I have a Natural Gas Jotul Allagash stove. The burner kept going out - now I can't even get it lit. since I replaced the Thermapile/Thermacopler pilot assembly. My problem didn't go away. The burner still won't light. Any suggestions? The place where I purchased the stove (About 6 years ago). Told me to try cleaning the gas burner - maybe the tube is dirtly. Being that the unit was operating fine up to two nights ago - if it was all of a sudden dirty with spider webs, etc. wouldn't the stove have to be off for a while? Also - do I need to remove the tube to clean it or can I some how run pipe cleaners through it while still in the unit? Any help would be greatly appreciated.