Well after some good suggestions I went out and removed some panels inside and definitely noted that there was one air duct hose that had a tight “S” curve in it then connected to an air duct in the floor that ran over to the other side to heat hallway and bathroom so I cut a little over 2 feet out and reconnected the duct and WALA problem solved. Thanks so much for all the input. It looks like there was just to much of a curve in the Duck work, it was crammed under the kitchen cabinet & sink. Apparently the restrictions were causing excessive heat to build up and the the limit switch would shut it down.
Thanks again