Performed clean and check on gas furnace and ac started furnace tested and inspected all electrical components and controls cleaned flame sensor and condensate trap performed combustion analysis on system attempted to start humidfier however humidfier is no longer functional due to a bad humidistat and a clogged solenoid valve which I reccomend be replaced. Inspected combustion piping on their report it was noted that the air intake is not ran outside which is not necessary due to the size of the furnace the square foot of the space and the water heater being electric so no other combustion air is used in the space will send customer clarification from the manufacturer. Started ac checked temp drop and charge tested and inspected all electrical components and controls removed debris from ac coil and cleaned all operations are normal at this time.