I arrived at our clients home to preform a 2 system heat and cooling maintenance inspection. Our client had not receive a heating maintenance before the membership expired so I did both for both units today. The first main area unit is a gas furnace with a standard condenser. I tested the furnace to ensure the fire shutoff safeties were all working, they all passed inspection today. I also cleaned the flame sensor, pressure switch port and furnace cabinet. I found the filter for this unit to be dirty and our client did not have replacement 20*25*1 filters for me today. The blower wheel still has residual dust even after duct cleaning had been preformed. I proceeded outside to test condenser unit and found the capacitor to be near complete failure. This is subsequently causing the compressor to have extremely high start amps. It is actually exceeding the manufacture limit. I immediately showed this to our client and discussed replacing the capacitor and adding a compressor saver to ke