Tech arrived to no cooling call for entire home. System is approximately 7 years old located in attic servicing all 3 levels (zoned) in home. Customer expressed system was not cooling at all. Inspected system. Found system fully operational inside and out. Water protection was inadequate. System was low on refrigerant. Noticed capacitor was also out of specs. Did visual check for refrigerant leak and found valve core at indoor coil to have oil all over line and on suction line. Ran leak detector and only found hits at valve core. Verified zoning was operational. Brought recommendations to customer. Customer agreed to join HomeCare maintenance program, replace capacitor, add water protection to system, and fix refrigerant issue. Tech added water protection to system, and verified safety operations. Replaced valve core and added new cap to port. Put system into full call for cool and went outside. Replaced 45/5 capacitor and recharged system with R410A with roughly 4 pounds of R410A. S