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# Precipitation and Resuspension Troubleshooting Guide in Infinium Assay
Precipitation and Resuspension are critical steps in the Infinium workflow. The complete absence of expected pellets may indicate issues related to sample quality, reagent performance, and/or reagent handling.
The table below lists some of the most common issues observed during the precipitation and re-suspension steps in an Infinium assay workflow, the probable cause and methods to resolve the issue.
**Table 1.** Common issues, probable causes, and suggested solutions for Precipitation and Resuspension steps.
**Reference:**
[Infinium Lab Set Setup & Best Practices Troubleshooting](https://support-docs.illumina.com/ARR/InfLabSetup/Content/ARR/SetupandProcedures/fINF_Troubleshooting.htm)
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