I just installed a new therocoupler on my Coleman 7900 series Presidential III direct vent forced air gas furnace. The pilot light keeps going out after it has lit and burned several times. I have checked the air on the burner and am wondering if the flue has anything to do with it not relighting. Problem has happened both when windy and when calm.
Any help you can give me will be appreciated. Thank you.

What is the exact model number on the tag on the inside of the furnace. I do not show a 7900 series with a thermocouple? Anything is possible. Is this unit in a mobile home or manufactured home?