Customer stated that unit stop producing cold air yesterday or the day before, so they shut off the unit. Upon arrival I checked standing pressure on unit and it appeared to be low. Tested capacitor and contactor both were testing within range. Proceding to the attic unit, I found the drain line to be draining sufficiently and the float switch not triggered. Upon inspecting further I noticed I could hear hissing coming from the evaporator. I then conducted a leak test and didn’t not find any leaks around the TXV or connections with a bubble test. On my leak detector I was immediately getting hits of refrigerant around the bottom left side of coil. Discussed with customer that the coil was in stock but our install team would not be available until Saturday morning. Offered window unit to hold them over until we could come out to repair the leak and home owner accepted. 26907505 Order number Trane McKinney in stock