NO AC - First Floor Unit - UNICO in Crawl Space /TRANE Condenser - Upon arrival client mentioned that system has been cooling for a few weeks after repair but doesn’t seem to be dropping temperature in home. On previous I mentioned that system pressures could be increased. Checked R410A refrigerant pressures low, System is about 4 years old. Explained to client that this means there is potentially a leak in system and must be addressed. Recommend Isolation Nitrogen Test/Dye Test, client approved the work for Adding Refrigerant & Dye. Explained to client that we will need to return to trace UV Dye in System. Added over 2lbs of R410, Checked delta T receiving good temperature split, 45F from Supply. Inspected ductwork ok, noticed blower wheel is extremely dirty and should Also be cleaned. System is currently operational and cooling well at this time, checked supply registers in home as well. Must return to trace leak. Follow Up Action: Return Visit for Leak Search. Reviewed work complete