Wirelessmind for Model Number JVM1870SF02 The active hidden vent cover which normally opens and closes when the microwave is in operation, no longer open or close when the microwave is in operation. I'm not experiencing an other problems or issues other than this specific problem.
Answer Wireless mind, The most common cause for the activent to not open would be that the motor has failed. To test this you would want to check the motor at the start and see if there is 120 vac. If not then the issue would be the smart board and if there is 120 vac then the motor is faulty and would need replaced. Read More... Answered by AppliancePartsPros.com | Wednesday, July 16, 2014