Called out today due to concerns of a component in the condenser corroding. Upon arrival client showed me the compressor blanket that has a hole in it due to old age and sunlight. I assured the client that the blanket has no mechanical operation and would not cause an issue to the ac. She hasn’t had preventive maintenance performed in over a year. I checked all electronics and motor components to ensure equipment is operating properly. Checked filter. Filter is heavily impacted and she is going to buy more. Measured the temperature drop across the coil. Outside I checked refrigerant pressures. Tested capacitor. Took amp draws. This machine is 10 years old coming towards the end of it’s expected lifespan. I made her aware that although the machine is operating properly now, components can and will fail due to age. Gave options for preventative maintenance plans. Enrolled the central unit into the maintenance agreement. She has an additional mini split in a back room but it