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Error 68:01Medium Severity

Fan Failure

Last updated: February 21, 2026

Severity:Medium Severity
Affected:0 models
DIY Fix:Possible
System error code: 86:01 on HP T790 T1300 T2300 Designjet Printer

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System error code: 86:01 on HP T790 T1300 T2300 Designjet Printer

System error code: 86:01 on HP T790 T1300 T2300 Designjet Printer See this video: https://youtu.be/Lhb-g4gKpKE Carriage ...

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What This Error Means

This error indicates that one or more of the printer's cooling fans are not operating correctly. Fans are essential for dissipating heat from critical components like the formatter board, power supply, and print engine. Overheating can lead to component damage and erratic printer behavior.

Step-by-Step Troubleshooting Guide
  1. 1

    Turn off the printer and unplug the power cord.

  2. 2

    Locate the fan vents on the printer chassis (often on the back, sides, or near the formatter board).

  3. 3

    Use compressed air to carefully clean any dust or debris from the fan vents and blades. Ensure the fan can spin freely.

  4. 4

    Check for any obstructions (e.g., loose paper, cables) that might be blocking the fan blades.

  5. 5

    Ensure the printer is placed in a well-ventilated area, away from walls or other equipment that might block airflow.

  6. 6

    Plug in the printer and turn it on. Listen for the fans to spin up.

Pro Tips from Experts

Model-Specific Notes: • T-Series (e.g., T1600/T2600): These models often have multiple fans (formatter, power supply, print zone). Try to identify which fan is failing by listening or by feel. • Z-Series (e.g., Z6800/Z9+): Pay attention to the fan located near the main electronics board. These are crucial for processor cooling. • PageWide XL: These printers have a more extensive cooling system. A fan error might indicate a problem with a specific cooling zone or module. Expert Insight: After cleaning, power on the printer and listen carefully. You should hear the fans spin up. If a fan is not spinning, or is making excessive noise, it's likely faulty. Sometimes, a fan will spin but not at the correct RPM, which can still trigger this error. Ensure the printer is not placed in an enclosed cabinet or directly against a wall. If the fan is easily accessible, check its cable connection to the board. If the fan is seized, a gentle nudge with a non-conductive tool (with power off) can sometimes free it, but this is usually a temporary fix for a failing motor. Replacement of the specific fan module is typically required.

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