Initially upon arrival cycled cooling and could not get unit to recreate the noises homeowner was experiencing. He had videos and I did hear the odd noises but I could not recreate them. Ecm motor has small growl/hum to it as it’s starting/stopping noise is possibly motor beginning to fail. Gas heating preventative maintenance performed Check filter - 16x25x1 clean Clean flame sensor Ohm test igniter: 56ohms Inspect wiring for loose connections and/or hot spots - none found Check humidifier pad: n/a Inspect exhaust flu - no major concerns, minor rot to piping Set thermostat for heat Check amp draw on blower motor: 2.3 Check amp draw on inducer motor:1.32 Check delta T - 40° Furnace is in optimal running conditions