I have lit the stove and furnace to purge the gas lines. Tried to light with push button igniter for about 5 minutes while clicking the piezo igniter every 10 seconds. I took apart the gas nozzle burner to look for nests and other obstructions but it was clean. I tried holding a lit butane lighter in the pilot light area for 2 minutes while the fridge was on gas with no luck. What else should I look at? Thanks.