Gas heating preventative maintenance performed low-fire Check filter - 20x25x4 new today Clean flame sensor Inspect burners - clean no concerns Ohm test igniter: 56.4 Inspect wiring for loose connections and/or hot spots - none found Check humidifier pad: new today #35 truck stock Inspect exhaust flu - no concerns Set thermostat for heat Check amp draw on blower motor: 4.20 Check amp draw on inducer motor:0.24 Check delta T - 58° Furnace is in optimal running conditions