Arrived on site to perform AC maintenance on 5 year old Lennox system. Cycled system for cooling. Checked indoor unit electrical and system components. Temperature split is in good range and system is cooling effectively. Filter is still ok, homeowner mentioned they will be ordering filter and replacing will be upgrading to a Merv 16. Checked damper for studio room to see if we can get more airflow to room but it is fully open already. Offered to increase fan speed but then the rest of the home would get more airflow, and homeowner would prefer not to. Checked outdoor unit electrical and system components. Primary motor control is in good condition and secondary motor control is still within range. Pulled off condenser fan motor and condenser panels and thoroughly washed out condenser coil inside and out. Cycled system. Reset thermostat back to homeowner setpoints. Renewed ESA maintenance program. System is fully operational upon departure.