My Trane central heat is blowing cold air and showing the error code for a
defective high temp limit switch. I pulled the old one out and sure enough the
sensor on the end is completely corroded away. After an hour of searching I
failed to locate a THT02440 switch. Can Trane parts be this hard to find? The
switches I found were out of stock. The switch I need is upper temperature 180,
lower 150. If I can find another model with a different temperature rating,
could I use it?