A2 stank. Like, really fucking stank and needed to get cleaned and repaired. 2B tried absolutely everything from trapping her in a water filled room to tossing her straight into the ocean, but to no avail, A2 would avoid actually getting clean like the plague.
Finally 2B had enough and locked herself and A2 into some steel unit with only a makeshift tub of water.
A2 stayed on the ceiling for the next 3 years until her arms crumbled and she finally fell in the spring water.