Inducer motor is ready to fail any minute, this will stop the furnace from heating at all Getting 1ppm carbon monoxide off the front of the furnace and intermittently around the house on the first floor Considering age of the furnace and AC, cost of repairs required and the fact it's putting off carbon monoxide, strongly recommend system replacement. 2002 Lennox 100kbtu 21" wide 90% furnace 3" intake and exhaust solid core PVC 3.5 ton AC 15' line set 10x24 return drop (2) 8x20 supply trunks 20x25x1 Filter rack 5-conductor thermostat wire to the stat, easy to pull new wire, roughly 20' of wire
