[bobgville]

Oven emits beeping sounds, displays messages such as "easy convect" or "raising bread 100 degrees," but is unresponsive to button pushing. Pressing start button creates an "ERR" display. Pressing cancel stops the problem only intermittently. Occasionally the error message "F2E3" appears, which indicates the control board needs replacing. Got a new board; the oven behaved itself for an hour or so, then the same problem reappeared. Got another new board and the same thing happened. Either three boards are all bad, including two new ones, or there is something else wrong, which seems far more likely. Any help would be greatly appreciated.