¶ What does it look like
Abnormal mainboard fan
¶ How to fix
Check the motherboard cooling fan cable and motherboard indicator light in turn.
¶ Tools necessary for toubleshooting
A 2.0 mm Allen key
¶ Troubleshooting steps
¶ Re-plug the motherboard cooling fan cable
- Power off the printer and unplug the power cord. Loosen the 10 screws securing the bottom cover of the printer using a 2.0 mm Allen key.
- Re-plug the motherboard cooling fan cable and check the pin of the fuse. (The figure below shows normal pin.)
- Plug the cable. Power on the printer. Return the printer homing position. Check if the error still occurs.
Warning: Do not touch any electronic components after powering on the printer to avoid electric shock.
¶ Check the motherboard indicator light when the printer returns to home position
- Power on the printer. Return the printer homing position. Check if the motherboard indicator light.
Warning: Do not touch any electronic components after powering on the printer to avoid electric shock.
If the motherboard cooling fan can't rotate normally during the homing process and the indicator light on the motherboard does not turn on, replace the motherboard with a new one.
- If the motherboard indicator light turns on, check whether the motherboard cooling fan can rotate normally.
If the motherboard cooling fan is running slowly or intermittently, replace it with a new motherboard cooling fan.