Looks like the first two times you had the control panel replaced and the third time it was the ERC.
On Jenn Air, F1 usually indicates a problem with the control panel (touch pad, membrane switch, the black glass front), so in most cases that's what you would need to replace. If you want to be more accurate, you can try the following test that will help figure out what's triggering the F1 error code - bad ERC/clock or control panel. The test is available at the following link, right below the list of brands -
F1 test.
Replacement parts:
-
Control panel
-
ERC/Clock
Hope this helps.