Just for trial and error , I can order the sensor seperate for $13.00 so I am going to give that a try first....the oil tank is $113 to replace so I will go cheap first and see what happens, the sensor comes out from the tank with 1 screw , but if the sensor is looking for the "float" then that might be the ultimate problem......will let you know...... I am sure others have the same issue at some point or another.......
thanks again for the information......