Just spreading the word, there has been a Recall concerning BambuLab Ai printers. It does not affect the A1 Mini.
The part specifically is the heatbed cable, if there are signs of damage they are offering a replacement, if there are no signs of damage, they give some simple tips to prevent the issue, including a printable cable-protector.
More details in the link above,atBambuLab's blog post about the issue.