Performed routine maintenance inspection on 3 systems. Basement has 40 y/o Lennox heat pump system that has completely failed compressor. R22 refrigerant non-existent. Upper level has 2 y/o Rheem furnace matched with 14 y/o Goodman AC that has declining R22 refrigerant. System has bad dual capacitor. Bad contactor. Dirty condenser coils. Compressor is reading high amperage. Recommend replacement of AC for upper level. Based on our findings today, it might be time to think about getting a brand new system. Customer has 7 y/o Lennox system that operates for main level that was not cooling due to failed condensate drain pump shutting system down. Replaced condensate drain pump. Replaced 20x25x5 media filter. Performed condenser coil cleaning as well. Pressure levels were normal for main level. Water protection for all 3 systems was poor. Informed customer of all findings.