Arrived to do performance maintenance. Turned on air conditioning system at the thermostat. Started inspection at the furnace. Measured power consumption and measured the temperature split. Flushed condensation drain line. Checked blower for cleanliness and to see if there is any play in the bearings. Found that the blower is coated in dust and debris. Checked system air filter and replaced it. Spoke with homeowner about the importance of changing the filter more frequently. Moved inspection outside and checked the coil for cleanliness and excessive vibration. Found that the condenser coil was heavily coated in dust and debris. Measured power consumption of the compressor and condenser fan motors. Verified operation of all mechanical and electronic components. Found that the capacitor was performing outside factory specifications. Verified system refrigerant charge. With homeowners approval replaced the failing capacitor and performed a blower cleaning and an extensive coil cleaning. T