2/16/26 Found the system completely out of refrigerant. Customer said he heard hissing from the upstairs bedroom high wall hung indoor unit. I pressurized with 350lbs of nitrogen and confirmed that coil was leaking. 2/17/26 We replaced that indoor unit with a new one the next day, pressuring it to 350 lbs again of nitrogen, then pulling down on a deep vacuum to 318 microns, then recharging with 4.41lbs of r-32 refrigerant and then fired the system off. The unit is now cooling properly at this time. No charge as this unit was installed earlier this month. New model serial Rnx07amd 0m4wpdby100400n