Hilton J Bonita Springs , FL November 19, 2016 Broken vent grill Removed two screws that held the top tabs (that had broken) and inserted new grill in the opening and screwed down the new tabs. A breeze. I was pleasantly surprised that the new grill for a twenty-two year old microwave was still available. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes