# Preventive maintenance

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<figure><img src="https://4216107837-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeYTtd7c0A325muFr5lMW%2Fuploads%2FtUcZFGJpJNibf7ubb8A9%2Fimage.png?alt=media&#x26;token=aa5b740e-c34e-4852-b420-59120e4dc3af" alt=""><figcaption><p>Photograph of the <em>Service check</em> sticker that we put on your BactoBox® after <a data-mention href="preventive-maintenance">preventive-maintenance</a>.</p></figcaption></figure>

<a href="mailto:sales@sbtinstruments.com" class="button primary" data-icon="envelope">Contact SBT to purchase</a>
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:label: Individual item number `BB11`&#x20;

:label: Bundled as `SA02`&#x20;

Preventive maintenance ensures optimal BactoBox® performance and reliability.
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<table><thead><tr><th width="100">Item no.</th><th width="106" data-type="number">Quantity</th><th>Note</th></tr></thead><tbody><tr><td><code>BB11</code></td><td>1</td><td><a data-mention href="#what-is-preventive-maintenance">#what-is-preventive-maintenance</a></td></tr><tr><td><code>SA02</code></td><td>2</td><td>Includes 24-month warranty for your <a data-mention href="../bactobox-r">bactobox-r</a></td></tr></tbody></table>

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## Preventive maintenance is part of your [service agreement](https://help.sbtinstruments.com/encyclopedia/item-register/service-agreement)

Your [](https://help.sbtinstruments.com/encyclopedia/item-register/service-agreement "mention") offers 24 month warranty and includes 2 × [preventive-maintenance](https://help.sbtinstruments.com/encyclopedia/item-register/service-agreement/preventive-maintenance "mention").
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## When to do preventive maintenance

Schedule your BactoBox® for [preventive maintenance](https://help.sbtinstruments.com/encyclopedia/item-register/service-agreement/preventive-maintenance) in these cases:

* **At least once a year.**
* When the [check-engine-light](https://help.sbtinstruments.com/encyclopedia/maintenance/check-engine-light "mention") shows.

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When the [check-engine-light](https://help.sbtinstruments.com/encyclopedia/maintenance/check-engine-light "mention") appears, schedule [preventive-maintenance](https://help.sbtinstruments.com/encyclopedia/item-register/service-agreement/preventive-maintenance "mention") as soon as possible.
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## What is preventive maintenance

Preventive maintenance is a series of repairing/replacing parts in your BactoBox® and subsequent checks. Preventive maintenance ensures optimal BactoBox® performance and reliability.

This is an *incomplete* list of the preventive maintenance steps:

* Replace the pump tubing
* Replace the internal filter
* [Update software](https://help.sbtinstruments.com/getting-started/best-practices/update-bactobox-r-software) to the [latest version
  ](https://help.sbtinstruments.com/encyclopedia/software/bactobox-r-software-changelog)
* Check all hardware and sensors
* Perform leakage tests
* Test unit functionality

Our technical team in Denmark handles preventive maintenance.

## How to schedule preventive maintenance

[Contact SBT](mailto:sales@sbtinstruments.com) for more information about your options.