This is a problem going a while back. I previously had an aircon which was a perfectly functional unit, except for a dying remote sensor, which made it very difficult to turn on/off. For some reason it was basically impossible to find a replacement sensor, so the only option was replacing the aircon itself.
So about 3 months ago, they replaced the entire aircon unit. Rather than a new unit, like I naively expected, it was clearly an ancient repurposed aircon covered in mold. Although it seemed to function fine at first, it quickly developed a water leak problem, and about 2 months ago it leaked water at a serious rate such that I had to stop using it. They cleaned the drainage pipe, and that seemed to fix it for some time, but today it began dripping a ton of water again.
This time, the landlord refuses to do anything, and claims it's a user problem, not his problem. He says I just need to "regularly clean it" and it will be no problem. Now, I know this is bullshit, because I do basic cleaning monthly, but I'm not an aircon technician obviously, and this problem NEVER occurred before they installed this garbage ancient unit. What are my options here?
UPDATE: After additional contact with the landlord, there seems to be an apartment-wide issue with water drainage, so we're waiting on someone who can fix that. I assume I will not have to pay for an apartment-wide problem, especially since I already pay a monthly fee for building maintenance.
by Branduil