What happened?
The printer is showing the message "Hotend fan not spinning. Check it for possible debris, then inspect the wiring."
Error name: Hotend fan error
Error code: #31828 (CORE One) #26828 (MK4S) #27828 (MK3.9S) #13828 (MK4) #21828 (MK3.9) #17828 (XL)
How to fix it?
Check if nothing is stopping the fan from spinning. Use compressed air to clean the fan blades.
Make sure that the fan is installed correctly.
If the issue persists, check the fan cables:
 |  |
| Loveboard wiring (MK3.9/S, MK4/S, CORE One) | Dwarf board (XL) |
In case you see any damage, make some Photo and video documentation and contact our Customer support.
Was this article helpful?
This action is available only to registered users. Please log-in.