System is not cooling due to it being low on r22 refrigerant causing the system to freeze up. Evaporator is rusted out, blower wheel is dirty, blower motor bearings are worn out, run capacitor is out of manufacture specs, no water safeties on system, insulation is poor, no locking caps on system, low on r22 refrigerant, and condenser coil is dirty. Recommend replacing system due to the refrigerant being banned and parts for system not being available anymore.