# Power on fails

## Before you move on

You are here because your BactoBox® fails to [power on](/getting-started/installation/power-on.md). In other words, the display doesn't even show the SBT logo.

Is this not the case? Then let's take a step back. Is your BactoBox® stuck at the SBT logo? Does your BactoBox® suddenly power off?

See also [BactoBox® acting up?](/troubleshooting/bactobox-r-acting-up.md).

<img src="/files/rsjkfyIb2XuA2iWggxCh" alt="" class="gitbook-drawing">

## The BactoBox® power indicator does not light up

You flip the rocker switch to the *On* position but the the BactoBox® power indicator does not light up.

{% hint style="info" %}

## BactoBox® power indicator

The BactoBox® power indicator is the green LED (*H* in the image below) right next to the power plug (*I* in the image below).

<img src="/files/fpr2r9HNDO2bPFXal7Dx" alt="" data-size="original">
{% endhint %}

Follow these steps in sequence:

{% stepper %}
{% step %}

#### Check power cable in BactoBox®

Check that the power cable is *fully* inserted into BactoBox® (see image below).

<figure><img src="/files/dbuwF1bIzbYA76JT5T0m" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

#### Check wall socket

Ensure that the power supply is fully inserted into the wall socket. Ensure that the wall socket is turned on.
{% endstep %}

{% step %}

#### Check the [power supply](/encyclopedia/item-register/accessories/power-supply.md)

The power supply itself also has a power indicator (green LED on the top). Does the power supply's power indicator light up? If not, then this indicates a problem with your power supply.

**You need a new power supply.** [Contact our support team](/troubleshooting/contact-our-support-team.md) to discuss the matter further.

<figure><img src="/files/1omdrMVDIomAezOOcJcR" alt=""><figcaption><p>Power supply</p></figcaption></figure>
{% endstep %}
{% endstepper %}

## The BactoBox® power indicator turns on but the display is dark

You flip the rocker switch to the *On* position, the BactoBox® power indicator lights up, but then nothing more happens. Specifically, there is no SBT logo on the display.

This is a hardware issue with your BactoBox® setup. [Contact our support team](/troubleshooting/contact-our-support-team.md) to discuss the matter further. Make sure to mention it if you found:

* A leak inside the flow cell compartment
* Sign of corrosion or deterioration inside the flow cell department
* Broken or loose inlet/outlet (where you connect the tubing kit to your BactoBox®)
* Rattling or loose components
* In general, hardware damage of any kind

If possible, include pictures of the problem. This helps us help you faster!


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