{"product_id":"extruder-connection-board-h2d-h2c-for-bambu-lab-1","title":"Extruder Connection Board - H2D \/ H2C for Bambu Lab","description":"\u003cp\u003eThe Extruder Connection Board is installed on the back of the toolhead and primarily serves to connect and manage the electrical signals and power supply for the extruder. It acts as an interface between the extruder components and the main control system, ensuring stable operation of sensors, heating elements, and motors.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eLearn more about H2D Extruder Connection Board on Bambu Lab Wiki.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0759\/4531\/2569\/files\/Extruder_Connection_Board_a3a8f4c5-e750-4c16-b681-ce635b17eac1.png?v=1767778508\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eLearn more about H2C Extruder Connection Board on Bambu Lab Wiki.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0759\/4531\/2569\/files\/Extruder_Connection_Board_883b251f-4eb1-446f-a617-ebf238bb3055.png?v=1767778474\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003ch3\u003eFor H2D\u003c\/h3\u003e\n\u003cp\u003e- H2D Extruder Connection Board*1\u003c\/p\u003e\n\u003cp\u003e- M1.6-4 Screw*2\u003c\/p\u003e\n\u003ch3\u003eFor H2C\u003c\/h3\u003e\n\u003cp\u003e- Extruder Connection Board*1\u003c\/p\u003e\n\u003cp\u003e- M1.6x4 Screw *2\u003c\/p\u003e\n\u003cp\u003e- Thermal Silicone Pad *1\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eH2D and H2D Laser\u003c\/p\u003e\n\u003cp\u003eH2C and H2C Laser\u003c\/p\u003e\n\u003ch3\u003eExtruder Connection Board Replacement Guide for the H2C\u003c\/h3\u003e\n\u003cp\u003eThis article will provide you with a detailed guide on the step-by-step process and important considerations for replacing the extruder connection board on your H2C.\u003c\/p\u003e\n\u003ch3\u003eExtruder Connection Board\u003c\/h3\u003e\n\u003cp\u003eThe extruder connection board is located on the back of the toolhead and linked to the TH board through an FPC cable.\u003c\/p\u003e\n\u003ch3\u003eThe accessories included with the extruder connection board are as follows:\u003c\/h3\u003e\n\u003cp\u003eExtruder connection board * 1\u003c\/p\u003e\n\u003cp\u003eM1.6x4 screws - for securing the extruder connection board * 2\u003c\/p\u003e\n\u003cp\u003eThermal conductive silicone pad * 1\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"image-11.png\" src=\"https:\/\/wiki.bambulab.com\/h2\/maintenance\/replace-h2d-th-board\/image-11.png\"\u003e\u003c\/p\u003e\n\u003ch3\u003eRequired Tools and Materials\u003c\/h3\u003e\n\u003cp\u003eNew extruder connection board\u003c\/p\u003e\n\u003cp\u003eH2.0 hex wrench\u003c\/p\u003e\n\u003cp\u003eH1.5 hex wrench\u003c\/p\u003e\n\u003ch3\u003eSafety Warning\u003c\/h3\u003e\n\u003cp\u003eIt'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.\u003cbr\u003eDuring 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.\u003cbr\u003eTherefore, 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.\u003c\/p\u003e\n\u003ch3\u003eRemoving the Old Extruder Connection Board\u003c\/h3\u003e\n\u003ch3\u003eStep 1: Remove the Part Cooling Fan and Duct\u003c\/h3\u003e\n\u003cp\u003eYou can refer to the H2C Part Cooling Fan Replacement Guide or the video below (first 1 minute 40 seconds) to remove the part cooling fan and part cooling fan duct.\u003c\/p\u003e\n\u003ch3\u003eStep 2: Remove the Extruder Connection Board\u003c\/h3\u003e\n\u003cp\u003eDisconnect the 2004 switching motor FPC plug (#1), the TH board interface FPC plug (#2), and the 2004 lifting motor FPC plug (#3) from the interface board in sequence.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/public-cdn.bblmw.com\/wiki\/new\/h2c\/maintenance\/replace-th-board\/16.png\" alt=\"16.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0759\/4531\/2569\/files\/ScreenShot_2026-01-07_174326_541_e6e7f226-5701-407c-a3f2-8d242f55a728.png?v=1767779398\"\u003e\u003c\/p\u003e\n\u003cp\u003eNote: The plugs are secured with clips. Make sure to release them before disconnecting the FPC cable.