Fan for Flashforge C4/G3+/G3 4010 — 3D printer cooling accessory

Replacement cooling fan designed for Flashforge C4, G3+ and G3 3D printers (model 4010). This fan provides steady airflow to the hotend or part cooling system, helping to stabilise nozzle temperature and improve layer adhesion. The unit includes a mounting interface compatible with original Flashforge parts, making it suitable for routine maintenance, repairs or upgrades to maintain print quality and reduce the risk of thermal issues.

Advantages

The fan delivers consistent airflow with a compact 4010 form factor that fits standard mounting positions on compatible Flashforge machines. Its design focuses on reliability and straightforward installation, providing a direct replacement without modifying existing ducts or mounts. Improved cooling performance can lead to better surface finish and more reliable bridging and overhang printing when integrated correctly.

Suitable for

• Repairing a failed or noisy hotend cooling fan on Flashforge C4, G3+ or G3 printers
• Routine maintenance to restore original cooling performance
• Upgrading an ageing fan to maintain consistent print temperatures
• Replacing damaged or worn mounting-compatible cooling components

Key specifications

• Form factor: 40 x 40 x 10 mm (4010 size)
• Compatibility: designed to mount in original Flashforge mounting points for C4, G3+ and G3 models
• Application: hotend or part cooling for desktop FDM/FFF 3D printers
• Connector type: compatible with standard small 2- or 3-pin printer fan connectors (verify connector before installation)
• Mounting: includes interface compatible with original Flashforge parts for direct replacement

How to use

Power down and unplug the 3D printer before replacing the cooling fan. Remove the printer cover or ducting as required to access the existing fan, then disconnect the fan connector from the control board or wiring harness. Unscrew the old fan from its mount, align the replacement fan with the mounting holes and secure it using the original screws. Reconnect the connector ensuring correct polarity and routing to avoid interference with moving parts. Reassemble any covers or ducts and perform a test run to confirm proper airflow and that the fan operates without unusual noise or vibration.

Recommendations

Verify connector type and orientation before installation; if your printer uses a different connector or wiring, adapt with a suitable cable or seek professional assistance. Regularly clean the fan and surrounding ducting to prevent dust buildup and inspect for abnormal noise or reduced RPMs—replace the fan if performance degrades. When adjusting part cooling settings in slicing software, monitor prints for optimal layer cooling while avoiding excessive cooling that can cause warping on certain materials.