hi i have a cust who is saying oven has been a bit eratic over the last 2-3 weeks but now it is showing F03 fault which indicates main board failure is this correct/common as i am guessing it wont be cheap?.
They can often be reprogrammed , via a sam unit . it is also possible to manually re configure the board though i dont have the method to hand .
occasionally , it is a lost cause and new board is required.
sorry that isn’t the most helpful answer….