The Bambu Lab Control Board Fan is the OEM replacement for the cooling fan that maintains safe operating temperatures for the printer's mainboard electronics. The control board manages all printer functions including motion control, heater regulation, sensor processing, and communication, and generates heat during continuous operation. The cooling fan ensures this heat is dissipated effectively, preventing thermal throttling or electronic component damage during long print sessions.

If the control board fan fails or becomes noisy, the mainboard is at risk of overheating, which can cause erratic printer behaviour, unexpected resets, or permanent board damage. This OEM fan is a direct replacement that restores adequate airflow to the control board bay and ensures reliable long-term operation.

Key features

• OEM cooling fan for the printer mainboard, maintaining safe electronics temperatures during printing.
• Prevents thermal throttling and mainboard damage caused by insufficient control board cooling.
• Restores reliable operation when the original fan has become noisy, slow, or stopped completely.
• Direct OEM fit for the mainboard fan housing in the relevant Bambu Lab printer model.
• Also available: Chamber Temperature Regulator Fan (article 210000005889) for the chamber airflow system.

Compatible with: Bambu Lab P1P, P1S, X1, X1C