F-1 means a bad clock. You CAN test the oven sensor probe if you simply want to rule out the possiblility that it is bad. Since you have an analog meter, set the resistance scale to Rx1 and touch both leads together. Use the side wheel to make the pointer go to the ZERO mark on the meter, then the meter is calibrated for OHMS. The sensor probe should have a room temperature reading of 1091 to about 1100 ohms. If it does, the clock is the only problem and should be replace.
Please open the manual that Al Capone offered you and read page 1-11 ! It's all there.