# What does NextSeq 1000/2000 status bar color mean? The NextSeq 1000/2000 instrument includes a light-emitting diode (LED) status bar beneath the touch screen monitor that surrounds the instrument. The status bar provides an at-a-glance indication of the instrument state. The light color progresses as the system moves through its workflow. * **Blue and purple**: indicate interactivity (eg, pre-run checks) * **Multicolor**: indicates notable moments and data (eg, sequencing completion) * **Red**: critical errors ![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-8230a069a29e936597d78997a645a1215bfc55b9%2Fimage1.jpg?alt=media\&token=8734fbf1-220c-4c9a-99b8-e0f75bfdaf88) The image below shows the different LED indicator light settings on the NextSeq 1000/2000, showing loading, pre-run, sequencing, completion, and error.\ ![](https://761066130-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGM9W2DuBTgEXv1ClCm8H%2Fuploads%2Fgit-blob-e45571d689184d5fbd74637ebc08e69cbea0c0ac%2Fimage2.png?alt=media) Reference: [NextSeq 1000/2000 Product Documentation](https://support.illumina.com/downloads/nextseq-1000-2000-product-documentation-200027171.html)\ \ \ \
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