Paul R Parkton , MD December 19, 2019 Appliance: General Electric Free Standing Microwave JVM1860BF001 Ge Microwave Jvm1860bf001: Plastic vent assembly at top of microwave was physically broken, fell off the front of the microwave. How to replace Grille Sub Ass'y. Physically separated front and back halves and used new back half to complete a new whole assembly Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes