 "2025-01-11T02:38:31Z")
Try replacing both usb power cords. One goes to a power brick, and the black box… It likes to eat them, and you need to feed it 2 news ones after a while ---
**Author:** ![GregoryG](https://avatars.discourse-cdn.com/v4/letter/g/97f17d/32.png) [@GregoryG](https://forum.onefinitycnc.com/u/GregoryG)\ **Post date:** [January 11, 2025, 5:44am UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/10 "2025-01-11T05:44:15Z")
Is that on the masso ---
**Author:** ![GregoryG](https://avatars.discourse-cdn.com/v4/letter/g/97f17d/32.png) [@GregoryG](https://forum.onefinitycnc.com/u/GregoryG)\ **Post date:** [January 11, 2025, 5:45am UTC](https://forum.onefinitycnc.com/t/fan-turns-on-but-nothing/30399/11 "2025-01-11T05:45:21Z")
I’m thinking controller is toast Hoping someone is selling one a build botics one