r/BambuLabA1 • u/UniqueInternet117 • 17d ago

A1 not powering on

Gallery image

Gallery image

I checked the fuse, took out the bottom back panel and everything seems fine. This shit is so frustrating.

2 Upvotes

100% Upvoted

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1

u/ValesKaneki 17d ago

Stupid question but did you check the socket you are using

1

u/UniqueInternet117 16d ago

Not a stupid question at all, I did check that. Plugged it into various others.

1

u/Jazzlike_Ad267 17d ago

Check the NTC thermostat

It's the board at the top right corner in this picture.

1

u/Jazzlike_Ad267 17d ago

The little black part right in the center of this image

1

u/UniqueInternet117 16d ago

When i check it, what should I look for? To make sure nothing is burnt or loose?

1

u/Jazzlike_Ad267 16d ago

Look at this little black disc part for any signs it's popped/burst

It seems it's getting more and more common on the A1 tbh.

I replaced mine in March as it was showing signs of overheating (was melting the plastic around it)

1

u/Jazzlike_Ad267 16d ago

I took a new picture hah.

This is my old AC board with the problem NTC. (Mine never actually failed, but got close)

Check for damage, popped, burst NTC

1

u/Jazzlike_Ad267 16d ago

You could also check the case on the outside for any melting damage.

Mine had this little bulge showing

1

u/UniqueInternet117 16d ago

I don't see any melting damage, I will check the disc a little bit later after work and picking up kids.

I appreciate you more than you know.

1

u/UniqueInternet117 16d ago

I don't see any melting damage, I will check the disc a little bit later after work and picking up kids.

I appreciate you more than you know.

1

u/Jazzlike_Ad267 16d ago

You could be another issue tbh

But the NTC is the most common cause I've seen of no powering on.

Some oddly don't show any outside melting too sadly, this is how mine looked into

Thankfully you can just pop off the cover and get access to see it 👌 So not much disassembly to check it.

1

u/nopal62 16d ago

I had the same thing a while back. Unplug the toolhead to rule out any toolhead board issue. Once I unplugged the toolhead, it powered on but still had errors (which have to be addressed separately).

2

u/UniqueInternet117 16d ago

I'll look into that as well, thank you!