Cellar cooling problem

[Jenise]

The easiest way to detect a leak is by using a soapy water solution and looking for bubbles around joints etc., but that depends on accessibility of the bits you want to check. Might be worth taking a spray bottle of soapy water and giving a spray to whatever plumbing you can see and be on the lookout for bubbles. No need to pay excessive fees for that!

Leaks are most often found in the finned tubing. The pros have electronic leak detectors that can narrow it down pretty quickly.

So once the leak is found, seal it with the appropriate tape?

Btw, who I hired was a major local plumbing/heating/AC company, not just some dude off the street. They know what they're doing but not used to tending little units like mine. Finding the actual leak wasn't in their wheelhouse. Probably be better off with a car mechanic. Not sure how to find someone to not pay excessive fees to.