Performed inspection and maintenance on one crawlspace and one attic furnace unit. Changed both filters and treated drain lines and condensation pumps. Inspected capacitors, pressure switch tubes and orifices. Inspected flame sensors and igniters. Performed functionality check on both units. Checked blower and exhaust fan amperages. Checked burners. Checked for leaks in supply. Checked for leaks in flue pipes. All measurements taken are within specifications. Both units are functioning normally at this time. Customer has opted to sign up for the monthly membership program at this time. One of the returns came off for the middle live for the upstairs system that was part of the reason why the system was not working properly