Unable to finish tune up due to height of air handler. Need to come back with 10 foot ladder to complete. Cleaned condensing unit and drain line. 2/24/22 showed up with 10 ft ladder and nobody was home. Knocked several times and called and left a voicemail. Waited ten minutes with no response. Rescheduling call. 3/1/22 finished up tune up. Cleaned indoor coil, treated drain pan and drain line with antimicrobial agent, ran and tested system, which is cooling and draining fine.