Hello....Thank you for looking at this question. Our microwave worked just fine (as we know it). It always made FAN noise when microwave (not oven) turned on. Now, the FAN noise is not there and turn table turns very slowly. I understand that we can replace the motor to turn the table to fix it easily. However, would this fix also fix the FAN part? Is the FAN kicking on when it realizes that the turn table is turning and there is something cooking?
Answer Nick, The turntable motor W10143959 operates on 120 VAC and is rated for 5/6 RPM and is powered from a separate relay. The cooling fan 8206075, also operates on 120 VAC from a relay on the board also. Both parts are independent of each other. When you make a microwave selection on the control panel, and start the cycle the control signals the relay board to activate several circuits power to the cooling fan, power to the cavity light, and power to the "high side" components. The components aren't reactive to each other, they are controlled as separate circuits, all activated at the same time. Without more information we can only guess you may have a faulty cooling fan motor and/or relay board. You may want to check the turntable rotations, at 5 or 6 RPM, that's slow and may be in range. If you need more information please include an e mail address, so we can assist you better and more efficiently, Thanks