Thanks very much for the reply.
So True Fan and Grill mode both work absolutely fine and stuff is cooked as we expect and the thermometer cuts the oven on and off like we would expect. The problem is only with the quick preheat function – it just doesn’t seem to preheat quickly it seems to be slower than just putting on True Fan mode, and with the thermo set to say 200, it never seems to get above 150 (from turning to where it clicks out).
We haven’t cooked anything with only upper or only lower, but I have turned on those modes from a cold oven and felt the respectiev area getting warm so I thought they are both working (but haven’t gone to high temps I just wanted to see if they started getting warm in that mode). I’m not sure what top outer is.
ART is
JPD906MP
04380326
Thanks again