But I do think that you do have a good chance to get a full refund. But … it takes time and nerves.
From what I gathered, you seem to have been well within the warranty period when you filed your first ticket? That is all that matters! If that problem still exists now despite actions taken at the direction of Bambu Support, you can quite simply state the fault to still exist and demand a full refund upon return of the printer.
In my experience, there are a few things that matter on this road:
Desipte everything and although difficult and painful: Be polite. Whoever is on the other side is (ideally) also human.
You should also be clear and spell it out that you just want to return the printer for a refund. Exactly that and nothing else.
Reinforce the need: In my case, and it may have just been coincidence, the cork came out of the bottle when I wrote a review on TrustPilot. The forum post I made was apparently not enough. If you have some pic’s of the chips you found in the extruder and that foil and post them with your review…
Man I really feel for you. I was terrified of receiving a lemon because I read about too many people having it happen to them. Dealing with support is hard and a slow crawl. Every time you send a message you have to wait days for a response.
I’m dealing right now with an ams that at only 35 days old the dryer heater stopped working and just blows cold error while giving an error that the sensor found that the heater is abnormal. Support sent me a new heater which was easy to install but it changed nothing. The heater is still blowing cold air. I sent them photos I took of the installation and reported back that it is still not working. It’s been 6 days without a response.
I love my Bambu printers, even my H2D. I have already had AMS 2 Pro replaced, and I should get my AMS Lite replaced. I have done all they have asked me to do. But you get to a certain point and just replace it. In the UK you get 30 days to get a replacement. But I am not and never will be a full-on fanboy, lol.
Hope you get sorted soon, mate. Did you pay by credit card? You could do a chargeback like we can in the UK. Before you go the lawyer route.
I wonder what would cause the same code to behave so differently. I assume there isn’t an issue with the location of the printer? Meaning a wobbly table? I doubt it…
Is it possible to start replacing parts that could have effects like you are mentioning? All of the rails, print head, stuff like that? Might be throwing away more money.
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