John A Punta Gorda , FL March 17, 2017 Appliance: Whirlpool Microwave GH7145XFQ0 Whirlpool Microwave Gh7145xfq0: The microwave grill vent clip holders were broken. How to replace Microwave Vent Grill. I contacted Appliance Parts Pros.com gave the customer service person the model number of the unit and three days later the new part was delivered. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes