Top Oven doesn’t heat. The baking element does not come on, but the broiler element does. There is no juice to the lower element. The element itself checks out OK. Is it the upper relay board or the ERC? We have had problems with the clock button working intermittantly and the meat probe working intermittantly. When they don’t work we toggle between different modes on the touch pad and cancel. Eventually the clock responds. Any input would be appreciated.