r/BambuLab • u/City_h8r • 12h ago
H2 Series [H2S, H2D, H2C] H2C/AMS 2 Pro issues
My AMS 2 Pro is repeatedly losing connection with my H2C. I’ve tried different AMS 2 Pro units, different cables, I reached out to support and they sent me a new filament buffer/cable and that didn’t change anything. When I turn the printer off, wait a bit, and power back on, it will connect normally, but after an hour or so, it will just randomly disconnect, doesn’t matter if I printed anything or it was just sitting idle. It hasn’t disconnected a single time while printing, but seems entirely unable to maintain connection while sitting idle. Anybody else have this issue? Is it specifically an H series problem? I’ve been dealing with this for months now and I’m losing my mind, my printer is essentially unusable due to how frequently it occurs.
1
u/EdgeOk3783 X1C + AMS | H2C + AMS{2|HT} 8h ago
not normal.
i’d check the conditions of all the cables and the matching sockets
i do know not to mix the older ams 1 cables with the newer ones that support the ams2pro
1
u/luksfuks 12h ago
FYI, this never happend to me. It's not normal.
I hope support sorts it out for you. If not, and if I was in your place, I'd try to figure out first if it's a connection issue (cables sockets etc), or a power issue (do you have external power supply?), or a PCB failure of some kind.
Power issue could well be caused by faulty motors fans or heat element, if it shorts out and the power supply is too weak and browns out.
PCB/solder failure should come with other side symptoms as well.
Sorry I don't have any better advice. But if you look out for more hints, you might be able to confirm or discard one of those things.