I watched many you tube videos, read my owners manual, and scoured every thread on these air forums and other websites too. I have always believed my problem was the thermostat. So after determining I was going to have to go the the professionals and foot a heavy repair bill, I decided to run a fingernail across the thermostat contacts that are controlled by the on off switch and the temperature setting. Once I did that the furnace system functioned fine. In the investigation process I did examine my burner when lit through the inspection hole and it looked very good.
So I want to thank the contributors and my message is before you start taking things apart with the idea of checking the board or the sail switch take a look at your thermostat contacts and think about whether there is not a good connection due to build up and thus reduced or no connectivity.
So when do I get another rivet?
Thanks to all who replied. I am going to check the furnace again, but I have checked it 3 times since and its working fine. So I will check again tonight and in the morning too. Getting ready for some cool weather camping.