Hi guys! My furnace throws code 33 find that my high limit switch bad, but not just bad it is a wrong part. 1- it's L250-40 which is way to much 2- it's cheated by adding a resistor to on of the connectors I need to replace it, by I don't know the right part number the furnace is Bryanr 383kav024070 , its a 80% unit with air temp. rise 40 -70 and max air temp outlet of - 185 (deg. F) I'm assuming that it has to be something between L160-40 to 180/185-40 but i don't know the length , is it 1.5 2 or 3 inches