Turned Oven unit on and let heat found temp control would adjust to random temperatures. Will order new temp board, probe and knob and return to replace. 6/12/19 Removed the faulty stat, probe and knob then installed new. Then programmed the unit and checked calibration to adjust as needed. The unit is maintaining temperature fine but both cooling fans are supplied with 120v but are not working and need replaced. We will need to order and return to replace. 7/5/19 Removed failed cooling fans, replaced fans, energized and checked operation unit operating normally at this time.