Performed no heat diagnostic for whole home. 20 year old system was r-22 and was converted to 407 refrigerant also has leak seal injected into unit.system has 2 zones with no Te flood protection. Dirty blower wheel. Out of tolerance capacitor. Drain-line has no pitch to drain and drain line isn't inside drain pan. Inspected heat exchanger with camera and found pin holes in heat exchanger. Has short bypass.Failing gas valve. Dirty condenser coil. Pitted contacter. Recommend replacing system due to age of system and repairs. Based on our findings today, it might be time to think about getting a brand new system.