Hi: my duel fuel kenmore elite sears oven shuts down with the code F-1. When I throw the circuit breaker off and back on it clears the F-1. I can then start the oven and get it to the designated temperature but it shuts down after 10 minutes or so and goes back to F-1

sears says we need an electronic clock control (circuit board) and a new sensor probe. Do we need both and why? If so will both fix the problem?

thanks for you help:

martin