My burners ignite but no air comes out when the theromsat is set on Auto. Air blows when set on 'On' though. Help Please"

Not to worry Ray. Your blower works but isn't getting the message that the right temp has been reached so it doesn't know to turn on. I can not fix this without actually being there but I do have some good news for you. Turn your stat to ON raher than AUTO and leave it that way 24/7. You may think this uses more electrcity but it actually uses just a svery small amount more. Your home will be more comfortable and evenly heated. By the way, have you done anything like replace stat batteries or anything on the furnace lately?

If it's a newer system you have a bad control board. If it's the older system that used the fan/limit control that's your culprit.