There is a thread about oven not heating, where the fix was replacing the relay on the board.
Yes. There is a fuse on the board. To get to the board, start removing screws, remove the back cover of the oven, then remove the steel shroud that wraps over the top and the two sides, then you can see the black plastic cover of the board.
With the oven unplugged. Use an ohmmeter to measure the resistance of the fuse across the two ends(arrows) and the reading should be 0 ohm or very low but not infinity(open/fuse is burned).
If the fuse is good, then turn to what another member has discovered and he contributed his fix just a few days ago on this forum. Mine has similar symptoms as his with none of the heating elements can be turned on. On mine the convection fan for the back heating coil will not run and the oven light will not lit. I cannot recall but assume it is the same for him. You mentioned that you can make the fan turn on. I think what you heard running was not the convection fan(ac current) but the cooling fan(dc current) for the board. Anyway, as dwpatter mentioned below, that buyer has identified a faulty AC relay and fixed his oven by replacing it with a generic one. That is the white relay marked by the red circle in the photo below. In his message, he has a link for the supplier. I use the numbers on the original relay and identified one on Amazon but it has not arrived yet. ph, make sure you choose one for 16A and with 8 prongs,
