I’ve had my Onefinity for 8 months now, it’s been working well. But I went to turn it on today for a new project and nothing. The tablet comes on and works fine but doesn’t detect the control box. The fan of the control box doesn’t turn on and it appears to be completely dead. I’ve done all the cla…

Have you checked the fuse inside the control box? This happened to mine after a manual e-stop early on. After checking all of the externals like you have I contacted 1F support & they assisted with more troubleshooting. I have an electronics background so they advised checking all of the e-stop b…

No I haven’t checked that, and honestly I have no idea how to check it, but when my dad gets home he’ll be able to check it. But your reply has just reminded me that about a week ago, I had a power cut, my 1F was on but it wasn’t actually running a project it was just sitting idle and I was just ab…

I can’t say that is the cause but the Buildbotics Controller is pretty finicky about being shut down properly so power ‘dips’ or ‘spikes’ can’t be good for them. I’ve read a few post where others are using UPS devices (big battery inverters) as a backup. That is neither here nor there though. The…

Right ok, well it sounds simple enough, but my father is far better with electronics than I. So I’ll let him have a go at it. Thank you again for the reply, I’ll let you know if that was the problem, so hopefully others will see this post

There’s a FAQ for the location of the inline fuse. [image] Location of the Inline Fuse in the BB Controller (non Elite) Controller (Buildbotics) FAQ Fuse specs: 6a 250v, 5mx20mm Some older controllers do not contain an inline fuse [Inline Fuse 1] [Inline Fuse 2] [I…

Hey, so I just ended up opening the front myself. The first thing that was obvious was an insane amount of dust on the inside of the control box. I found the fuse and had a look at it, it appears fine. Theres no visble damage on the board or any of the other components. My father will likely have …

Hi again, so by the looks of it the power supply is completely dead. I’m now in contact with 1f support team. Thanks for all your help it’s much appreciated.

Hey me again for the last time. 1f sent me their troublshooting pdf and it turns out the switch was the problem. I followed their video, took the switch out, gave it a quick clean, and it worked straight away.

Hey Brandon, [image] Tallon117: 1f sent me their troublshooting pdf and it turns out the switch was the problem. does this mean you have the old model with the rocker switch model and it had dust inside like shown here , or do you already have the newer model with the contact switch ? [ima…

Definitely want to move that box much farther away from the source of dust (under the table or buy extensions to move it farther away) or this will happen again in the future!

Control box doesn't turn on

Original/PRO Series (Buildbotics) (Gen 1) Troubleshooting (X35/X50)

WaywardWoodworker (Derek Lokee) June 27, 2022, 2:12pm 6

There’s a FAQ for the location of the inline fuse.

Topic		Replies	Views
Onefinity Controller Not Turning On Troubleshooting (X35/X50)	11	3154	July 19, 2023
Buildbotics controller power failure? Troubleshooting (X35/X50)	11	208	February 7, 2026
BB Buildbotics Not Powering On - Troubleshooting (FAQ) Controller (Buildbotics) FAQ	0	190	December 13, 2025
My 1f control box will not power up Troubleshooting (X35/X50)	3	408	March 6, 2023
Control Box won't power on (solved, estop button pushed in) Original/PRO Series (Buildbotics) (Gen 1)	2	130	March 29, 2025

Control box doesn't turn on

Related topics