After so many months, when I visit this system again,
I still have worries. There are so many things that can
go wrong. For example, when the air-con really fails, it
can drip water down to the power supply. Or when the
"wall" fails (as it is made of plasterboard) either when it
got wet from the air-con or someone puts weight on it...
We were not consulted when this room was built, OK?