Marsha B Stonefort , IL June 14, 2017 Charcoal filter needed to be replaced on microwave After ordering & receiving the filter, I followed the manual directions to remove the front grill via 2 screws and inserted the filter. Re-attaching the grill by screwing in 2 screws, completed the task/ Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes