> For the complete documentation index, see [llms.txt](https://help.sbtinstruments.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sbtinstruments.com/troubleshooting/qc-test-passes-but.../errors-about-conductivity/cleaning-liquid-not-disinfectant.md).

# Cleaning liquid is not disinfectant

## Introduction

You get error 1207 when the cleaning liquid conducts too much during a clean. The [Disinfection vial](/item-register/vials-flasks-and-liquids/disinfection-vial.md) holds a liquid that barely conducts. So a high conductivity means the liquid is not disinfectant, and your BactoBox® was not cleaned.

There are two common causes:

* You loaded the wrong liquid. For example, you loaded dilution liquid instead of a disinfection vial.
* You reused the same disinfection vial too many times. Each reuse adds a little conductivity. Use a disinfection vial at most 10 times.

## Step by step

{% stepper %}
{% step %}

#### Check that you loaded a disinfection vial

Make sure you loaded a disinfection vial, not dilution liquid or another liquid.
{% endstep %}

{% step %}

#### Use a fresh disinfection vial

Reuse adds conductivity over time. Use a disinfection vial at most 10 times. When in doubt, grab a fresh one. See [Clean](/maintenance/clean-the-setup.md).
{% endstep %}

{% step %}

#### Repeat the clean

Repeat with a fresh disinfection vial.
{% endstep %}
{% endstepper %}

## Tried all of the above

Did you try all of the above and nothing helped?

This is a hardware issue with your BactoBox® setup. [Contact our support team](/troubleshooting/contact-our-support-team/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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