Arrived at customers residence and was greeted by customer and was led to the thermostat and put it in heat mode and thermostat is functioning properly at this time. Inspected 16x25x1 filter and it is clean at this time. Refrigerant lines are tight and neat and,Arma flex insulation is intact and without any visible defects at this time.inspected 4” metal flue pipe and it is tight and neat to the furnace at this time.inspected gas line and manual gas shut off valve. Inspected evaporator coil and it is clean at this time. Inspected tape and duct work joints and they are tight and without any visible air leaks at this time.Inspected ez trap safety switch and it is operating normally at this time. Inspected manual dampers and they’re functioning properly at this time. Inspected condensate drain and it is clear at this time.inspected flame sensor and it is clean at this time.Ignitor is functioning properly at this time. Electrical connections are tight and neat to the components and wire