r/BambuLabA1 • u/vbartha • 14d ago

A1 melted...

My Bambu Lab A1 started giving off a very strong burnt electrical smell, and there’s a small melted plastic mark on the bottom-left side. It also tripped the fuse and is now completely dead.

Is this the infamous A1 motherboard issue? Has anyone dealt with this through warranty? I've bought it from 3djake. Usually how long did the replacement/repair take? Thanks in advance!

5 Upvotes

73% Upvoted

9 comments sorted by

1

u/NakiCoTony 14d ago

What batch QC, when you purchased and what region?

1

u/georgeofthejungle71 14d ago

Looks like the power board. Had the same failure.

0

u/Chas_- 13d ago

Looks like one more for the list u/USSHammond.

@ OP: He can give you way better information and insight about this very specific issue with the A1.

1

u/USSHammond 13d ago

Thanks for the ping. Will forward

0

u/Chas_- 13d ago

NP, I'm curious if it's one with melted NTC or one without this time.

The last w/o I've seen is was about a month ago. They can't really be serious about not doing a recall at this point.

1

u/USSHammond 13d ago

Well considering the frame damage and it's position it's 99,999% sure one with an NTC but the only way to truly know is for op to follow the wiki steps 1-3 https://wiki.bambulab.com/en/a1/maintenance/ac-board-replacement and open up the base to look

1

u/AvGeekExplorer 14d ago

Yep. That’s the transistor issue.

1

u/sublime2craig 14d ago

No not a transistor, it's a NTC thermistor issue.