Try this from the error codes page on this site....
This simple test will help determine whether the ERC (Electronic Range Control or Clock) or the touch pad is defective when F1 error code is present.

Note: Some models incorporate the touch pad in to the ERC as a single assembly, in which case this test is not necessary. Simply replace the ERC (Clock).

Warning: If you feel in any way uncomfortable performing this test or making this repair, please contact a qualified appliance repair technician.

1. Disconnect power to the range (unplug the range power cord or turn the power off to the range at the circuit breaker). It is very important that the power to the range has been disconnected, so please double check before continuing.
2. Gain access inside the control panel.
3. Disconnect the touch pad (also called keypad or membrane switch) ribbon from the ERC.
4. Make sure there are no lose wires, or anything else that may cause a short when power is turned back on. Assemble the control panel back the way it was.
5. Turn the power back on.
6. Wait for at least one hour to see if the F1 code comes back (usually accompanied by a beeping sound).
7. If F1 comes back, replace the ERC. If it does not, replace the touch pad.

Hope that helps