An error code on the electronic control display of a GE oven indicates a problem with the oven's functioning. Some of the error messages are easily corrected by the owner. For instance, "ERR" means that a mistake has been made when setting the oven's controls.
Oven door issues, such as "Unlock Door" and "Loc Door" typically indicate minor problems with the self-cleaning system. However, a fault code -- the letter "F" followed by a number -- requires a trained technician to service the oven. For example, "F1" often means a new key panel is needed, while "F3" signals that the oven sensor must be replaced.