fan_error
Easy Fix
Anycubic · FDM 3D Printers
Cooling Fan Not Spinning or RPM Below Threshold
Quick Answer
Error code FAN_ERROR on your Anycubic FDM 3D Printers means: Cooling Fan Not Spinning or RPM Below Threshold. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Visually check both the hotend fan and part cooling fan for obstructions
2
Spin each fan by hand (printer off) to check for bearing smoothness
3
Verify fan cable connections on the mainboard
4
Test the fan by connecting it directly to a 24V power source to confirm it operates
5
Replace the fan if the bearing is noisy or seized
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Replacement 4010 axial fan (hotend cooling)
Replacement 5015 blower fan (part cooling)
Fan cable extensions
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