Patricia R Windsor , CA January 10, 2016 Appliance: Jenn-Air Microwave JMV9186WS1 Jenn-Air Microwave Jmv9186ws1 / : Needed to replace vent grill. How to replace Grill-Vent (Stl). Put new grill in place and tightened 2 screws and it was done. Doesn't get any easier. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes