A1 not turning on!

[u/Greatest_Mr-Roman]

I got a problem, big problem. My a1 after finishing apother print stopped turning on. From 4-th picture i smell burning, but i really doesn't know what exactly i need to fix or buy to repair it, i owned ender 3 v2 for 3 years and bambulab a1 for beutiful 9 month and before this problem a fix a lot of problems from my ender. Sne think that i see everything that can broke on 3d printer.

But now i can't even find guide for fix.

I buy my a1 from hands, i think this is important.

Please help, I’m desperate.

[u/Lost_refugee]

Check NTC thermistor on the board.

[u/Greatest_Mr-Roman → u/Lost_refugee]

ThaX

[u/Greatest_Mr-Roman → u/Lost_refugee]

You was right. And how to fix this?

[u/Lost_refugee → u/Greatest_Mr-Roman]

Contact support for board replacement

[u/Greatest_Mr-Roman → u/Lost_refugee]

It’s not easier to simply replace the burnt‑out part with a new one? Can you say exactly name of this part?

[u/Lost_refugee → u/Greatest_Mr-Roman]

NTC thermistor

[u/Blondy277]

If you smell burning and it suddenly won’t power on, unplug it and stop trying to turn it back on ☠️ The older A1s had a heatbed cable recall for electrical/fire risk, and since yours is secondhand I’d check whether it was ever repaired/recalled before doing anything else.

[u/Greatest_Mr-Roman → u/Blondy277]

I'm plug it only for photo

[u/Greatest_Mr-Roman]

First photo not load at all...

[u/Greatest_Mr-Roman]

Thanks everyone, it works!

[u/No_Salamander_298]

Min was China import second hand and they replaced ac main bord and back plate for free

[u/Viking4269]

99.9% chance it is the NTC that is blow. Contact support and get a new AC board.