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Error 0021-0003-0261Medium Severity

There is an electrical fault in Primer valve 2

Last updated: February 22, 2026

Severity:Medium Severity
Affected:0 models
DIY Fix:Possible
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What This Error Means

There is an electrical fault in Primer valve 2

Step-by-Step Troubleshooting Guide
  1. 1

    Restart. Check valve and connectors properly connected? not broken, dirty,damaged? Run the 02103 Check Primer motor, replace Primer valve, replace Engine PCA

Technical Service Diagrams

Reference diagrams for common repair procedures related to this error:

Carriage Belt Replacement

HP DesignJet Carriage Belt Replacement Diagram

Note: These diagrams are for reference only. Always consult official HP service documentation and follow proper ESD precautions.

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