About a week before it stopped working it made a noise. The noise was if it was struggling to move then it stopped. I replaced the fan motor. I also bought a new fan blade and cap. I probably didn't need a new fan but thought it will be quieter than using the old one and I was right. I did not need the cap as the motor came with a new one. YouTube how to replace the fan for this model and a video shows up. The videos show people taking the door off but you don't need to. If you have some flexibility to reach in the oven. Pretty easy job.