My oven stopped working and the code said it was the control sensor. The repair person came out, but not even the clock was working on the oven. The repair person said to send the control board to be repaired since Maytag and others no longer carry the control boards. Now the light in the oven and time is working. It suddenly went on. Should I take the risk and have a new sensor put in, or should I remove the control board and send it away to be repaired? Oven is 15-16 years old.