The Cooling Fan for Hotend, situated between the TH board and extruder, cools the hotend to avoid premature filament softening and clogs.
Special note for H2S: If your product SKU is FAH047, please make sure to check the fan orientation before installation. If the orientation is incorrect, follow the Appendix steps to adjust it. If your product SKU is FAH047-V1, you can skip the appendix instructions and proceed with installation directly.