Jason L Sammamish , WA May 10, 2015 Our ge space maker microwave had a broken air vent grill that no longer opened and closed We had the GE Manual, looked up the broken part number, and ordered a new grill replacement. The new grill arrived within 3 days and I was able to repair the Microwave the same day. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes