H2D troubleshooting multiple system failures

Bambu Lab H2 Series Troubleshooting
1

Hello,
My printer has a major failure, it started two days ago during a print with Chamber temperature malfunction [0300-8018-202919] regarding the heat bed, it said a circuit board may have failed and to reset the device. After I reset the device many more errors arose.

  1. The Toolhead is malfunctioning
  2. The Filament Buffer Module is malfunctioning
  3. The MC motor controller module is malfunctioning
  4. The Toolhead expansion module is malfunctioning
  5. Airflow System Failed to activate cooling mode.
  6. Automatic Top vent air door malfunction
  7. The nozzle Camera is not in place.
    Nothing can be adjusted through the touchpad. I am not able to heat up or move the print heads, or adjust the bed. The lights, display and I hear a cooling fan turn on but nothing else will work. I opened a ticket, but have not heard back as of yet. Any suggestions on further trouble shooting would help. Since it is across the board everything I am guessing a connector somewhere or a control board.
2

you should contact with Bambu support instead of asking here. it’s clearly not something simple.

3

I did send in a ticket, but it takes a few days for them to reply. Just checking all my boxes before they get back to me. If someone seen a similar issue and it is a simple connector that came loose that would be great.

2 Likes
4

I think it’s dead. Probably the main board. Hopefully you can get a full replacement.

2 Likes
5

Try to unplug the AMS (turn off printer), had a similar thing, turned out the AMS-connector was not properly attached and gave a lot of error-messages. Without the AMS connected the messages disapeared.

6

No luck, still the same errors. Thank you for the suggestion, I was hopeful b/c the AMS doesn’t power up at all. Tech support had me check P17 on the MB and the associated cable for damage, then to unplug it to see if it changed anything. The same errors remained and it didn’t even recognize the new fault introduced with unplugging it.

7

This literally happened to me today. I think the motherboard on my H2D failed…..

I contacted support.

8

that’s likely a loose connection or dead MC board.

9

It is possible for the boards to overheat. I agree that it sounds like the Mainboard has died.

10

Same thing happened to me with brand new out of box H2D printer MC module failure. My question is what does support do? And how long does it take for them to answer after ticket?

11

They have always gotten back to me in a work day. Replacement parts, if in US stock, ship to me in 4 or 5 days.

12

What ever came of this? Did you end up getting things fixed? What parts were needed?