Bambu Lab TH Board
The Bambu Lab TH Board is a genuine Bambu Lab replacement part for the Bambu Lab A2L. A toolhead PCB that connects the hotend heater and thermistor, fans, sensors and toolhead electronics back to the mainboard. A damaged TH board shows up as a cluster of hotend temperature, fan and toolhead communication errors.
When to Replace
- Hotend temperature abnormal errors
- Toolhead fan faults
- Toolhead not detected or communication errors
- Multiple toolhead sensors failing at once
Compatible With
- A2L
![Bambu Lab Spare Parts TH Board - [A2L]](https://3dexpress.my/wp-content/uploads/2026/10/V1_Toolhead-Board-A2L-161.png)
![Bambu Lab Spare Parts TH Board - [A2L] - Image 2](https://3dexpress.my/wp-content/uploads/2026/10/V1_Toolhead-Board-A2L-162-600x600.png)
![Bambu Lab Spare Parts TH Board - [A2L] - Image 3](https://3dexpress.my/wp-content/uploads/2026/10/V1_Toolhead-Board-A2L-163-600x600.png)





