Finding a Refrigerant leak in an A/C system. 

Good find Charles amazing how something as simple as a pressure switch can cause a leak but a lot of newer younger techs would just say get a new system over a, pressure switch or assume it's a condenser coil or evap coil just like with cars they would assume it's a big expensive part when it's not. Good work and I hope you do a follow up video on replacing that switch and valve core and at least your leak detector works and is calibrated corectly.

Did you grab your sweeper brush before you pulled up?

I like the way you wear your gloves 😂 they sure are not to keep dirt off your fingers

Good videos 😊

Old reliable !!

With the H-10 hope that the pump never goes ou, because the manufacture does not have them. They use to be great detectors 40 plus years ago but I would not buy one today.