Tech out for no cooling. Customer spoke with me about system not last year had another company come out added 3 pounds of refrigerant. And that there could be a possible leak in the system. tech checked system and noticed the following. Only system in home. Capacitor on indoor system is weak . Blower motor is over amping in start up. Blower wheel is dirty and would need to be cleaned. There is no safety switch on the evaporator coil. There is a float switch, ( safe guard ) . In drain pan but only detects water when drain pan is full of water that recommend a wet switch and drain pan. Flue pipe single wall this would need to be double wall due to the rust inside the single wall. There is no switch to turn off system at the furnace. Also compressor amps fluctuating between 14 and 12 indicating that the compressor is failing. Outdoor disconnect will need to be replaced due to a fuse disconnect. Outdoor condenser needs a chemical cleaning. Tech checked indoor evaporator coil. To verif