For this job, I completed a two system homecare maintenance. I tested the unit in heat and cool to ensure that everything was working. I cleaned the flame sensor, inspected the blower wheel and burners. I cleared the drain lines with 2 gallons of water and vinegar. I then proceeded to inspect the outdoor units to measure all its electrical components. Everything is working as it should at the moment . I did create an estimate regarding IAQ if it’s something the customer is ever interested in . The customers filter size are as follows: Upstairs = 2 April aire 410/413 Main floor = 1 April aire 410/413