# Control box doesn't turn on

**URL:** https://forum.onefinitycnc.com/t/control-box-doesnt-turn-on/13837
**Category:** Troubleshooting (X35/X50)
**Created:** [June 27, 2022, 12:40pm UTC](https://forum.onefinitycnc.com/t/control-box-doesnt-turn-on/13837 "2022-06-27T12:40:29Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)
#### Post date: [June 28, 2022, 11:12am UTC](https://forum.onefinitycnc.com/t/control-box-doesnt-turn-on/13837/10 "2022-06-28T11:12:19Z")

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Hey Brandon,

> [@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](https://forum.onefinitycnc.com/t/on-off-switch-broken-again/10126/16) and it had dust inside [like shown here](https://forum.onefinitycnc.com/t/power-switch-request/8887/4), or do you already have the [newer model with the contact switch](https://forum.onefinitycnc.com/t/automatically-power-up-controller-when-ac-is-present/12756)?

> [@Tallon117](#):
>
> The first thing that was obvious was an insane amount of dust on the inside of the control box.

(that’s why I ask)

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