i have a thermador 48 range, whenever i use the large oven the fault code 4-3 displays after, 4 blue flashes oven them 3 blue flashes heating. i have had it serviced and it wont turn on the first few times after using it and then it starts, i know its a cooling fan fault code but the oven fan stays on cooling it down for about 20 minutes after use and the fault code still flashes. will this effect my oven or should i just ignore it?
thanks in advance