Inside of a Lennox Pulse furnace, for those who've never seen one. (the ignitor and flame sensor are accessed through the tiny rectangular panel below the ignition board) : r/HVAC
You can hear your furnace click on but it does not fire up? - Furnace and Air Conditioner Repair Mississauga
I have a Lennox G2104/5-100-3 natural gas furnace. About a week ago my wife started smelling gas in the house
carrier furnace refuses to hold temp in house. thermostat will kick on furnace it will ignite and fire up and blow hot air for a few min then turn off. never reaching
Lennox G43 G51 Furnace Fault Codes - YouTube
Where. Your furnace (lennox elite series G24M4/5-1405-12 ). The first blower starts up then there is a few relay clicks