# Troubleshooting

Instrumentation > NovaSeq X/X Plus > Troubleshooting

* [How to Resolve "sma\_air\_a/b was not present in dictionary" Errors During Pre Run Checks on the NovaSeq X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000008539)
* [How to Troubleshoot No Intensity or 0% Passing Filter at Inlet and Outlet Tiles on NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007994)
* [How to enable ssh access on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000010077)
* [How to requeue or perform a new analysis of existing data on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007765)
* [How to resolve 'An unknown error has occurred' critical system errors on the NovaSeq X Series Instruments](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007997)
* [How to resolve 'Critical System Error: An unexpected error has occurred with system integration' during initialization on the NovaSeq X Series Instruments](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007766)
* [How to resolve Network Connection warnings during Pre Run Checks on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000008308)
* [How to resolve issues with keyboard tray ejecting on the NovaSeq X/X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007823)
* [How to troubleshoot "The instrument encountered a thermal coolant error" on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000008271)
* [How to troubleshoot CIB Fault Initialization errors on the NovaSeq X/X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007819)
* [How to troubleshoot Insufficient Memory errors during Pre Run Checks on the NovaSeq X Series Instruments](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000008466)
* [How to troubleshoot MaxWetS2SpotIntensity Errors during Wet Pre Run Checks on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000008269)
* [How to troubleshoot clustering failures on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000008328)
* [How to troubleshoot errors during the pre run Wet Checks on the NovaSeq X/X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007951)
* [How to troubleshoot low percent clusters passing filter (%PF) on the NovaSeq X/X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007783)
* [Troubleshooting "Unable to update index information of the Library" on the NovaSeq X/X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000007947)
* [Troubleshooting 'A configuration file cannot be assessed' Warnings during Pre Run Checks on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009365)
* [Troubleshooting 'Insufficient memory to continue the execution of the program' errors on the NovaSeq X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000008636)
* [Troubleshooting 'One or more unknown settings found' Errors during Run Planning on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009387)
* [Troubleshooting Flow Cell Vacuum Failed to Engage on the NovaSeq X/X Plus](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009297)
* [Troubleshooting Issues with Allocating Disk Space during Pre Run Checks on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009383)
* [Troubleshooting Lyo Insert errors during run set up on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009778)
* [Troubleshooting Reagent Compartment Doors Failing to Unlock on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009121)
* [Troubleshooting Regions of Reduced %Passing Filter on NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009570)
* [Troubleshooting multiple entries with identical indices error during run setup on NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009153)
* [Troubleshooting the large waste bottle is full error on the NovaSeq X Series](https://knowledge.illumina.com/instrumentation/novaseq-x-x-plus/instrumentation-novaseq-x-x-plus-troubleshooting-list/000009829)