I replaced the temp sensor in this oven in January of last year. I was called this week about the oven not heating. I put the probe of my thermometer in the oven and turned it on. It went right to temperature. I then set the clock for an hour at 350F. It went right to 350 and stayed there. After 20 minutes I was satisfied and left. I got a call several hours later with the same complaint. It was not getting hot.
The next day I checked the sensor(1075 ohms) and the hi limit. Once again it heated fine until I had to stop after 20 minutes. Is the ERC going bad?