Arrived to do a two system performance maintenance. Set each system for cooling. Measured each systems static pressure and measured a temperature split between return and supply air. Checked interior of the furnace and air handler for cleanliness. Went outside and verified refrigerant levels. Verified operation of all electronic and mechanical components. Cleared the fault code for the dirty coil on the main floor system. Rinsed coils free of debris. Called to speak with the homeowner about the systems. Air conditioning systems are operational at this time.