> For the complete documentation index, see [llms.txt](https://knowledge.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledge.illumina.com/instrumentation/novaseq-6000/instrumentation-novaseq-6000-reference_material-list/000002490.md).

# Troubleshooting Focus Camera (FTM) system check failure on the NovaSeq 6000

A Focus Camera failure during the NovaSeq 6000 system checks can be caused by a transient instrument communication issue, or it can be indicative of an instrument hardware issue.

**Troubleshooting steps:**

* Perform a power cycle on the instrument.
  * For more information on power cycling, search for Knowledge Base article **How to Power Cycle the NovaSeq 6000 System?**
  * **Note**: Focus Camera test on system check will fail if it is performed immediately after a run failure. Power cycling the instrument is **required** to reset communication pathways.
* Repeat the system check after the power cycle. For additional details, search for Knowledge Base article **How to perform system checks on the NovaSeq 6000?**
* Contact [Illumina Technical Support](https://www.illumina.com/company/contact-us.html) if the Focus Camera test fails after the power cycle.

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #2490), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000002490%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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