Hey, just got registered, courtesy of Tado. I'm currently looking to get a Beat via the auctions here in Japan.

Most of the options open to me seem to have problems with the A/C system. Is there a common fault that I can expect to find if I have to go that route, or do they kind of fail in different places every time?
While I'm at it, are there any other common problems I should be looking out for?

Thanks, everyone!