Room A/C spitting out chunks of black--dirt??

I should add, they sell anti=bacterial pads you can put in the drain pan to help in the future. Amazon, about 10 bucks.

Ed probably knows more about this, but I woudl have thought it was the foam filter coming apart. OTOH, if it s 4tarted in the 2nd year, another reason to think Ed is right.

I myself would not bother a landlord about little things like this (unless nothing fixed it and I couldn't use the AC), or expect him to pay the $10. It was partly this behaviour (never calling him) with my landlord of 6 or more years, partly that I didn't call him at home and certainly not at night, that even though I went on personal rent strike twice and he had to take me to court both times, and even though it was a draw once and I won iirc $150 one of those time, he was still willing when he was paying me to leave to pay me before I actually left. So that his assistent, who often handled things in court, told him not to pay me before I'd left, and the landlord's reply to that was "You can trust Micky."

For various reasons, I thought he was a jerk (and that's the nicest word I can think of), but I treated him politely anyhow.