Gas heating preventative maintenance performed Check filter - wash cleane effects Clean flame sensor Ohm test igniter: 0.80 Inspect wiring for loose connections and/or hot spots - none found Check humidifier pad: ok - shop vac calcium buildup due to out of stock of #10 panels Inspect exhaust flu - no concerns Set thermostat for heat Check amp draw on blower motor: 3.25 Check amp draw on inducer motor: 0.76 - motor slightly louder than average. Advised homeowner of potential future failure Check delta T - 56° Furnace is in optimal running conditions