During today’s visit, performed inspection and maintenance on one attic air handler, and one outdoor heat pump unit. Changed 20 x 20 x 1 filter. inspected ductwork for leaks. Inspected operation of zone dampers. Inspected overall cleanliness of the blower and coil compartments. Inspected operation of auxiliary Heat strips. Inspected blower amp draw. inspected temperature Heat rise in heat mode. Inspected outdoor heat pump unit electrical components. System is functioning normally at this time, and all measurements are within specifications for the system.