James F Seymour , WI October 17, 2016 Appliance: Frigidaire Microwave GLMV168KQ4 Frigidaire Microwave Glmv168kq4: Dirty screens smell in kitchen. How to replace Charcoal Filter. New screens 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes