Kurt A Geneva , FL December 25, 2016 Appliance: Model GH4155XPQ-1 Cracked outer door Open microwave door, remove 3 screws on door edge. Gently pry outer door from inner door. Once off, remove 2 screws holding door handle on and transfer handle to new outer door assembly. Open microwave door 90° and press outer door gently onto hinge side first and work towards door handle until fully seated. Install 3 remaining door screws on doors edge. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes