Arrived on site to perform spring tune up on a 1997 carrier unit. Client stated no issues as he barely uses unit or Ac. Cycled system and operational. Washed condenser coil Inside and out. Client has been doing repairs over time. As he replaced secondary motor control and added a compressor booster kit. Fan motor is original to system and home and is leaking oil and pulling max amps. Could fail at any time. Primary starter is original and has worn out contact points. Recommend replacing. Checked pressure and are good as unit uses R-22 refrigerant and is no longer I. Production. Inspected indoor unit. Found filter to be hog hair filter but is clean. Blower compartment has build up. Secondary motor control is going weak as it’s boarder line and will go weak over time and fail. Drain lines are dirty. No drain pan under evaporator coil or system. Drain lines don’t have any over flow safety switches to prevent overflow especially since there is no pan. System is cooling at 19 degrees.