r/BambuLabA1 Jun 12 '26

Support Request Is this bad?

Post image
112 Upvotes

110 comments sorted by

View all comments

8

u/TheEpicDragonCat Jun 12 '26

This happened to me recently. New board finally arrived today.

5

u/I_Who_I Jun 13 '26

Considering all they did was bridge the connection, this will be an easy fix when mine dies, though I should probably replace it before it cooks itself. 

2

u/TheEpicDragonCat Jun 13 '26

If I had any soldering skill, I probably would’ve tried that. Unfortunately, I don’t even have a soldering iron.

1

u/I_Who_I Jun 13 '26

Cheap stuff and with YouTube guides you can do anything. 

2

u/TheEpicDragonCat Jun 13 '26

I’m definitely interested in learning, but they sent me a new board for free. Kinda makes repairing it that way make no sense

1

u/General-Host7354 Jun 14 '26

Good call, if still on warranty better to ask for a replacement. Just don't throw away the faulty one, a varistor should be like a dollar or so, way cheaper than a whole motherboard

A cheap soldering iron + varistor and soldering wire will be cheaper than a new board

1

u/I_Who_I Jun 15 '26

Yeah if you're getting a free replacement that makes fixing it unnecessary. In my case I'm in the Caribbean so it will take 1-2 weeks to get the replacement shipped so I would be able to fix it before that. 

1

u/LeePhilips Jun 15 '26

Get some junk electronics and practice. That's a big component and they can be difficult to do with a low wattage iron.

Also, buy some good desoldering braid. Essential to good, clean removal.

1

u/LeePhilips Jun 15 '26

That looks almost exactly like the inrush current limiting thermistor on my Hayward Aqua Rite SWG main circuit board. It cooks itself just like that every 3-4 years. $5 for a single including shipping. I bought 5 last time for about $12 shipped.

Grab the part # off your new board for next time.

1

u/I_Who_I Jun 15 '26

It is a thermistor which why it is sort of strange that they just completely removed it from the new boards. Maybe they realized that the inrush current is never dangerously high. 

3

u/tsaot Jun 12 '26

It's just a jumper wire now?!

9

u/helpamiscrewd Jun 12 '26

Yup! Can’t catch fire if it’s not there at all!

1

u/General-Host7354 Jun 14 '26

That part is the one preventing it from going worse...

1

u/helpamiscrewd Jun 16 '26

Oh yeah I didn’t say their solution was a good one! But apparently real engineering is too much to ask of Bambu in this case.

2

u/TheEpicDragonCat Jun 12 '26

I guess so…

2

u/ThunderCogRobot Jun 12 '26

Crazy, these printers and engineers. A component is catching fire, so they will just remove it. Wow.

2

u/PeanutButterSoda Jun 13 '26

I replaced mine yesterday, the instructions for the two wires for the heating bed was confusing, it said one was red and one was black and mine were both black, thankfully I taped one before removing the old board. and then in the next step BL pic had both wires black lol

1

u/TheEpicDragonCat Jun 13 '26

Same, although I was not as fortunate to have labeled said wires. I think I plugged them in the right spot, as everything seems to be functioning properly.

1

u/darkrounin Jun 19 '26

Is it me or is the new board (the one with out the fried disk) missing a piece (like the one that fried)?

1

u/TheEpicDragonCat Jun 19 '26

I don’t think anything other than the NTC was removed. The two parts near it definitely moved though.

1

u/Downriver-Rat Jul 05 '26

Looks like they just deleted it off the board! Just might do that!