Reset error and tried running oven couple times. Was using 490 degree oven set point to cook a pizza. Reduced oven temperature set point to try and finish pizza cook time. Able to get thru the cooking of the pizza. Waited until next day. Measured resistance of temperature sensor (1070 Ohms). Checked over control board and did not see any obvious issues. Ordered a new temperature sensor. Measured resistance (1078-1081 Ohms) on new sensor. Installed new sensor. So far oven fine, but haven't cooked a pizza or any bread baking yet. Time will tell.