I have a relatively new Rheem air handler (RHKL-HM4821 11 months old). Beginning in early August, it started to leak a small amount of water (about 1 tablespoon of water a day). The leak only occurs in the evening and is dry by the morning.
The leak initially came from two sources. One was from the vapor line, which had tears in the insulation where the plastic binders cut into the insulation. The second was from inside the air handler at the seam where the metal sections of the air handler meet just below the vapor line.
On Friday, the installation company came out and put tape around the insulation and around the seams of the air handler. This did stop the leak that came directly from the insulation tears. However, it is still leaking from the bottom of the air handler where the metal sections of the cabinet meet below the vapor link (again only about a tablespoon of water in the evening and is dry by morning).
The installation company tech said that there was a small clog in the drain line, which he said he fixed. However, the leak is the exact same amount it was before he cleared the drain line.
The air handler is located in an unconditioned garage, so is it possible that the leak is arising due to sweating?
Is this small leak normal when the heat index is regularly above 105 in the afternoon? Or is this something abnormal that needs to be fixed?
Thanks in advance for the suggestions.