Main Oven Issue?? (by 3 users)

Same problem, the main oven/fan stopped working halfway through cooking a whole bunch of pizzas. Dunno if someone maybe pressed the wrong button, but we have this A flashing in the corner, if you press the timer button it goes to the timer set, but the plus and minus buttons dont do anything. The manual mentions that if the oven is set on automatic cooking, then the manuel oven wont work. The solution is supposed to be pressing the auto cook on and off buttons together, but nothing happens when we try this.

Have tried to switch the unit on and off at the power, but the clock just reboots with the flashing A.

Any advice, or do i need to get a Technitian out

Cannot turn clock off! Grill works Fan in oven comes on but no heat