\u003c\/p\u003e\n\u003cp\u003ePosition 1:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/public-cdn.bblmw.com\/wiki\/new\/h2c\/maintenance\/replace-th-board\/extruder_connection_board-1.png\" alt=\"extruder_connection_board-1.png\"\u003e\u003c\/p\u003e\n\u003cp\u003ePosition 2:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/public-cdn.bblmw.com\/wiki\/new\/h2c\/maintenance\/replace-th-board\/extruder_connection_board-2.png\" alt=\"extruder_connection_board-2.png\"\u003e\u003c\/p\u003e\n\u003cp\u003ePosition 3:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/public-cdn.bblmw.com\/wiki\/new\/h2c\/maintenance\/replace-th-board\/extruder_connection_board-4.png\" alt=\"extruder_connection_board-4.png\"\u003e\u003c\/p\u003e\n\u003cp\u003eAfter disconnecting the plugs one by one, use an H1.5 hex wrench to remove the two screws and release the heating element power cable.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0759\/4531\/2569\/files\/ScreenShot_2026-01-08_155754_015_10478b37-b43b-4706-a493-76776c083736.png?v=1767859194\"\u003e\u003c\/p\u003e\n\u003cp\u003eRemove the two extruder connection board fixing screws (M1.6x4).\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0759\/4531\/2569\/files\/ScreenShot_2026-01-08_160021_859_51f18d89-902e-4a7a-b216-f222fcd51c2e.png?v=1767859272\"\u003e\u003c\/p\u003e\n\u003cp\u003eGently wiggle the extruder connection board near the 2004 motor plug switch, then carefully remove it.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"remove_extruder_connection_board.png\" src=\"https:\/\/public-cdn.bblmw.com\/wiki\/new\/h2c\/maintenance\/replace-th-board\/remove_extruder_connection_board.png\"\u003e\u003c\/p\u003e\n\u003ch3\u003eInstalling a New Extruder Connection Board\u003c\/h3\u003e\n\u003ch3\u003eStep 1: Install the Extruder Connection Board\u003c\/h3\u003e\n\u003cp\u003e1.Align the pins on the extruder connection board with the slots on the TH board, then mount it in place.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"image-58.png\" src=\"https:\/\/wiki.bambulab.com\/h2\/maintenance\/replace-h2d-th-board\/image-58.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e2.Tighten the two retaining screws (M1.6×4) using an H1.5 hex wrench.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"image-62.png\" src=\"https:\/\/wiki.bambulab.com\/h2\/maintenance\/replace-h2d-th-board\/image-62.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e3.All plugs are secured with clips. Insert each ribbon cable into its connector on the extruder connection board, then lock the clips once the cables are fully inserted.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/public-cdn.bblmw.com\/wiki\/new\/h2c\/maintenance\/replace-th-board\/16.png\" alt=\"16.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0759\/4531\/2569\/files\/ScreenShot_2026-01-08_160021_859_26ffb657-b997-463a-9b67-49d485852c36.png?v=1767859538\"\u003e\u003c\/p\u003e\n\u003ch3\u003eStep 2: Install Part Cooling Fan and Duct\u003c\/h3\u003e\n\u003cp\u003eYou can refer to the installation steps in this Wiki to install the part cooling fan and part\u003c\/p\u003e\n\u003cp\u003ecooling fan duct: Replacing the H2C Part Cooling Fan Guide.\u003c\/p\u003e\n\u003ch3\u003eVerifying Functionality\u003c\/h3\u003e\n\u003cp\u003eConnect the power supply, turn on the printer and initiate printing, then check if the print job can be successfully completed.\u003c\/p\u003e\n\u003cp\u003eIf you encounter any problems, please first go back through your steps and check all connections to try again. If the problem persists, please contact Bambu Lab technical support for further assistance.\u003c\/p\u003e\n\u003ch3\u003eScrews Involved\u003c\/h3\u003e\n\u003cp\u003eScrew types and quantities required for replacing the H2C extruder connection board, TH board, or FPC cable (keep the removed screws safe to avoid losing them):\u003c\/p\u003e\n\u003cp\u003eBT3x8x4pcs;\u003c\/p\u003e\n\u003cp\u003eST3x20x2pcs;\u003c\/p\u003e\n\u003cp\u003eBT2.6x8x2pcs;\u003c\/p\u003e\n\u003cp\u003eM1.6x4x2pcs;\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bambu Lab","offers":[{"title":"H2D and H2D Laser","offer_id":51661095731513,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true},{"title":"H2C and H2C Laser","offer_id":51661095764281,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/4531\/2569\/files\/Extruder_Connection_Board_-H2D_3ebaf7e9-b51c-4175-9fe5-8fa362c25c71.png?v=1767606334","url":"https:\/\/p3d.mx\/es\/products\/extruder-connection-board-h2d-h2c-for-bambu-lab-1","provider":"P3D","version":"1.0","type":"link"}