¶ Hotend Cooling Fan Air Duct
¶ Applicable Printer Models
H2D, H2DL
¶ When to Use
- The hotend cooling fan air duct is damaged
- Recommended by Bambu Lab technical support for replacement
¶ Required Tools and Materials
- H1.5 screwdriver
- H2.0 screwdriver
- Hotend Cooling Fan Air Duct
¶ Safety Warning
It's crucial to power off the printer before conducting any maintenance work, including work on the printer's electronics and tool head wires. Performing tasks with the printer on can result in a short circuit, leading to electronic damage and safety hazards.
During maintenance or troubleshooting, you may need to disassemble parts, including the hotend. This exposes wires and electrical components that could short circuit if they contact each other, other metal, or electronic components while the printer is still on. This can result in damage to the printer's electronics and additional issues.
Therefore, it's crucial to turn off the printer and disconnect it from the power source before conducting any maintenance. This prevents short circuits or damage to the printer's electronics, ensuring safe and effective maintenance. For any concerns or questions about following this guide, open a new ticket in our Support Page and we will do our best to respond promptly and provide the assistance you need.
¶ Left Air Duct Replacement
¶ Removing the Left Air Duct
¶ 1. Remove the Part Cooling Fan Air Duct
You can refer to the following video or the Part Cooling Fan Air Duct Replacement Guide to remove the air duct.
¶ 2. Remove the Left Nozzle Assembly
Remove the left nozzle silicone cover, release the quick-release latch, and remove the nozzle.
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¶ 3. Remove the Hotend Cooling Fan Air Duct
After completing the above steps, you will see the fixing screws for the left air duct. Use an H1.5 screwdriver to remove the screws (M2*5), then take out the air duct.
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¶ Installing the Left Air Duct
¶ 1. Install the Hotend Cooling Fan Air Duct
Insert the left air duct and secure it with an H1.5 screwdriver.
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¶ 2. Install the Left Nozzle Assembly
Install the nozzle assembly in the same manner, ensuring the quick-release latch is properly secured.
 Incorrect nozzle latch securing |
 Correct nozzle latch securing |
¶ 3. Install the Part Cooling Fan Air Duct
You can refer to the following video or the Part Cooling Fan Air Duct Replacement Guide to install the air duct.
¶ Right Air Duct Replacement
¶ Removing the Right Air Duct
¶ 1. Remove the Part Cooling Fan Air Duct
You can refer to the following video or the Part Cooling Fan Air Duct Replacement Guide to remove the air duct.
¶ 2. Remove the Hotend Cooling Fan Air Duct
Using an H1.5 screwdriver, remove the two fixing screws (M2*5) of the air duct, then flip it outward to remove the right air duct.
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Refer to the following animation for specific steps.
The air duct after proper removal is shown below.
¶ Installing the Right Air Duct
¶ 1. Install the Hotend Cooling Fan Air Duct
Insert the air duct and rotate it inward to secure its position, then install the two fixing screws to complete the air duct installation.
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Refer to the following animation for specific installation steps.
¶ 2. Install the Part Cooling Fan Air Duct
You can refer to the following video or the Part Cooling Fan Air Duct Replacement Guide to install the air duct.
¶ End Notes
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, we will answer your questions and provide assistance.
If you have any suggestions or feedback on this Wiki, please leave a message in the comment area. Thank you for your support and attention!