Harry P Michigan City , IN February 15, 2016 Micro wave grill vent broke I had to order a new one. It is a bad design by Whirlpool. All that holds it on is 2 screws through some flimsy plastic. This is the 3rd one I have replaced. Thankfully appliance Pros had the part. 6 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes