Air conditioner not cooling and making rattling noises

[Pink Jazz]

Originally Posted by DubyaM

"Yep" isn't much of an answer. A loss of refrigerant means a loss of cooling and you will eventually notice this. If you see a heavy "frostback" on the tubing at the outside unit this usually indicates a low air flow situation at the evaporator inside. I'd have to hear this rattling noise.

Airflow was actually the first thing that the tech checked, and he said that likely wasn't the issue. When he started to check for leaks afterward, I heard his electronic leak detector making noises that apparently would indicate a leak.

[Pink Jazz]

FYI, another tech came this morning, and he discovered that in addition to the coil leak, the compressor was also bad. I presume that was the cause of our rattling noises on our outside unit. Both the N-coil and the compressor have been replaced, and hopefully we don't have any more problems.

[Pink Jazz]

Well, our AC is all fixed. Apparently there was a kink in one of our ducts caused by a rod underneath it, thus reducing airflow. The kink has since been repaired, plus a little more R410A was added into our system.