Richard K Lynnfield , MA July 20, 2015 Appliance: General Electric Free Standing Microwave JVM1790SK01 Ge Microwave Jvm1790sk01: The grille vent fell off the microwave when i opened the door. How to replace Grille Vent - Stl. Replaced the grille vent. The tabs that secure it to the oven were broken. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes