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Error 43:01Medium Severity

Vacuum Fan spinning at wrong speed

Last updated: February 22, 2026

Severity:Medium Severity
Affected:0 models
DIY Fix:Possible
HP 66.90.43 error

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HP 66.90.43 error

How to fix error 66.90.43.

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What This Error Means

Vacuum Fan spinning at wrong speed

Step-by-Step Troubleshooting Guide
  1. 1

    Turn off/on. If the system error persists, replace the Vacuum Fan

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Related Glossary Terms
Vacuum Fan

A fan located beneath the platen that creates suction to hold media flat against the printing surface during printing.

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