The motor just started to sound like metal is rubbing against something?
You will want to check the blower wheel to make sure that the blower wheel is not rubbing the housing. If this checks ok then the motor is most likely bad and would need to be replaced.
How can I stop the noise and vibration on my Jenn Air cooktop blower fan?
Answer Hello Albenie! What type of noise is the fan making? Is it coming from the motor? Make sure that the blower wheel is still properly attached and has not come loose. Thanks!