SERVICE CALL: upon arrival homeowner stated the hvac system is not Cooling properly the house. After complete troubleshooting I found the 12 inches metal collar is broken completely from the fiberglass supply plenum that part of ductwork is metal and flexible union is extremely heavy And the fiberglass plenums can’t hold that weight . Test gas furnace amana Is ok is 2 years old no extra safety switches to prevent water damage. Test outdoor condenser unit Rheem 3 ton capacity 18 years old r 22 refrigerant type which is no longer available test condenser is in poor maintenance conditions the condenser coil is highly impacted plus refrigerant pressures are low and this condition will ice up the system and Can create water damage inside the house. Ac and coil already past life expectancy from manufacture which are 10 to 12 years . Due to aged and Conditions of the equipment I recommend to upgrade AC AND COIL PLUS NEW METAL PLENUMS AND SAFETY SWITCHES AND REPAIR DUCTWORK TO RES