Faw 55 no fan operation

Fan motor is a little stiff to turn, am wondering specs on auto fan switch IE resistance, other switches such as fan limit switch and vent control. fan limit switch ohm is 50, other two ohm is 0 to .03

All fan switches should read open line or "OL" when the furnace is cool, but if the motor seems stiff see if it is oilable. It may have small holes covered by yellow or black plastic plugs covering the holes. If it does and you have not oiled it, go to the hardware store and ask for a motor oiler such as a Zoom spout. Place 3-5 drops of oil in each hole then spin the motor by hand, it may loosen up. The limit side of the fan/limit switch has no impact on the fan motor.